Coleophora varisequens

Li, Houhun, 2005, Checklist and new species of the Coleophora salicorniae group from China (Lepidoptera: Coleophoridae), Zootaxa 1060, pp. 37-50 : 41-44

Coleophora varisequens s p. n.

( Figs. 9–16 , 26 )

Type material. Holotype: ɗ, CHINA: Dalad [40.2 N, 110.1 E], Inner Mongolia Autonomous Region, alt. 1300 m, 13.viii.2002, leg. Dandan Zhang and Zhiqiang Li, genitalia slide no. L05047 . Paratypes: 56ɗ, 143Ψ, including three male and four female genitalia preparations.

CHINA, Inner Mongolia: 35ɗ, 92Ψ, 13–14.viii.2002, same data as holotype; 1 ɗ, 1Ψ, Erenhot [43.4 N, 111.6 E], alt. 960 m, 2.viii.2002, leg. Dandan Zhang and Zhiqiang Li; 1ɗ, Qahar Youyi Houqi [41.2 N, 113.1 E], alt. 1410 m, 4.viii.2002, leg. Dandan Zhang and Zhiqiang Li; 8ɗ, 13Ψ, Wuyuan [41.1 N, 108.2 E], alt. 960 m, 17.viii.2002, leg. Dandan Zhang and Zhiqiang Li; 4ɗ, 9Ψ, Dengkou [40.2 N, 107.0 E], alt. 1000 m, 18.viii.2002, leg. Dandan Zhang and Zhiqiang Li; 7ɗ, 28Ψ, Hanggin Houqi [40.9 N, 107.1 E], alt. 1000 m, 20–21.viii.2002, leg. Dandan Zhang and Zhiqiang Li.

Diagnosis. The new species is close to Coleophora sequens Falkovitsh, 1979 , but can be separated from the latter by the male genitalia with over twenty thin cornuti grouped into a comb­like bundle and the female genitalia with the spinulate section of the ductus bursae shorter than the anterior apophyses. The species is also closely allied to Coleophora pallidiptera Li & Zheng, 1998 , but differs from it by the flagellum of antenna basally without rough scales and the dorsal margin of sacculus concave in the male genitalia.

Description. Adult ( Fig. 9 ). Wing expanse: ɗ and Ψ, 9.0–12.0 mm. Head: Densely covered with rough greyish white scales, pale yellow in center portion. Postocular scales greyish white. Labial palpus porrect, rough, greyish white, sometimes tinged with yellow; second segment longer than diameter of compound eye; third segment about half length of second, apex pointed. Scales of haustellum white. Antenna scape with rough pale scales anteriorly, dorsal surface light yellow; basal several segments of flagellum with rough light yellow scales, the rest annulated with white and black. Thorax: Dorsum and tegula light yellow. Upper surface of forewing light yellow mixed with light brown scales; ventral surface uniformly greyish brown; cilia grey. Hindwing greyish brown, cilia greyish white. Legs greyish brown to brown, apical portion of each potion greyish white. Abdomen ( Fig. 10 ): First tergum with eight very large spiniform setae, from middle to both sides becoming smaller; each of the rest terga with a transverse row of smaller spiniform setae, 10–14 in number. Male genitalia ( Figs. 11–14 ) with gnathos elongate, dorsally rounded, apex pointed, beaked. Tegumen wide, gradually elongate and narrowed distal, supported by long and wide ventral arms. Transtilla combined, middle portion very broad, triangular. Valva moderate, costa and ventral margin nearly parallel, apex rounded. Valvula large, sclerotized, basal 1/3 subtriangular, distal 2/3 rounded, outer margin more sclerotized, setose. Sacculus large, with ventral margin straight; apex rounded, with stiff setae; dorsal margin straight, with a large and a very small processes: large process upwardly extending near costa and bent inward; small process thin, about 1/10 length of large one and situated at base of it. Juxtal rods slender, arched; dorsal rod longer and thicker than ventral one, both connected with membrane; annulus distinct, broad, slightly sclerotized; with eleven to fourteen thin cornuti grouped into a slender bundle; outer sheath long, lamina well sclerotized. Female genitalia ( Figs. 15–16 , 26 ) with papillae anales long, apex broad. Posterior apophyses twice as long as anterior apophyses; anterior apophyses slightly longer than sterigma, distinctly thickened. Sterigma subtrapezoid; caudal margin deeply concaved medially, broadly V­shaped, setose; anterior margin slightly concaved. Ostium bursae about 1/4 width of sterigma at middle. Colliculum slightly shorter than sterigma in length, gradually narrowed forwardly. Ductus bursae about seven times as long as length of sterigma; spinulate section broad, longer than three times length of anterior apophyses, spinules small, densely arranged; long median lamina with one coil; anterior section membranous. Corpus bursae small, long ovoid; signum small, elongate, spine slender.

Distribution. China (Inner Mongolia).

Etymology. The specific name is derived from the Latin prefix vari­ (= different), and sequens , referring to fact that the new species is different from Coleophora sequens Falkovitsh.

Figures

FIGURES 9 – 16. Coleophora varisequens sp. n. 9, adult (paratype); 10, abdomen; 11, male genitalia (paratype, slide no. L 05068); 12, phallus complex; 13, male genitalia enlarged; 14, cornuti; 15, female genitalia enlarged (paratype, slide no. L 05078); 16, signum enlarged.

FIGURES 25 – 27. Female genitalia 25, Coleophora parilis sp. n. (paratype, slide no. L 05041); 26, Coleophora varisequens sp. n. (paratype, slide no. L 05078); 27, Coleophora innermongoliensis sp. n. (paratype, slide no. L 05071).