Epichostis termitruncatula Wang, 2009

Yuan, G. X. & Wang, S. X., 2009, Checklist of the genus Epichostis Meyrick (Lepidoptera: Xyloryctidae) of the world, with descriptions of 11 new species from China, Journal of Natural History 43 (35 - 36), pp. 2141-2165 : 2153-2154

publication ID

https://doi.org/ 10.1080/00222930903034957

persistent identifier

https://treatment.plazi.org/id/44439A38-E525-FFAF-F7D9-FE94FD31F916

treatment provided by

Felipe

scientific name

Epichostis termitruncatula Wang
status

sp. nov.

Epichostis termitruncatula Wang , sp. nov.

( Figures 2E View Figure 2 , 3E View Figure 3 , 4A View Figure 4 )

Holotype

Male , Daozhen County (28°53′ N, 107°36′ E), Guizhou Province, 1370 m, 25 August 2004, leg. Yunli Xiao, genitalia slide No. YGX07109. GoogleMaps

Paratypes

1 male, same data as for holotype GoogleMaps ; 1 male, 1350 m, 26 August 2004, other same data as for holotype GoogleMaps ; 1 female, 1350 m, 24 August 2004, other same data as for holotype GoogleMaps .

Description

Adult ( Figure 2E View Figure 2 ). Wing expanse 16.0–17.0 mm. Head yellow-white, mixed with grey-brown tufts on posterior area and on lateral side. Antenna with scape fuscous on dorsal surface, white on ventral surface; flagellum pale grey yellow, with fuscous annuli on dorsal surface. Labial palpus white; second segment with basal threefifths brown on outside, bearing a black spot subapically; third segment black near base and apex, tinged with yellow distally. Thorax dark brown, white on posterior margin. Tegula deep brown, edged with white. Fore wing ground colour greybrown; costal margin straight, orange, deep grey basally; termen somewhat straight, concave slightly below apex, dark brown; ventral margin with a black spot at base; a large, diffused black patch extending from near base to end of cell, exceeding fold ventrally; cilia pale white. Hind wing pale brown, black at apex; cilia grey-white. Fore leg yellow-white; tibia with scattered brown scales on outer surface; tarsus pink, clothed with long pink hairs, dark brown on outer surface, black on end. Mid- and hind legs yellow-white, with black spots or dispersed brown scales on outer surface; tarsus with white and black rings distally. Abdomen pale yellow.

Male genitalia ( Figure 3E View Figure 3 )

Uncus long and thin, pointed at apex. Gnathos arched backward medially, forming a small rounded prominence, a pair of more strongly sclerotized claw-like processes from median prominence laterally. Valva elongate oval, apex truncate; costa arched medially, concave at base; dorsoproximal process somewhat oval, with setae. Sacculus as long as costa, narrow, slightly concave near base. Juxta shield-like. Aedeagus stout, apex obliquely pointed; cornutus invisible.

Female genitalia ( Figure 4A View Figure 4 )

Papillae anales somewhat square, bluntly rounded on posterior margin. Apophysis anterior slightly longer than half length of apophysis posterior. Ostium bursae broad, more or less triangular. Ductus bursae long and slender, membranous, densely with granular processes; antrum sclerotized weakly; ductus seminalis from near base of ductus bursae. Corpus bursae elongate oval, about one-third length of corpus bursae, densely granulous; signum located at anterior one-third of corpus bursae, strongly sclerotized, with two pairs of thorn-like processes of different shape and size.

Diagnosis

The new species is similar to E. leptorthra Meyrick , but can be distinguished by the male costa arched strongly, the apex of valva truncate, and the sacculus concave near base dorsally. In E. leptorthra Meyrick , the costa is arched slightly, the apex of valva is rounded, and the sacculus is straight dorsally.

Etymology

This specific name is derived from the Latin prefix term - (= terminal) and truncatulus (= truncate), referring to the valva truncate at apex.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Lepidoptera

Family

Oecophoridae

Genus

Epichostis

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