Ypthima shimai, Sharma, 2019

Sharma, Narender, 2019, Reporting of two new species of Genus Ypthima Hübner (Lepidoptera: Nymphalidae) from Myanmar, Records of the Zoological Survey of India 119 (2), pp. 95-102 : 96-97

1. Ypthima shimai sp. nov.

Adult(Male):Frontoclypeal area of head studded with white and brown hair and scales; eyes, medium-sized, reddish brown, glabrous; labial palpi obliquely directed upwardly, three segmented, middle and basal segment closely appressed with brown and white hair and scales, middle segment longest, distal segment acuminate and sparsely covered with white and black scales and hairs; antenna 7.0 mm, club slender, black, nudum present between base of the flagellum and base of the club, the flagellum black with white spots at the base of each segment; foreleg reduced strongly, femur longer than tibia, densely covered with brown and white scales and hair, meso and meta legs well developed, femur longer than tibia, tarsus five segmented and clawed; ground colour of upperside drak brown; forewing upperside with black, bipupilled, yellow-ringed, more or less rounded, subapical ocellus, inner and outer discal fasciae obscure, submarginal fascia dark and distinct, brand long, broad and prominent, underside ochreous white, striated with brown, ocellus as above but yellow ring more prominent and broader, inner discal fiscia ill-defined, outer discal fascia and submarginal fascia distinct; hindwing upperside with inner and outer discal fascia ill-defined, submarginal fascia distinct and dark, ocellar area between outer discal fascia and submarginal fascia slightly paler, two unipupilled, almost equal sized, medium-sized ocelli present in spaces in Cu1a and M 3, two minute ocelli may present in 1b, underside pale ochreous white with less brown striations, inner discal fascia obscure, outer discal fascia and submarginal fascia less prominent, six black, yellow-ringed, unipupilled ocelli arranged in echelon, two in Rs and M 1, two in M 3 and Cu1a and two in Cu1b, ocelli in Cu1b smallest.

Venation ( Figures 1-2 ): Forewing cell less than half the length of wing, vein R 1 arising beyond the upper angle of the cell, vein M 2 equidistant between veins M 1 & M 2, udc oblique and minute, mdc slightly incurved, ldc longer and almost straight than others; cell hindwing more than half the length of wing, vein Cula before the lower angle of the cell, h vein (humeral vein) more or less T-shaped.

Upperside abdomen dark brown, covered with fuscescent scales and below light -brown scales present.

Wing Expanse: Half: Male: 18.00 mm.

Adult (Female): Not studied.

Male genitalia ( Figures 3 -8): Tegumen dorsally broad at base, gradually narrowed posteriorly with slightly bulged distal portion, in lateral view, vinculum longer than tegumen in height, with broad membranous incision on its anteroventral margin; uncus dorsally gradually tapering towards apex, shorter than tegumen, in lateral view weakly curved ventrally with narrow membranous slit at its base; fenestrula represented by small, membranous, oval spot; appendix angularis rather broad, strongly curved inward, gradually tapering towards apex; vinculum weakly inwardly curved;saccus less than 1/3 x as long as ring,tubular,narrow at apex; valva broader at middle and gradually tapers towards both the ends, costa long with small flap-like costal process and continues to ampulla and harpe, sacculus long and narrow, forked in dorsal view distaliy, sparsely setosed; aedeagus dorsally almost straight, strongly curved dorsally in lateral view, subzone smaller, ductus entering dorsad; juxta V-shaped, moderately sclerotized.

Material examined: Holotype: ♂, Myanmar, Shin Loushai ,

28.ii.1880 (Regd no. 7213/H90, de Niceville collections.

Paratype: Myanmar, Shin , Loushai, 1♂, 28.ii.1880 (Regd.

no. 7212/H9), de Niceville collections.

Etymology: The species is named in honour of Dr. Hiroshi Shima, Biological Laboratory, college of General Education, Kyushu Univeristy, Ropponmatsu, Fukuoka 810, Japan for his contributions in the taxonomy of the subfamily Satyrinae ( Lepidoptera ).

Remarks: This species is studied from the old de Niceville collections housed at Zoological Survey of India, Kolkata. Ypthima baldus is closely related to the new species however it differs from the new species as given below:

Figures

Figure 1. Ypthima shimai sp.n.: 1. Venation of forewing 2. Venation of hindwing 3. Male genitalia (lateral view) 4. Valva (Inner view) 5. Dorsum (dorsal view) 6. Juxta (Dorsal view) 7. Aedeagus (dorsal view) 8. Aedeagus (lateral view).

Figure 2. Ypthima shirozui sp.n.: 9. Venation of forewing 10. Venation of hindwing 11. Male genitalia (lateral view) 12. Valva (Inner view) 13. Dorsum (dorsal view) 14. Juxta (Dorsal view) 15. Aedeagus (Lateral view) 16. Aedeagus (dorsal view).

Figure 3. Ypthima baldus (Fabricius): 17. Male genitalia (lateral view) 18. Valva (Inner view) 19. Apex of valva (dorsal view) 20. Dorsum (dorsal view) 21. Juxta (Dorsal view) 22. Aedeagus (lateral view) 23. Aedeagus (dorsal view).