Asyprocessa ysbaei, Han & Kononenko, 2021

Han, Hui Lin & Kononenko, Vladimir S., 2021, Two new species of Costasensora Fibiger, 2010 and Asyprocessa Fibiger, 2010 from Malaysia and Cambodia (Lepidoptera, Erebidae, Hypenodinae, Micronoctuini) Taxonomic study of Micronoctuini. Contribution VI., Zootaxa 5005 (1), pp. 95-100 : 97

Asyprocessa ysbaei sp. n.

Type material. Holotype: male, Cambodia, Prov. Mondulkiri, Keo Seima Wildlife Sanctuary , 8–10.xi.2011, Y.S. Bae et al., genit. prep. hhl-3589-1, coll. NEFU . Paratype: 1 male, Cambodia, Prov. Siem Rip, Phnom Kulen National Park , 15.ii.2013, Y.S. Bae et al., genit. prep. hhl-3725-1, coll. INU .

Diagnosis. The adult of A. ysbaei superficially is similar to A. spinus ( Fig. 8 ) but differs in the light yellowish-grey colour of the body (in C. spinus it is dark smoky-grey); the forewing is light brownish-yellow (in C. spinus the forewing is sallow, suffused with black to smoky-black); in A. ysbaei the basal area near the costal margin is brown (in C. spinus it is black); the antemedial line is rather indistinct, smoothly rounded (in C. spinus the antemedial line is distinct, waved medially); in A. ysbaei the costal region bears a large dark brown patch between the antemedial and postmedial lines (in C. spinus it is black); the terminal region is dark brown, mixed with pale red (in C. spinus it is black); the reniform is yellowish-white (in C. spinus it is yellow); in A. ysbaei the ground color of the hindwing is light brownish-grey (in C. spinus it is grey).

The male genitalia of A. ysbaei are similar to those of A. wapi ( Fig. 14 ), but differ, in the somewhat broader valvae (in C. wapi the valvae are somewhat narrower and curved; the process of the right sacculus is thick, rather long and curved from midd to apex (in C. wapi it is slightly shorter and straight), left valva bears a large bulge (in C. wapi it bears a small triangular bulge); the ampulla is rounded and mushroom-shaped (in C. wapi the ampulla is slightly swollen); the aedeagus is smoothly incurved (in C. wapi it is bent under the right angle); the vesica with long band of spinules (in C. wapi vesica with smaller band of spinules).

Description. Adult ( Fig. 5 ). Wingspan 9.5 mm. Head. Light greyish-yellow. Thorax and abdomen. More golden yellow than head; abdomenwith brush of pale hairs at termen. Forewing pale brownish-yellow, mixed with brown; basal line a brown patch at costal margin; antemedial line darker than wing ground colour, smoothly incurved, indistinct median line parallel to antemedial line, darker at costal margin; postmedial line smoothly curved, formed by yellowish-white small dots; subterminal line formed by dark yellowish-brown scales, mixed with red, waved; terminal line formed by brown and yellowish-brown scales; fringe yellowish-brown apically, smoky-grey posteriorly; reniform yellowish white, surrounded with halo-like ring; dark brown patch at costal area between antemedial and postmedial lines. Hindwing darker than forewing, grey; its outer margin incurved at M 2; tornal margin rather straight; fringe grey, basally yellowish at base; discal spot smoky-grey, indistinct, ringed. Male genitalia ( Figs 12, 13 ). Vinculum slender, tapering towards apex. Valvae slightly asymmetrical, left valva narrower than right one; right sacculus broad and short, ventral process of sacculus gradually curved, slender; sacculus on left valva rather narrow, long, with bulge 2/3 away from base, ventral process on left sacculus missing. Costa of right valva broad, smoothly curved, distinct basally, integrated with sacculus; in left valva costa narrower, thin, fused with sacculus. Ampulla slightly asymmetrical, shovel shaped, covered with heavy hairs. Juxta weakly sclerotized, irregularly circular-shaped, with narrow triangular fold at upper half. Saccus V-shaped. Aedeagus curved, dorsally weakly sclerotized, and swollen at junction of ductus ejaculatorius; vesica with basal band of spinules.

Distribution. The species is distributed in East Cambodia, Prov. Mondulkiri, Keo Seima Wildlife Sanctuary and Prov. Siem Rip, Phnom Kulen National Park. It inhabits montane semi-evergreen forest zone and occurs in forest meadows with woody shrubs and herbaceous plants. Probably several generations over the year. The specimens were captured by UV light in November and February.

Etymology. The species name “ ysbaei ” is dedicated to the collector of type specimens of the species, Professor Y.S. Bae, a famous Microlepidoptera specialist in the Republic of Korea.

Figures

FIGURES 1–8. Costasensora and Asyprocessa spp., adults. 1. C. fibigeri sp. n., male, Malaysia, Sabah, holotype; 2. ditto, male, paratype; 3. ditto, male, paratype; 4. C. honeyi, male, holotype (after Fibiger 2010); 5. A. ysbaei sp. n., male, Cambodia, Keo Seima, holotype; 6. A. laevi, female (after Fibiger 2010); 7. A. wapi, male (after Fibiger 2010); 8. A. spinus, male (after Fibiger 2010).

FIGURES 9–17. Costasensora and Asyprocessa spp., male (9–15) and female (16) genitalia, distribution map (17). 9. C. fibigeri sp. n., male, Malaysia, Sabah, holotype, gent. prep. hhl-3598-1; 10. ditto, male, Malaysia, Sabah, paratype, gent. prep. hhl-4342-1; 11. C. honeyi, male (after Fibiger 2010); 12. A. ysbaei sp. n., male, Cambodia, Keo Seima, genit. prep. hhl-3589-1, holotype; 13. A. ysbaei sp. n., male, Cambodia, Kulen, genit. prep. hhl-3525-1, paratype; 14. A. wapi, male (after Fibiger 2010); 15. A. spinus, male (after Fibiger 2010); 16. A. laevi, female (after Fibiger 2010); 17. Distribution map of Asyprocessa spp. 1. A. ysbaei sp. n.; 2. A. wapi; 3. A. spinus; 4. A. laevi.