A new black fly of Simulium (Montisimulium) from Sichuan Province, China (Diptera, Simuliidae)

2006·0.23 MB·

Acta Zootaxonomica Sinica, 31 (3): 643- 645 (July, 2006) ISSN1000(cid:1)0739
动物分类学报
A NEWBLACK FLYOF SIMULIUM ( MONTISIMULIUM ) FROM SICHUAN
PROVINCE, CHINA (DIPTERA, SIMULIIDAE)
ZHANGChun(cid:1)Lin, CHENHan(cid:1)Bin
Guiyang MedicalCollege, Guiyang(cid:1) 550004, China
Abstract(cid:1) Anew species, Simulium (Montisimulium) jiajinshanense sp. nov., isdescribed on basisof specimens collected
fromJiajinshan, Sichuan Province, China. This new species can be readily separated fromseveral known related species by
severalcombinationcharactersincluding the shape of cibariumin the female, the structure of female and male genitalia, the
simplecocoon and the filamentsbranching in the pupa, and the severalcharactersof larva.
Key words(cid:1) Diptera, Simuliidae, Simulium (Montisimulium), new species, Sichuan Province.
(cid:1) (cid:1) Previous paper (Chen, Huang and Zhang, 2005) with distal 1/3 brown, andcovered with goldenhairs;
reported two new species belonging to the subgenus all tibiae brown except median large portions of out
Montisimulium from Sichuan Province, China. This surface which are pale, and covered golden hairs; all
paper describes another new species, Simulium tarsi brown except basal 1/ 4 of hind basitarsus and
(Montisimulium) jiajinshanense sp. nov. from same basal 1/2 of second tarsomere pale. Fore basitarsus
distribution area. The type specimens are deposited in nearly parallel(cid:1)side, W(cid:2)L= 1(cid:2)0(cid:2)8(cid:2)0, calcipala much
theDepartment of Biology, Guiyang Medical College. enlarged, pedisulcus deep. Each claw with a strong
basal tooth. Wing. Costa with spines as well as hairs.
Simulium ( Montisimulium ) jiajinshanense sp.
Subcosta hairy. Basal section of Rhaired, hair tuft of
nov. (Figs. 1(cid:1)16)
stem vein blackish brown.
Female. Body lengthabout3(cid:2)5mm. Wing length Abdomen. Basal scale palebrown with a fringe of
about 3(cid:2)0mm. yellow hairs. Terga dark brown except 2nd tergum
Head. Nearly as wide as thorax. Frons shiny, pale brown. Terga 6(cid:1)8 shiny. Genitalia. Sternite 8
sparsely covered with golden recumbent hairs and dark with a lot of black hairs on each side. Anterior
erect hairs; frontal ratio 8(cid:2)2(cid:2)6(cid:2)2(cid:2)6(cid:2)0; frons(cid:1)head
gonapophyses triangular in shape, coveredwithseveral
ratio8(cid:2)2(cid:2)33(cid:2)2. Clypeus with a few golden hairs as
microsetae, inner margins widely separated. Genital
well as dark hairs. Antenna composed of 2 + 9
fork with slender sclerotized stem; arm moderately
segments, brownish black except first two segments wide, each with a strongprojectiondirected forwards.
yellowish brown. Maxillary palp greyish brown, with Spermatheca ellipsoidal, sclerotized with reticulate
5segments in proportion of 2(cid:2)2(cid:2)2(cid:2)0(cid:2)7(cid:2)5(cid:2)5(cid:2)6(cid:2)13(cid:2)0; pattern. Paraproct and cercus of moderate size.
3rd segment much enlarged, with elongated sensory Male. Body length about 4(cid:2)0 mm. Wing length
vesicle, which is about 2(cid:2)5 times as long as wide and about 3(cid:2)0mm.
0(cid:2)6 of thelength of respectivesegment. Maxilla with 6
Head. Wider than thorax. Upper(cid:1)eye consisting
inner teeth and 6 outer ones. Mandible with 22 inner
of about 17 vertical and 16 horizontal rows of large
teeth and lacking outer ones. Cibarium unarmed but
facets. Clypeus dark grey with a few black hairs.
with a prominent median projection on posterior Antenna composed of 2+ 9 segments, which are brown
border. except scape and pedicel brownish yellow; 1st
Thorax. Scutum black, covered densely with flagellomere about 2(cid:2)0 times as longas next one.
golden pubescenceaswell as sparseerectblackhairs on Maxillary palp with 5 segments, sensory vesicle
prescutellar area. Scutellum greyish, with sparse small, almostrounded, about0(cid:2)2 times as longas 3rd
golden pubescence and a few black erect hairs.
segment.
Postscutellum dark and bare. Pleural membrane and
Thorax. Scutum black, covered with golden
katepisternum bare. Legs. All coxae and trochanters
pubescenceandsome black erecthairs. Scutellumdark
brown except fore trochanter pale; all femora pale
Thisstudywas supportedbyNationalNaturalScienceFoundationof China (39460073).
Received6 Feb. 2006, accepted28 Apr. 2006.
643
(cid:1) (cid:1)6(cid:1)44(cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) ActaZootaxonomica Sinica动物分类学报(cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) Vol. 31(cid:1) No. 3
grey, with a few golden pubescence and some black with tubercles. Head trichomes 3 pairs, all simple and
erect hairs. Postscutellum black, shiny and bare. short, thoracic trichomes 6 pairs, simple and long.
Pleural membrane and katepisternum bare. Legs. Gill organ. With 14 filaments approximately 3/5
Nearlyas in female except subcosta bare. length of pupal body, arranged ingroupsof 6+ 8from
Abdomen. Nearly as in female. Genitalia. Coxite dorsal to ventral, all filaments with numerous conical
subconical, longer than wide; style small, about 0(cid:2)7 projection.
length of coxite, tapering distally which is abruptly Abdomen. Targa 1 and 2 tuberculate; turgum 2
narrowedon apical third andwitha stout apical spine. with 1long seta and 5short slender setaeon each side;
Ventral plate lamellate, subrectangular in shape, with terga 3 and 4 each with 4 hooked spines on each side;
a distal median margin deep concave and proximal tergum 9with a pair well developed cone(cid:1)like terminal
margin weakly convex, plate body much shorter than hooks. Sterna 4(cid:1)8 each with comb(cid:1)like groups of very
wide, setose medially; arms short well sclerotized, minute spines; sternum 5 with a pair of bifid hooks
divergent, then somewhat convergent apically. submediallysituatedclose together oneachside; sterna
Parameres each with 4 strongly parameral teeth. 6 and7 each with apair of inner bifidand outer simple
Median sclerite rod in shape, gradually widened hooks widely spaced on each side. Cocoon. Wall(cid:1)
towards tip. Dorsal plate formed, double(cid:1)wing(cid:1) pocket(cid:1)shaped, tightly, extending ventrolaterally,
shaped. without a definite anterior margin and anterodorsal
Pupa. Body length about 5(cid:2)0mm. projection.
Head and Thorax. Integument densely covered
Figs(cid:2)1(cid:1)16. Simulium (Montisimulium) jiajinshanense sp. nov. 1. Female cibarium. 2. Female sensory vesicle. 3.
Female genitalia. 4. Coxite andstyle of male. 5. Style in lateral view. 6. Ventralplate. 7. Ventral plate in posterior
view. 8. Ventralplate inlateralview. 9. Mediansclerite. 10. Parameralorgan. 11. Dorsalplate. 12. Cocoonin dorsal
view. 13. Filaments. 14. Larval mandible. 15. Larval head capusulesin ventralview. 16. Larvalanalsclerite.
(cid:1) (cid:1) Mature larva. Body length about 7(cid:2)0 mm. 28(cid:1)32 main rays. Mandible with a large and a small
Cephalic apodome with faint head spots. Antenna mandibular teeth but withoutsupernumeraryserration.
composed of 4 segments in proportionof 7(cid:2)8(cid:2)7(cid:2)2(cid:2)6(cid:2)8 Hypostomium with 9 sharply pointed teeth apically;
(cid:2)0(cid:2)3, with 2 secondary annulations. Head fan with median and corner teeth prominent and inter mediate
July, 2006 张春林等: 四川省山蚋亚属一新种记述 (双翅目, 蚋科) 645 (cid:1)
ones smallest; lateral serration weakly developed from Azerbaijiang, S. ( M.) litshkense ( Rubtsov,
apically; 5 or 6 hypostomial setae on each side lying 1947 ) from Armenia, S. ( M.)
subparallel to lateral margins. Postgenal cleft minute. quattuordecimfiatliatum ( Rubtsov, 1947 ) from
Thoracic and abdominal integument bare. Rectal gills Kazakhstan and S. ( M.) quattuordecimfilum
compound, each of 3 lobes with 12(cid:1)14 finger(cid:1)like Rubtsov, 1947 from Tajikistan.
secondarylobules. Anal scleritewithcompleteposterior The new species, however, can be readily
arms which anterior arms unite individually. Ventral separated from other related species mentioned above
papillae well developed. by several combination characters including the shape
Materials examined. Holotype , reared from of cibarium in the female, the structure of female and
pupa, slide mounted. Jiajinshan, Sichuan Province, male genitalia, the simple cocoon and the filaments
China; woodyvegetation ina small trickle, (31!20∀N, branching in the pupa, and the several characters of
103!20∀E; alt. 3300m), 30 July2004. Leg. ZHANG larva.
Chun(cid:1)Lin. Paratype: 3 # # , 20pupae, 13larvae, all
REFERENCES
slide mounted and same data as holotype.
Distribution. Sichuan Province, China. Chen, H(cid:1)B 2002. Faunistic distribution and geographic divisions of
blackflies in China (Diptera: Simuliidae). Acta Zootaxonomica
Remarks. There are 45 species of blackflies
Sinica, 27 (3): 361(cid:1)368. [动物分类学报]
belonging to the subgenus Montisimulium around the
Chen, H(cid:1)B and An, J(cid:1)Y 2003. The Blackfies of China. (Diptera:
world. Mostof them distribute in Palaearctic regions, Simuliidae). SciencePress, Beijing.
a fewofthemdistribute in Oriental regions. Sofar, 13 Chen, H(cid:1)B, Huang, LandZhang, C(cid:1)L2005. FirstrecordofSimulium
species of blackflies of the Montisimulium which most (Montisimulium ) from Sichuan Province with two new species
(Dipera: Simuliidae). Acta Zootaxonomica Sinica, 30 (1): 175(cid:1)
of them distribute in these areas, such as Tibet and
179. [动物分类学报]
Sichuan, arereportedin China.
Deng, C(cid:1)Y, Zhang, U(cid:1)Z andChen, H(cid:1)B 1993. Three new speices of
This newspecies ischaracterizedbythepupa with Simulium (Eusimulium ) from Lingzi, Tibet China. Sichuan J.
14 filaments, this character was shared by several Zool., 14 (14): 7(cid:1)11.
known species, such as S. (M. ) tibetense Deng et Yankovsky, A. V. 2002. Identification of the Blackflies ( Diptera:
Simuliidae) from Russia and its Adioining Area. Zoologicheskoga
al., 1994. andS. (M.) moxiense Chen et al. , 2005
InstitutaAkademii NaukRussia, Leningrad. 569pp. [Russia]
from China, S. (M.) assadovi (Djafarav, 1956)
四川省山蚋亚属一新种记述 (双翅目, 蚋科)
张春林(cid:1) 陈汉彬
贵阳医学院(cid:1) 贵阳(cid:1) 550004
摘(cid:1) 要(cid:1) 继作者于 2005年首次发现并记述四川省山蚋亚属 美尼亚的 S. (M.) litshkense (Rubtsov, 1947), 哈萨克斯坦
二新种之后, 报道四川省山蚋亚属另 1 新种, Simulium 的 S. (M.) quattuordecimfiatliatum (Rubtsov, 1947) 和塔
(Montisimulium) jiajinshanense sp. nov. (夹金山山蚋)。本 吉克斯坦的 S. (M.) quattuordecimfilum Rubtsov, 1947相
新种与报告自中国的 S. (M.) tibetense Deng et al ., 1993 似, 均具14条呼吸丝, 但新种可依据食窦弓具中突, 两性
(西藏山蚋) andS. (M.) moxiense Chen et al., 2005 (磨西 生殖器的特殊形态, 茧简单和呼吸丝特殊分枝等综合特征和
山蚋), 阿塞拜疆的S. (M.) assadovi (Djafarav, 1956), 亚 上述近缘种相区别。
关键词(cid:1) 双翅目, 蚋科, 山蚋亚属, 新种, 四川省.
中图分类号(cid:1) Q969(cid:2)442(cid:2)9