New eastern-palearctic clear-wing moths (Sesiidae, Lepidoptera)

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TThhee LLeepipdiopdteorpoltoegircaollSoocgieitycal Society ooff JJaapapnan
leeLua T.voMtoGa 43(2):95-I06, June199Z

New eastern-palearctic clear-wing moths (Sesiid aLeep,idoptera)
gpATENKAi)
Karel and Yutaka ARITAZ)
i) Entomologicar Laboratory, Res.earch Institut eof Food Industry and Agriculturul Serx,ice,
289 11Pecky, Czechoslovakia

Z) Zoological Laboratory, Faculty of Agriculture, Meijo Universit yT,eml)aku-ku, Nagoya,468 Japan
Abstract Seven new species and onc new subspecies of clear-wing moths from Japan and
China are described , Sy'i-zant heespdeorin sp. n. from Okinawa is somewhat similar to S.
quercti s(Mats. )b.ut it differ sfrom it in the completely yellow ventral part of the abdomen,
The host plant i. sunknown, S. inugtita7Fzts sp. n. was reared from Sagi xsp. and Ahzit ssp. in
Hokkaido and Honshu. It is simi]ar to S. JZavivent {reStgr .an)d S. marijanovi. Shelj .b,ut it
cliffcrs from these species in swollen hind metatarsus in rnales. S, PseudoscoliaEfo rspi.n ne. is
described according to a single specirnen from Kyote. It is sirnilar te S. scoliae.n)rme (Blc hin,)
wing pattern (larg er,ounded discal spot of forewing), but it differ ssubstantially from this
species in the coloring of legs and abdomen. The host plan tis unknown. S, vanoi sp, n. is
somewhat similar to the European S. a7idrenaqfZixme CLasp .a)nd to S. ttl7nicogum Yang &
Wang, but i tdiffe risn structure of the niale genitalia and in habitua ldetail s.It is known only
froin a few specimens froni Hokkaido and Kyushu; host plant unknown. S. fakttEz asnp.z in.i
is known from two specimens from IIonshu and Kyushu, and the host plant is unknown, It
is similar to S. wulense Bart. ,S. sl)atenka iGorbunuv and S. arme"iacuin Gorbunov. Sesia
from high inChina,isknown from Itis
solitera sp. n., mountains a single speeimen only. very
characteristic and not similar to other Sesi aspecies. SimiliPePsi s)atn'nanensi ssp. n. froin high
altitudes in North Yunnan (China )is known from two specimens. It is the second palearctic
species of this genus and it is clearly differe nftrom all known Similipap ssipsecies. SIu･zanth-
edcm scogiaaj1]rme .iaPonict .stsmp. n. is known from a few specimens from Hokkaido and
Honshu, It diffe rfsrom typical S. scoliaeforme sc'otiaeforme (Bkh. i)n having a black anal tuft,
yellowish smoked ",ing. and other differences.
Key iverds Sesiidae, S.vTiantJzedo nS,eisi aS,imigipePsis ,new species, new subspecies, eastern-
pa]earct.i ct,axononly.
Sgnanthedon esperi sp. n. (Fig 1.)
rv(ateria lH:olotype 4 : Japan ,Ryukyus, Okinawa I. ,19. V. 1978 ,H. Makihara lgt. ,in coll,
Zool,Lab,,MeijoUniversity,Nagoya (ZLMU).

Description: Wingspan 25 mm. Labial palpus yellow, 2nd and 3rd join wtith black scales;
antenna blackish-brown y,ellow ventrally except black tip . Frons vv'hite, pale brown only
medially; vertex black , Periccphalic hairs black ,w･hite lateral laynd ventrally.
Thorax blackish-brow nwith greenish sheet, II"egul awith individua lochreou$ scales,
with a small yellow spot on basis of forewing ; metathorax with two large groups of yellow
scales; pleura yellow. Fore coxa entirely yellow, femur blackish-brow ndorsally y,ellow
ventrally, tibia and tarsus yell()w ,with blackish-brow nscales dorsall y.IIin dtibia and
tarsus bluish-blac ky,ellow ventrally, with broad yellow stripes along bases of yellow tibial
spurs,
Forewing with indistinc tyellow lin ebetween veins Sc and C, anal margin densely
dusted with yellow. Apical area very narrow, two times narrower than ETA (external
transparent area), being blackish-brown .Discal spot narrow, blackish-brown, with a few
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96 Karel SpixTENKA and Yutaka ARITA
yellow scales along outer margin, ETA trapezium-shaped, large, divide dinto six cells,
Discal spot of hindwing very narrow, reaching only vein M2,
Abdomen black ,lst ,2nd, 5th and 6th tergites narrowly yellow berdered along distal
margins, 4th tergite entirely yellow, only with medial black wedge on proximal margin,
Anal tuft clear-red, only proximally it is blackish-brown ,The entire abdomen yellow
ventrally.
Genitali a\ not examined, male unknown, Variabilit yb,ionomics and habita tunknown.
Differentia ldiagnos2s :The species cannot be compared with any palearcti c(an dalso
oriental) species. It somewhat resembles ``S. tyespij?)rmis-group'', but differ sfrom all
representatives of this group in having an entirely yellow abdomen ventrally, and all
species of this group (wit hsc)me exceptions) have a recl disca lspot on the forewing,
including S. (Mats,),
eastern palearctic querczas
Synanthedon multitarsus sp. n. (Fig s2., 9, l2)
Material:Holotype Japan,Hokkaido, Shari-gun,Koshimizu-cho, Miwa, 21-23.VI.
cr :
1989 ,Y. Arita and S. Kawahara lgt. ,emerged 26. VII. 1989, reared from larvae feedin ginto
a small stem of Skel isxp., in coll. ZLMU, Allotype \ : with same localit aynd host plant as
holotype, emerged 4. VIII. 1989, in coll. ZLMU. Paratypes :1 di, Hokkaido, Sapporo, host
Salix 2.VI. 1984,T.Kumata lgt.,in Entom. Inst.Hokkaido Univ.,
plant sp., em. coll.
Sapporo; 1 4 with same data as holotype ,em, 21, VII. 1980 ,S. Kawahara lgt. ;1 \ with
same localit aynd host plant as holotype ,em. 21. V. 1989, S. Kawahara lgt ,J ,2 \ with same
localit aynd host plant as holotype e,m. 30. VII. and 9, VIII .1989, Y, Arita and S, Kawahara
lgt. ;1 di with same localit ays holotype ,ein. 11 .VII, 1989 ,reared from larva feeding into
a srnall stem of Stzl isxachatinensis Fr.Schmidt. ,S. Kawahara lgt, ;1 (7 with same data as
holotype, ern. 30, VII, 1989, S, Kawahara lgt. ;6 c{n 3 ?, Hokkaido, Shibetsu-shi,
Onnebetsu-cho ,25-26. VI, 1989, em. 13. VII.-1 .VIII .1989 ,reared from larvae feedin ginto
a s m al l st e m o f S d e l is xp ., Y . A r i t a l g t . ;a ll i n c ol l . Z L M U ; 2 d n 2 g , H o k k aido, Shibetsu-
0nnebetsu-cho,25-26,VI,1989, 22.VII.-VIII1.989,Y.Aritalgt.K,.Sv patenka
shi, em. coll. ;
1 ?, Honshu, Nagano-ken, Maruyama-dani, Mibugawa, em. 9. VII. 1981, T. Maejima lgt,.,
in ZLMU; 2 2?,Honshu, Nagano-ken, Hase-mura, Maruyama-dani, 24.VI. 1990,
coll. cl
em, VII, 1990, H. Nakano and S, Niirni lgt, ;1 di 4 9, IIonshu, Aichi-ken, Higashikamo-
gun, Asuke-cho, 25. VI. 1990, em. VII. 1990, H. Nakano and S. Niimi lgt. ;1 cl 1 -9･ ,same
localit y1,5. III .1990 ,em. IV.-V. 1990 ,reared from Atnus serrzaimoides Call. H,. Nakano and
S.Niimilgt.

Description cii : Wingspan 16-23 mm. Labial palpus black, with white scales on 2nd joint,
white anteriorly and irentrally; frons black; vertex black; antenna black; pericephalic
hairs black dorsally ,w･ith white scales, white laterally.
Thorax black, with bluish-green sheen; tegula with individual white scales distally;
metathorax with two groups of long thin ,white, yellow, and black scales; pleura black.
Fore coxa white in basal half ,black in apical half ;femur, tibia and tarsus black ,densely
mixed with white scales. Hind leg blackish-brown ,spurs white, there are narrow white
rings on bases of spurs; lst tarsomere very thick, about as thick as tibia, with adpressed
scales, it sdista lmargin white, Other tarsomeres thin, with adhered scales, black ,densely
mixed with white scales, mostly ventrally.
Forewing blackish-brown,
: cc)stal and anal margin with violet sheen, sparsely covered
with ochreous scales, Discal spot mid broad, blackish-brown a,pical area equally broad as
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ETA, blackish-brown, without pale stripes. ETA trapezium-shaped, slightly higher than
broad,dividedinto5
cells,
Hindwing: hyaline ,with narrow brownish-blac kmargin and long brownish-black
fringe sd,isca lspot narrowly wedge-saped, blackish-brown ,reaching only a littl ebeyond
M2.
vein
Abdomen blackish-brown ,2nd tergite with quite individu alyellow scales on distal
margin; 4th tergite broadly lemon-yellow on dista lmargin, slightly broadening laterally;
lst and 2nd tergites with narrow lemon-coloured longitudin alline slaterall y3;rd tergite
laterall ywith a few yellow scales distally .Abdomen ventrally: 4th sternite yellow on
dist amlargin; 5th sternite iitrit hyellow scales on dista lmargin, but only medially. Anal
tuft dart-shaped (simila arsl iyn S. formicae.f (oErsnpz.e b)l)a,ckish-brown ,with greenish-
bluelustre, borderedb}r line
narrowl>, yellowish-white along periphery,
Differences -? : It differ sonly in having thin lst tarsomere of hind leg.
VariabilityS:ome have distinct 2nd
specimens may not a very pale yellow ring on
abdominal tergite ;pleura sometimes with individua lyellow scales,
Genitalia (Fig9,) Valva bristles
[1 : strongly swollen subapically, mostly covered with with
bifurcat etips. Bare area along ventral margin of valva relatively small, with its dorsal
margin concave. Crista sacculi straight, relatively broad, shortly tipped and covered with
broad, simple, strongly sclerotized setae almost threughout. These bristle sform a nar-
row, slightly convex Iine ,Gnathos with drop-shaped elongated cristae, crista medialis
equaily long ,only proximally in latera lview it overlaps lateral cristae. Saccus very
broad, short, strongly sclerotized, breadened apically, with a shallow incision at tip,
Aedoeagus very slender, straight.
Genitali a9 (Fi g1l2): All parts except antrum and dista lpart of lo.mel laantevaginalis
weakly sclerotized. Apophysae posterierly and anteriorLy roughly equally long; 8th ter-
gite slightly longer than broad. Antrum very long ,twice a$ long as ductus bursae, only
slightly broadened distal lmyerging fluentl yinto ductus bursa' e.0stium bursae slightly
funnel-shape d.Lamella antevaginalis with tiny spines on surface, Bursa copulatrix
small, elliptical, with tiny bristl etshroughout its surface.
Differentia ldiagnosis: It differ sfrom other allied and similar species in having a strongly
scaled lst hind tarsomere in the male. It resembles somew･hat S. Ylaviven t(rSetgr .wh)i,ch
has the abdomen whitish ventrally, and yellow bordered tergites 2, 4, 6 and 7, The similar
S, marijanovi. Shelj .has the abdomen whitish ventrally too, and another shape of anal tuft,
S. formicaefo (rEmsep. w)h,ich is similar to above describe dspecies in the shape of the anal
tuft ,differ sin many characters, e,g. deep-red apical area of forewing and red abdominal
tergites ,etc.
Bionomics and habitat :Larva liN, ewsithin stems of low-･growin gshrubly willows or a
sma]l branch of large willow trees (Sal isxpp.) or, rarely, alder <Alnt tsesrrztlatoides) which
grow along streams, riverside and river beaches . The pupa is in a cocoon very close to the
bark, Adults occur from early Jul yte early August, sometimes together with S},nanthedon
heza iSVpatenk a& Gorbunov in Hokkaido. The length of the lile-cycl eof this species is
not verified.
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SipATENKA
98 Karel and Yutaka ARi'rA
7
Figs.1 - 8. Sesiida especies. 1. Sl';･2anlh edgospneri sp, n,, ?, hoiotypei 2. S.Pseudo-
multitaiszts sp. n,, di,paratype; 3. S. )/anoi sp. n., 0.holotype; 4. S.
scogiae.t'orine sp. n., \, holotype; 5.S.scoliae.foxn i1e'mponieitm ssp. n. 8,
holotype ;6. S..f2tkttz us7pn. iin,, \, holotype; 7. Sesi asolitem sp. n., dn,
holotype ;8 .Simitipop sJi,s;tnnanensis sp, n,, [Y, holotype.
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New Clear-Wing Moths frem East Asia 99
Synanthedon (Figs3.,10)
ganoi sp, n,
Material :Holotype " : Japan K,yushu, Kuro-dake, 3, VII, 1982, M. Nakajima lgt, ,coll,
ZLMU, Paratypes:L7 Japan,Hokkaido, Shari-gunK,oshimizu-cho, Miwa, 4.VIII,
cia, and
8.VIII.1975,S.Kawahara lgt., ZLMU.
coll.
Description: Wingspan 23mm. Labial palpus black dorsall y,w･ith individua lyellow
scales on segments 2-3, yellow anteriorly and ventrally; antenna brownish-black ,brown
ventrally; frons dark brown; vertex blackish-brown ;pericephalic hairs ochreous-yellow.
Thorax blackish-brown ,pleura with yellow spot, Fore leg i coxa yellow dorsall yover
the whole length ,tibia and tarsus ochreous dusted .Hind leg : blackish-brow nwith strong
violet lustre t,ibia with yellow rings along base sof yellow spurs, tarsus blackish-brown ,lst
segment mixed with yellow, tarsus throughout yellow ventrally.
Forewing with elongate apex, costal and anal margins blackish-brow nwith individual
ochreous scales, disca lspot medium-broad, blackish--brow na,pical area very broad,
brownish black ,about apex it is 1.5 times as broad as ETA, with very indistin cytellowish-
brown stripes bet"reen veins, ETA slightly higher than broad, trapezium-shaped, divided
into 5 cells. All dark parts of wing ochreous dusted from ventral side,
Hindwing hyaline, with narrow blackish-brow nouter margin and short blackish-
brown fringes . Discal spot very narrow and short, reaching only the vein M2, being
blackish-brown.
Abdomen blackish-brown, with violet sheen, 2nd tergit ebordered w･ ith clearly yellow
row of scales along dista lmargin, 4th tergite with more distinc ytellow dista lmargin, anal
tuft bluish-blac kwith some individu alyellow hairs .Abdomen laterall y2:nd tergite
yellow bordered distall y4,th tergit eone yellow. Abdomen ventrally: 4th sternite yellow
throughout, 5th with dark latera mlargin, 6th yellow only medially, Anal tuft mixed with
ochreous-yellow scales, valva ochreous distally.
Female unknown.
Variabilit yP:aratypes from Hokkaido have yellow parts paler, and this character is
distinc tes,pecially on hind tarsi and abdominal sternites. Yellow coloration is reduced on
dista lhalves of 4th and 5th sternites. One of paratypes has indication of yellow distal
borderin gof 5th tergite dorsally,
Genitali adi {Fig.10 )Va:lva narrow, tipped, broadened subapically, A wedge-shaped
sclerite projecting into the bare area along ventral margin of valva is densely covered with
strongly sclerotized setae. Valva is densel ycovered with bristl efsrom this projection
towards apex and very sparsely covered with bristle tsowards ba$e . Crist asacculi weakly
sclerotized, marging apically into scleretized band, which is parallel with ventral margin of
valva. Ventral margin of crista sacculi is covered with an elongated group of strongly
sclerotized tiny bristl essubapically, and with a broad, wedge-shaped group of strongly
densely bristles Gnathos lat-
sclerotized, arranged, apically. with very elongate angular
eral cristae and with very long but not very high crista medialis, which is about twice as
long laterales.Saccus broadened
as cristae very short, strongly apically, and with a
shallow incisio onn tip. Aedoeagus short, very broad basally s,harply narrowing towards
tip ,being equally very narrow in apical third.
Differenti adliagnosis :Somewhat similar to S. andrenaeforme (Lasp. b)u,t it differ sfrom
the latte rin the narrower apex of the forewing ,broader disca lspot of the forewing ,and
blackis hbrown anal tuft (i nS. andrenaelbTme and also in S, ulmicolum Yang & Wang
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New Clear-WingMoths fromEastAsia IOT

indistalhalD,
yellow
Bionomics habitat:
and unknown.
Sgnanthedon pseudoscoliaefbrme sp. n. (Fig 4.)
Material:Holotype 4: Japan,Kyoto, 1'akaragaike,10,V. 1957,Takeuchi lgt.,
coll.
Entomol,Lab,Univ,OsakaPrefecture.

Description: Wingspan 22,5mm, Labial palpus dark brown, yellowish-white anteriorly
and ventrally, Frons dark brown, occipital fringe swhite; vertex blackish-brown p,erice-
phalic hairs blackish-brown o,nly ventrally with a few ･whitish scales ; antenna dark brown.
Thorax blackish-brow nwith greenish lustre t,egula bordered with individu adlirty-
hairs inner individuadlirty-whitheairs,
white along margin, metathorax with pleura with
large yellowish-white spot, Fore leg dark brown throughout; hind leg blackish-brow･n
with purp]e lustr e,Hind tarsus pale yellow, with black spines ventrally, whitish posterior-
ly, Tibia with white scales along dista lmargin, mixed with white colour posteriorly;
spurs dirty white.
Forewing: blackish-browndusted,
costal and anal margin narrowly as well as veins.
Apical blackish-brown,discal broad,being
area very narrow, spot very almost rounded ;
ETA large ,trapezium-shaped, concave along outer margin, divide dby veins into 6 cells,
6th cell is situated between veins Cui and Cu2 and not between R4-Rs as it is usual in such
a large ETA area. Costal and anal margins and cubital stem yellowish-white dusted
ventrally.
Hindwing with very narrow blackish-brown rnargin and long blackish--brown fringes,
which change gradually into white towards base of wing. Discal spot blackish-brown,
very narrowly wedge-shaped, but one of its rows of scales reaches the stem M3-Cu].
Abdomen blackish-brown ,2nd and 3rd tergite with very narrow but distinc twhite
band along dista lmargins. Anal tuft blackish-brow nvaTith t"ro narrow, longitudin awhlite
stripes, Abdomen laterall yt:ergites 1-3 with narrow longitudin awlhite line ,Abdomen
dark brown, few in distal 4th
ventrally: with a white scales medial part of margin of
sternite; anal tuft without pale scales.
Males
and variability remain unknown,
Genitali awere not examined because only the female is known and there is littl perobabil-
ity to find diagnosti ccharacters and therefore is not desirabl eto spoil the holotype,
Differenti adliagnosis :Somewhat resembles S. scoliaopTme (Bkh. i)n the shape and colour
forewing in discal All body
of and especialiy very similar shape of spot. other part of are
differe n(tdar kfore leg, white rnargins of abdominal tergites 2 and 3, anal tuft with two
white stripes, etc.).
Sgnanthedon scoliaeforme japonicum ssp. n. (Fig 5.)
Material :Holotype di : Japan ,Hokkaido, Shari-gun ,Koshimizu-cho ,em, 2. V'II 1,991 ,ex
Betula PILztyPh ivalr.l d1'oponica, S.Kawahara lgt, ,coll. ZLMU. Paratypes :1 5i ,Japan,
Honshu,Yamanashi-ken, Kitakoma-gun,Masutomi, Kanayama-toge, 22, VII. 1961,T,

Saigusalgt.;1?,Japan,Honshu,Nagano-ken,Yatsugadake,Happodai,26,VII.1981,Y.

Kishida lgt.;1 9, data holotype, in ZLMU.
same a$ all paratypes coll.
Description: VLiingspa n30-34 mm. Frons blackish--brown w･ith white band in front of eye
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gPATENKA
102 Karel andYutakaARITA
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Figs.12-1 3.Female genitalia of Sesiida sepecies. 1 2. S .v n a n th e d o"multita?sits sp. n.,
paratype; 13. S. fakt{itc smp,i in., paratype.
(witho uwthite band in nominal form) . Labial pa l p u s b l a c ki sh-brown, yellowish-white
ventrally and posteriorly <orange in nominal form ) . F or e w i n g " ri t h ochreous touch Cin
nominal form without colour touch) ; 4th abdomina 1 sternite yellow, sternites 5-6 black (in
nominal form are sternites 5-6 orange), Anal t u f t b l a c k ( o r a n g 'ein nominal form),
Subspecie s.ioponicum is also large rthan nominal f o r 'm , D i f f e r e n c e ms genitalia are not
important, it is only ostium bursae in S. scoliaElibrme 1mponicum lower.
InScandinavianM,ongolian SiberianS,
and east sc o gi a cfo rme also oc'cur examples with
black anal tufts and a white band in front of the e y e s . T h i s f o r m ls v･ery common ln
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New Clear-Wing Moths from East Asia 103
Mongolia and the Far East, but is in all other characters identica lwith the nominal form
and occurs sympatrically,
Synanthedon fttku2umi isp. n, (Fig s6, .13)
Material : Holotype ? : Japan ,Honshu, Nagano-ken, Kiso-gun ,Agematsu-cho, Kitano ,5.
VII. 1987, K. Fukuzumi lgt, ,coll, ZLMU, Paratype: 1 \, Japan ,Kyushu, Sobosan (Bungo),
19. VII. 1931, Esaki and Fujino lgt. ,coll. Entomological Lab., Kyushu University.
Descriptio n:Wingspan 23.5mm. Antenna blackish-brown ;labia lpalpus blackish-
brown with a few grey scales, white ventrally and posteriorly ;frons brown with strong
lustre ;occipital fringe white; vertex blackish-brown with blue lustre ;pericephal ihcairs
ochreous.
Thorax blackish-brown ;fore leg blackish-brown ,tibia brown ventrally, Hind leg
blackish-brown ,on the bases of spurs with narrow white rings, spurs white ventrally,
Forewing developedhyalline ETA large,
with very good areas ; rounded, with concave
outer margin, divide dinto 5 cells, with small 6th cell between veins R4-Rs, more than two
times broader than apical area, Costal and anal margins and apical area dark brown,
light discal blackish-brown.Forewing
without scales; spot narrow, ventrally; costal and
anal margin and cubital stem densely dusted with ochreous scales ; outer margin of discal
spot with small orange spot,
Hindwing with very narrow blackish-brow nouter margin and with narrow blackish-
brown disca slpot, which reaches only vein M2 ; fringe slong ,blackish-brown,
Abdomen blackish-brown ;4th tergite dusted "rith orange-red scales, its dista lone-
third completely red. Anal tuft mixed with white scales. Abdomen ventrally: 4th ster-
band distal
nite with narrow red on margin.
Variabilit yP:aratype has a white spot on the basis of the fore coxa dorsall y.It is
damaged,
without antennae,
Genitali a4 (Fig 1,3): 8th tergite about as broad as long; ostium bursae slightly convexly
depressed ;antrum a littl eshorter than ductus bursae ,narrow; ductus bursae straight,
narrow; bursa copulatrix ball-shaped w,ith small rounded indistin csitgnum distally,
Differenti dailagnosis :Similar to other "red-bandedJ' species in the genus Sb,nanthed oSn.:
spatenkai Gorbunov from Georgia ,S. armeniacum Gorbunov from Armenia, S, uvatense
(Bart .f)rom S. Ural Mts. and Kazakhstan and S. Pipizitb r(mLeed. f)rom Lebanon, Syria
and S, Turkey. In S, spatenk aiis 4th sternite completely red (i nS. only distal
,iitkuaumii
margin of 4th sternite recl), S. ztmlense has abdominal sternites 4-7 red and S. Pipi2ijiorme
has blackish-brown,
all abdominal sternites
Sesia (Fig7.)
solitera sp, n.
Material: Holotype China,Quinghai-ShenMgt,,Riyue, 3500-4000m, 2.VI, 1986,J.
cin :
Okuma lgt. ,coll. ZLMU.
Description :Wingspan 29. 0mm. Antenna thin, black; labia lpalpus black dorsall yye,l-
lowish-whit eventrally; frons black with white occipital fringe ;vertex black with a few
echreeus scales,
Thorax black with long ,whitish-yellow hairs on the whole surface; patagia whitish--
yellow, Pleura black with whitish hairs .Fore leg black ,tarsus yellow, tibia yellow
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TThhee LLeepipdiopdteorpoltoegircaollSoocgieitycal Society ooff JJaapapnan
gpATENKA
104 Karel and Yutaka AmTA
ventrally, Hind leg black, mixed with ochreous scales, tarsus yellow.
Forewing relatively short and broad, hyaline, with black veins and narrow margins,
Apical area hyaline ,without scales, A few dark ochreous scales present on cestal and
anal margin near base of wing; fringe svery short, black; discal spot narrow, straight,
black,
Hindwinghyaline black
with veins and narrow outer margin.
Abdomen black with narrow whitish bands at proximally margins of tergites 4-7;
tergites 2-3 in proximal half whitish, Abdomen ventrally: black ,sternites 1-2 black,
sternites 3-7 in proximal half swhitish.
Female up to date unknown.
Genitalia because isknown,
were not examined, only one specimen
Differentia ldiagnosis :It is not comparable with any other species of genus Sesi ao,n the
basis of habitually rernarks.
Bionomics habitat
and unknown.
Similipepsis (Figs8,,11)
gunnanensis sp, n,
Material :Holotype ti a: China, Noth Yunnan, A-tun-tse, ca 4000 m, 29. VI. 1936, H. H6ne
lgt, ,coll. Mus. A. Koenig, Bonn. Paratype: 1 cl, same localit y2,5. VI. 1936.
Description: Wingspan 21.5rnm. Frons whitish; vertex black; occipital fringe black;
antenna dark brown dorsall yp,edicellu swhite ventra!ly; labia lpalpus brown, apical parts
of segments 2 and 3 mixed with white scales ventrally.
Thorax completely black; legs black; hind tibia and tarsus white posteriorly ;spurs
white,
Forewing dark brown with purplish gloss, base and disca lspot darker; there are only
small hyalin eareas between veins M3-Cui and Cui-Cu2, the latte rone is very indistinc tand
small.
Hindwing hyaline; veins and very narrow outer margin dark brown; posterio rhalf
between veins Cui-Cuz and outer part of anal area are scarcely dusted with dark brown
scales; cilia grey.
Abdomen black ; tergites 3, 6 and 7 with narrow orange distal margin, the ring on 6th
tergite are broader than the other; lst segment moderately narrowed distall y2,nd
depressed,3rd 4thbroadly Abdomen
extremely slightly expanded, expanded. ventrally:
black ,2nd sternite white, 3rd and 6th sternites bordered orange distally.
Female
unknown.
Very
Genitali adn (Fig.11 )U:ncus long with acute tip ,tegumen broad; gnathos sharply
gpatenka;
protruded, similar as in S, tahizazva iArita & valva typically curved, on whole
surface with exception the base with unspecialized long hairs; saccus very broad, rounded
at tip; aedoaegus slightly longer than valva, very broad at base, considerably narrowed
apically straight, with two teeth.
gpatenka,
Differenti adliagnosis :A littl esimilar to S. takizawai Arita & but differe nitn
many characters. In S. inkieawai there are a littl deeveloped PTA and ATA too (blackish-
brown in S. yunnanensis); in S. inkizawai abdominal sternites 3 and 6 black (wit horange
bands in S. yunnanensis), etc. S. lasioce rHamps,, from Assam, the only one known 0riental
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