A new species of jurinella (Diptera Tachinidae) from the dominican republic with a key to genera of the tribe tachinini from the Caribbean

2007·3.3 MB·

by  Norman E Woodley

PROC. ENTOMOL. SOC. WASH.
109(4). 2007, pp. 856-862
A NEW SPECIES OF JURINELLA (DIPTERA: TACHINIDAE) FROM THE
DOMINICAN REPUBLIC WITH A KEY TO GENERA OF THE TRIBE
TACHININI FROM THE CARIBBEAN
Norman E. Woodley
Systematic Entomology Laboratory, PSI, Agricultural Research Service, U. S.
Department of Agriculture, c/o National Museum of Natural History, Smithsonian
Institution, P.O. Box 37012, MRC 168, Washington, DC 20013-7012, U.S.A. (e-mail:
[email protected])
—
Abstract. Jwinella baonico, n. sp., (Diptera: Tachinidae) is described and
illustrated from the Sierra de Baoruco, Dominican Republic. A key to the genera
of Tachinini from the Caribbean is presented. Two new generic synonyms are
=
proposed: Hystriciella Townsend, 1915 and Parajwinia Townsend, 1928 both
JurineUa Brauer & Bergenstamm, 1889, resulting in JurineUa pilosa (Drury), new
combination and JurineUa obesa (Townsend), new combination.
Key Words: Diptera, Tachinidae, Tachinini, JurineUa, Caribbean, taxonomy
JurineUa Brauer & Bergenstamm is Members of the tribe Tachinini are
a New World genus of Tachinini that moderate to large tachinids that have the
ranges from southwestern United States prosternum bare, the first postsutural
to southern Brazil and northern Argen- supra-alar bristle at least as long and
tina. All of the described species are stout as the first postsutural dorsocentral
included in Guimaraes (1971) who listed bristle, and the hind margin of the hind
53 species in JurineUa, and one each in coxa setose, usually over the entire hind
the genera HystricieUa Townsend and margin (but if sparse, present at least on
Parajwinia Townsend, which I consider the posterolateral corner). Tachinines are
to be congeneric. During collecting in the a very diverse tribe in Central and South
Dominican Republic I obtained speci- America, particularly at middle and high
mens of a striking new species that is elevations, that includes several hundred
described herein (my material deposited species. However, the fauna of the
at the Department of Entomology, Caribbean islands is surprisingly depau-
Smithsonian Institution, Washington, perate, with fewer than a dozen recorded
DC, cited below as USNM). Additional species. This undoubtedly reflects lack of
specimens were made available from collection to some extent, but in my
material collected during several expedi- experience in the Dominican Republic
tions by colleagues from the Carnegie tachinines are truly scarce. Since there
Museum of Natural History, Pittsburgh, are a small number of Caribbean genera
PA (cited below as CMNH). Paratypes and most species in the region are poorly
are also deposited at the Canadian known, it seems worthwhile to present
National Collection, Agriculture Ca- a generic key at this time to facilitate
nada, Ottawa (cited below as CNC). their identification. I have included the
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109, 4 857
islands from which the genera are known - Abdomen with marginal setae on tergites 3
based on hterature records and material and 4variable innumberbut not displaced
present in the USNM collection. In all anteriorly at midline 6
likelihood, some of the genera will be 6. Aoubsdommeidniaalntemragritgein3alwitshetaae;rolwarogfenruombeurs-t
found on additional islands. Taxa from flies with very shiny reddish-brown abdo-
essentially continental islands, especially men lacking tomentum (Cuba, Jamaica;
Trinidad, are not included. Adejeania Sabrosky 1969) .... Juriniopsis Townsend
armata (Wiedemann) was described from - Abdominal tergite 3 usually with a single
a specimen supposedly from Cuba, but pair ofmedian marginal setae, rarely none;
moderate to large flies but less robust with
this is believed to be erroneously labeled abdomen variably colored but usually with
(D. M. Wood, personal communication, at least some tomentum (widespread in
cited in Woodley 1993) and no further Greater and Lesser Antilles)
Adejeania Townsend have been seen Archytas Jaennicke
from the Caribbean, so the genus is Genus Jurinella Brauer & Bergenstamm
excluded from the key.
&
Jurinella Brauer Bergenstamm, 1889:
132. Type species, Jurinia caeruleoni-
Key to Genera of Tachinini from the
gra Macquart, by monotypy.
Caribbean Islands
Hystriciella Townsend, 1915: 95. Type
1. Eyes densely pilose; abdominal tergites 3 species, Hystriciella aurifrons Town-
and 4 with a dense medial patch of discal send [holotype examined, USNM](=
setae; large palpi present (Cuba, Domini- Musca pilosa Drury), by original des-
can Republic, Jamaica)
Jurinella Brauer & Bergenstamm ignation. New synonymy.
- Eyesappearingbare, any setaepresent very Parajurinia Townsend, 1928: 153. Type
small, sparse, and inconspicuous; abdomi- species, Parajurinia obesa Townsend
nal tergites with or more usually without [syntype examined, USNM], by origi-
medial discal setae; palpi present or absent 2 nal designation. New synonymy.
2. Lower part of parafacial with two large,
bristle-like setae that are very much larger Remarks.—The following new combi-
than surrounding hairs; palpus filiform,
nations result from these new generic
very reduced, or absent 3
- Lower part of parafacial without large, synonyms: Jurinella pilosa (Drury), new
bristle-like setae; palpus large, expanded combination and Jurinella obesa (Town-
apically, club-shaped 5 send), new combination.
3. Palpi completely absent (Cuba, Dominican
Republic, Puerto Rico) Jurinella baoruco Woodley, new species
Deopalpus Townsend
- Palpi present although they may be very (Figs. 1-4)
small 4 Diagnosis. Jurinella baoruco differs
4. aPanltpeinnfaillipfoerdmi,celab+outfirsats flloanggelalsomleernegtchomo-f from all other described Jurinella from
bined (Dominican Repubhc) the Caribbean by having a pale, shiny,
Peleteria Robineau-Desvoidy reddish-brown abdomen (Fig. 1); brown-
- Palpi short cylindrical, much reduced, ish-yellow legs; and pale calypters.
much shorter than length of first antennal Description. Male:Head with ground
flagellomere (Puerto Rico)
Neosarromyia Townsend color yellowish to brownish but nearly
5. Abdomen with a row ofmarginal setae on entirely obscured by golden yellow tomen-
tergites3and4thatisdisplacedanteriorlyat tum, ground color only visible on frontal
midline enclosing a small patch of bristles vitta andextremely narrowly alongptilinal
between it and posterior margin oftergite; suture, parafrontals and ocellar tubercle
large yellow and black flies (Dominican
Republic; Woodley 1993) apparently darker; major setae of frons
Paradejeania Brauer & Bergenstamm and vertex, vibrissae and a few setae above
858 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON
Fig. I. Dorsal habitus ofmale ofJwinella baoriico.
and below them, and upper setae of group of larger, yellow setae present
postocular row black, all other setulae subapically on ventral side; proboscis
and larger setae golden yellow; parafacials brownish yellow, prementum 0.76-0.88
setulose; frons at vertex 0.26-0.32 head height ofeye, labella with yellowish hairs.
width; without proclinate orbital setae; Thorax predominantly yellowish
antenna orangeyellow, sometimesparts of brown, scutum, lower parts of pleura,
basal flagellomere irregularly darker, aris- subscutellum and mediotergite darker;
ta brown; first two aristomeres subequalin scutum with dense, yellowish-gray to-
length, each about 3 times longer than its mentum; scutum with 4 dark vittae best
diameter; scape and pedicel with black visible in posterior view, each endingjust
setae; palpus dark yellow, laterally flat- anterior to suture, then submedial pair
tened, inner surface bare, with short black extending postsuturally from suture
setaemostlyconfinedtodorsalside,asmall about one-third ofdistance to scutellum.
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109, 4 859
and sublateral pair extending about two- Terminalia with fifth sternite (Fig. 2)
thirds to scutellum; also a more vague with medial emargination narrowly U-
medial dark vitta presuturally; major shaped, resulting posterior lobes acute in
setae of thorax black, finer setae and ventral view, rounded in lateral view;
setulae mostly pale to golden yellowish, epandrium (Figs. 3^) evenly rounded in
including all setae ofmeron, except black posterior view, mostly covered with
hairs intermixed on scutum; katepister- small setae but with 5-7 large setae on
num with three setae arranged in a tri- each side dorsally; surstyli with lower
angle with lower seta equidistant from portion arcuate with apices directed
anterior and posterior setae; wings with posteriorly (Fig. 4), apices gently curving
slight brownish infuscation, tegula and medially in posterior view (Fig. 3); cerci
basicosta yellow, veins yellowish to pale entirely fused (Fig. 3), short, triangular-
brownish; all wing setae black; both ly-produced ventrally, extreme apex re-
calypters pale, whitish with some pale flexed anteriorly and minutely emargin-
yellowish-brown infuscation, all hairs ate; Length 13.5-16.0 mm.
along fringe pale; halter with stem Female: Very similar to male in most
yellowish, knob whitish yellow; legs respects, differing as follows: Head with
entirely dark yellowish with tibiae and frons 0.29-0.32 head width, with two
tarsi slightly darker than femora; hairs proclinate orbital setae. Thorax with
and larger setae of legs primarily black tarsomeres 2—^ of front leg slightly
but dark yellowish hairs present on expanded laterally and flattened; claws
coxae and femora, the latter with black and pulvilli of all legs smaller than in
hairs mostly on dorsal and anterior male. Length 13.7-15.1 mm.
—
surfaces; pulvilli pale yellow, claws yel- Material examined. Male holotype
low with black apices. (USNM): DOMINICAN REPUBLIC:
Abdomen yellowish brown, shiny, Pedernales Province, Parque Nacional
virtually without tomentum, tergites Sierra de Baoruco, Las Abejas, 18°
1+2 black medially, tergite 3 with small 09.0irN, 71°37.342'W, 1150 meters, 11
black medial area sometimes ending July 2004, N. E. Woodley. Paratypes:
before posterior margin, some specimens 26c?, 5$, all DOMINICAN REPUB-
with indistinct darkening on narrow LIC: 1 2, Pedernales Province, Parque
medial area of tergite 4; major setae Nacional Sierra de Baoruco, Las Abejas,
and hairs of abdomen black except 7.3 km NNE of Las Mercedes, 18°09'N,
anterior areas of tergite 1+2 and medio- 71°38'W, 1100-1150 meters, 23 August
ventral areas of tergites 1+2, 3, and 4 as 1983, F. M. Harrington, J. D. Weintraub
mwealjloarsssetteareniotfesst1e-r4niwteisthblyaeclkl;owtehrgaiitres 1b+u2t N(USoNfML)o;s1A?r,rPoeydoesr,na1l8e°s1P5r'oNv,in7cer,455'kWm,
without major setae; tergite 3 with patch 1600 meters, 28 March 1984, F. M.
of setae occupying medial third, setae Harrington, J. D. Weintraub, N. E.
along posterior margin larger than Woodley (USNM); 3$, Pedernales
others; tergite 4 with complete row of Province, 5 km N of Los Arroyos,
large setae along posterior margin with 18"15'N, 71°45'W, 1600 meters, 13 No-
medial two pairs reduced in size, anterior vember 1985, N. E. Woodley (USNM);
to this a transverse band of large setae 1 S, Pedernales Province, 5 km NE of
slightly wider than patch on tergite 3 and Los Arroyos, 18°15'N, 7r45'W,
not quite extending to anterior margin; 1680 meters, 17-18 July 1991, C. Young,
tergite 5 except for narrow area along J. E. Rawhngs, S. Thompson (CMNH);
anterior margin completely covered with 16c?, Independencia Province, near sum-
larger setae. mit ofSierra de Baoruco, 3.5 km S ofEl
PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON
860
Figs. 2-4. Male terminalia of Jurinella baoruco. 2, Fifth abdominal sternite, ventral view. 3, Male
terminalia, posterior view. 4, Male terminalia, left lateral view. Abbreviations: c, cerci; ep, epandrium;
sur, surstylus.
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109, 4 861
Aguacate, 18°17'N, 7r42'W, 2210 me- Jurinella baoruco differs from other
ters, 30 September 1991, montane mead- described Caribbean species ofthis genus
ow, C. Young, S. Thompson, R. David- by having the paler coloration noted
son, J. Rawlins (10 in CMNH, 4 in above. Both Jurinellapilosa (Drury) and
USNM, 2 in CNC); 5S, Independencia /. epileuca (Walker) have darker abdo-
Province, north slope Sierra de Baoruco, mens and legs, dark brown to black. I
3 km ESE of El Aguacate, 18°18'N, have seen a single specimen (CMNH) of
71°42'W, 1980 meters, pine woodland, Jurinella from the Sierra de Martin
28-29 September 1991, J. Rawlins, R. Garcia, Dominican Republic, that re-
Davidson, C. Young, S. Thompson (4 in sembles /. baoruco, but it differs by being
CMNH, 1 in USNM); 1 2, Independen- notably smaller and having more uni-
cia Province, Sierra de Baoruco, Loma formly pale hairs on the thoracic scutum.
del Toro, 18°17'16"N, 71°42'46"W, It likely represents an additional unde-
2310 meters, meadow in pine woods, 7- scribed species.
8 November 2002, W. A. Zanol, C. W. Jurinella baoruco has to date only been
Young, C. Staresinic, J. Rawlins collected from the Sierra de Baoruco,
(CMNH); 1 2, Independencia Province, formed when the southern paleo-island
Sierra de Baoruco, Loma del Toro, collided with the northern paleo-island
5.3 km SW of El Aguacate, 18°17'16"N, to form modern Hispaniola (Keith et al.
71°42'46"W, 2316 meters, Pinus-Garrya 2003 and references therein). Parade-
montane forest, 29-30 March 2004, C. jeania xenisnia Woodley (1993) was also
Young, R. Davidson, J. Rawlins originally known from the Sierra de
(CMNH); \$, 12, Independencia Prov- Baoruco, but I have recently collected
ince, Sierra de Baoruco, north slope, specimens near La Cienaga in the Cor-
13.5 km SE of Puerto Escondido, dillera Central, La Vega Province. It
18°12'24"N, 7r30'54"W, 1807 meters, seems likely that /. baoruco will eventu-
broadleaf-Pww^ dense woodland, J. ally be found to have a wider distribution
Rawlins, V. Verdecia, C. Young, C. since these insects are strong fliers.
Nunez, W. Za—nol (CMNH). The males of J. baoruco I collected
Etymology. Thespeciesname, anoun near Los Arroyos in 1985 were frequent-
in apposition, is from Sierra de Baoruco, ing flowers on roadside shrubs 2-3 me-
the mountain range from which all ters above the ground.
known specimens have been collected.
Remarks. Jurinella baoruco is one of Acknowledgments
the minority species in the genus that has I am very grateful to Chen Young of
a reddish-brown abdomen. Its general the Carnegie Museum for loaning mate-
appearance resembles that of Dumerillia rial in his care. Some of the specimens
rubida Robineau-Desvoidy from Brazil. from the Carnegie were obtained during
Dumerilla Robineau-Desvoidy isamono- a project funded by National Science
typic genus that differs little from Jur- Foundation grant DEB-0206520 of the
inella, mainly in having smaller patches Biotic Surveys and Inventory Program. I
of discal setae on abdominal tergites 3 am also grateful to Nigel Wyatt of The
and 4, and males which have proclinate Natural History Museum, London, for
orbital setae. It is quite possible that excellent notes he sent on the type of /.
Jurinella will be synonymized with Du- epileuca (Walker). Thanks go to Chris-
merillia when the generic concepts within tina Marent who drew Figs. 2-4, and
this group of tachinine genera can be Gary Ouellette who took the habitus
studied in detail. photograph and composed the final
862 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON
plates. Steve Lingafelter and Allen Norr- Guimaraes, J. H. 1971. 104. Tachinidae (Larvae-
bom (Systematic Entomology Laborato- voridae). In A Catalogue ofthe Diptera ofthe
ry), Wayne Mathis (Smithsonian Institu- AdemeZroioclaosgiSao,utUnhivoefrsthiedaUdneitdeedSaStoatPeas.uloM,usSeauo
tion), and Paul H. Arnaud, Jr. (Cali- Paulo, pp. 104.1-104.333.
fornia Academy of Sciences) kindly Sabrosky, C. W. 1969. A review of the genus
reviewed the manuscript. Juriniopsis Townsend (Diptera: Tachinidae).
The Florida Entomologist 52: 79-90.
Townsend, C. H. T. 1915. Nine new tropical
American genera of Muscoidea. Insecutor
Literature Cited Inscitiae Manstruus 3: 91-97.
Keith, A. R., J. W. Wiley, S. C. Latta, and J. A. Sou.t1h928A.meNreicwa.MuWsiceoniedreaEfnrtoommohluomgiisdcthreopZiecia-l
Ottenwalder. 2003. The Birds of Hispaniola, tung44: 143-154.
Haiti and the Dominican RepubHc, an Anno- Woodley, N. E. 1993. A remarkable new species of
tated Checklist. The British Ornithologists' Paradejeania from the Dominican Republic
Union/British Ornithologists' Club, Tring, (Diptera: Tachinidae). Proceedings ofthe Ento-
England, xvi + 293 pp. mological Society ofWashington 95: 182-188.