Gibberifera obscura Diakonoff, 1964

Naik, Santhosh, Shashank, P. R. & Garg, Shivanshu, 2022, New records of Tortricidae (Lepidoptera) from Himachal Pradesh, India, Records of the Zoological Survey of India 122 (1), pp. 73-82 : 80

Gibberifera obscura Diakonoff, 1964

( Figures 5, 10 , 15 , 20 )

2007. Hynhamia obscurana Razowski & Pelz , ( Hynhamia ), Polskie Pismo Entomol. 76: 25.

2008. Sisurcana obscura Razowski & Wojtusiak, Acta Zool. Cracov. 51B: 21.

2008. Deltophalonia obscura Razowski & Wojtusiak , Genus. 19: 504.

1916. Aethes obscurana Caradja , (Conchylisclathranavar), Dt. ent . Z. Iris. 30: 53.

1919. Aethes lucindana Kennel, 1919 ( Euxanthis ), Mitt.mnch. ent .Ges. 8: 72.

Type Locality: Nepal, Manangbhot ( Pathania et al., 2020) .

Material examined: INDIA: Himachal Pradesh: Palampur (32° 6’ 37.9512’’ N, 76° 32’ 10.4064’’ E, 1290m), 1♂ ,

10.viii.2018, Light trapcoll. Santhosh.

Description: Ocellus well developed. Region of vertex and upper part of vertex clothed with pale silver colored rough scales and remaining area covered by small, appressed, light silver colored scales. Labial palpi medium, second segment sinuate, terminal segment porrect, clothed with whitish silver scales at dorsally and pale grayish in ventral and also base of the palpi. Antenna filiform, covered completely by pale silver scales.

Thorax: Smooth, covered with small appressed silver colored scales. Three pairs of legs, clothed with whitish silver colored scales interspersed with grayish black scales at the base of tibial and tarsal segment.

Wings: Small to medium sized moth, having wing length of 5-6 mm. Forewing subrectangular, elongated without costal fold, clothed with silver colored and grayish black scales. At base and middle of forewing comprises few grayish black strigulae. Terminal end of coastal margin with a small group of grayish black scales gives a spotted pattern and it extended as a grayish black line along the apical margin. Forewing with 12 separate veins. Subcostal arises from base of the wing. R3 and R4 approximate towards base, R4 up to costa, R5 up to termen, R4 and R5 connate basally. R5, M1 and M2 parallel to each other, M3 and CuA1 bent downward, CuP reduced in forewing, discal cell with stem of R4+R5 (chorda) and M stem distinct. A small narrow accessory cell at the apex of discal cell. M-stem run longitudinally and divide discal into two halves. Hindwing clothed with whitish scales at the costal margin and rest covered by brown scales. Hindwing RS and M1 approximate, M3 and CuA1 stalked, CuP rudimentary.

Abdomen: Slender, covered with silvery brown scales.

Male genitalia: Tegumen broad, subtriangular, with roundedshoulders.Gnathosweaklysclerotized.Vinculum reduced. Valva long and broad with constricted distinct neck with a prominent median well sclerotized spine. Sacculus setose. Juxta small and well developed. Cone shaped aedeagus, short with several deciduous cornuti.

Distribution: India (Himachal Pradesh (present study); Jammu & Kashmir). Elsewhere: Nepal and Pakistan ( Pathania et al., 2020).

Remarks: This species closely similar to Gibberifera glaciata, Meyrick 1907 . G. obscura forewing is completely light silver while G. glaciata forewing is dark white ground with dark brownish black band at base, triangular spot at median costal margin interspersed with whitish brown scales, various shaped small black spots all along the apical margin and a triangular spot at anal region. In G. obscura tegument relatively longer and narrow while in G. glaciate tegumen is smaller and broad. In G. obscura relatively valva is broad, well sclerotized juxta and poorly developed vinculum as compared to G. glaciata . In G. obscura hindwing is relatively dark grayish while brown and whitish brown in G. glaciata . Same species have been recently discussed by Horak (2006) and Ganai and Khan (2018).

Figures

Figures 1–10. Adults and labial palp. Adults: 1. Clepsis rurinana Linnaeus, 1758, male; 2. Lumaria probolias (Meyrick, 1907), male; 3. Bactra venosana (Zeller, 1847), male; 4. Bactra furfurana (Haworth, 1811), male; 5. Gibberifera obscura (Diakonoff, 1964), male. Labial palpi, 6. C. rurinana; 7. L. probolias; 8. B. venosana; 9. B. furfurana; 10. G. obscura

Figures 11–15. Forewing and hind wing venation: 11. Clepsis rurinana Linnaeus, 1758, male; 12. Lumaria probolias (Meyrick, 1907), male; 13. Bactra venosana (Zeller, 1847), male; 14. Bactra furfurana (Haworth, 1811), male; 15. Gibberifera obscura (Diakonoff, 1964), male.

Figures 16–20. Male genitalia and aedeagus: 16. Clepsis rurinana Linnaeus, 1758; 17. Lumaria probolias (Meyrick, 1907); 18. Bactra venosana (Zeller, 1847); 19. Bactra furfurana (Haworth, 1811); 20. Gibberifera obscura (Diakonoff, 1964)