Crasilogia diversisimplex, Schmidt, 2020

Schmidt, Olga, 2020, Australasian genus Crasilogia Warren (Lepidoptera: Geometridae: Larentiinae), Zootaxa 4729 (4), pp. 519-537 : 530-532

Crasilogia diversisimplex sp. nov.

( Figs 11 , 31 , 44, 45 )

Type material. Holotype male, D. N. Guinea [ Papua New Guinea], Hunsteinspitze, Kais.Augustafl. Exp., III.[19]13, Bürgers S.G, 4617 ( MfN). Paratype male, D. N. Guinea [ Papua New Guinea], Hunsteinspitze, Kais. Augustafl. Exp., 1350 m, II.–III.[19]13, Bürgers S.G, 4163 ( MfN).

Diagnosis ( Figs 11 , 31 ). Forewings above with pattern similar to C. dispar , C. flavipennis , and C. simplex , but brown to rusty brown, with ochreous scales, with subbasal band similar to C. dispar but slightly narrower, with a rather long inwardly directed subbasal notch, with median band narrow at the hind margin, edged with white and dull orange wavy lines, with a shallow medial projecting tooth outwards and a short inwardly directed postmedial streak near the costal margin, with a thin wavy white subterminal line with small medial and subapical projecting teeth. Hind wings in males with termen rounded, emarginate posteriorly, slightly darker than in C. dispar , C. flavipennis , and C. simplex , pale ochreous, above with tawny and brownish scales and hairs at the base and hind margin, with hardly distinguishable band of pale brown scales at the termen and a small area of brown androconial scales near tornus.

Description. Labial palpi yellowish with ochreous scales. Legs yellowish to brownish, with narrow rings of lighter scales, hind legs lighter coloured than fore- and middle legs. Abdomen rusty brown to ochreous, above speckled with whitish scales. Wing expanse 38–40 mm (n = 2). Forewings above brown to rusty brown, with scattered ochreous scales, with basal band brown to rusty brown, with ochreous scales at the hind margin, with subbasal band similar to C. dispar , C. flavipennis and C. simplex but with yellowish-ochreous scales, edged with white line, with a distinct triangular, inwardly directed subbasal notch, with median band distinct, rusty brown, with ochreous scales, less oblique than in C. simplex , at the costal margin slightly narrower than in C. flavipennis , edged with thin white, dull orange and yellowish-ochreous wavy lines, with a shallow rounded medial projection outwards slightly broader at base than in C. flavipennis , and a rather small inwardly directed postmedial streak near the costal margin, with discal dot enlarged, rounded, with a thin wavy whitish subterminal line with small medial and subapical projecting teeth speckled with rusty brown scales inwardly towards the dull orange wavy line; underneath patterned like the upper side but much paler, with the hind margin broadly speckled with whitish scales. Hind wings in males more ovoid than in C. simplex , with termen rounded, emarginate posteriorly, slightly darker than in C. dispar , C. flavipennis , and C. simplex , above pale ochreous, with tawny and brownish scales and hairs at the base and hind margin, with hardly distinguishable band of pale brown scales at the termen and a small area of brown androconial scales near tornus; underneath mainly pale ochreous, patterned similar to C. dispar , with a small discal dot, with a thin wavy brownish median line and four thin and very thin wavy postmedian lines less distinct at the hind margin, with a band of brownish scales at the termen.

Male genitalia ( Figs 44, 45 ). Uncus medium sized, broader than in C. simplex , with rounded basal outgrowths smaller than in C. parasimplex , with broad area of sclerotisation proximally; tegumen not elongated, base of tegumen connected to the base of subscaphium through a rhomboid intercalar sclerite; valva somewhat kidney-shaped, slightly protruded and rounded apically, with costa longer than in C. simplex and C. parasimplex , at base with a broad ring of weak sclerotisation flattened dorso-ventrally, not broadening towards the costal margin, rounded outwards, with a distinct basal extension; labides curved, very broad medially, broader but shorter than in C. flavipennis ; vinculum broad, with broad at base, apically rounded dorsal process, and a medium sized anterior hook; saccus a large broad sack; aedeagus relatively small, with a patch of medium sized stout cornuti and fine scobination in vesica.

Female unknown.

Distribution. Papua New Guinea.

Etymology. The species name combines the Latin diversus (different) and simplex (the name of a known species), and refers to the close relationship with C. simplex .

Figures

FIGURES 6–11. Crasilogia spp., wings above: 6. C. dispar, male, syntype, Papua New Guinea, Upp. Aroa R.; 7. C. dispar, female, syntype, Papua New Guinea, Upp. Aroa R.; 8. C. flavipennis, male, syntype, Papua New Guinea, Biagi, Mambare R.; 9. C. flavipennis, female, syntype, Papua New Guinea, Biagi, Mambare R.; 10. C. fulvitincta, female, holotype, Indonesia, West Papua, Angi Lakes, Arfak Mts; 11. C. diversisimplex, male, holotype, Papua New Guinea, Hunsteinspitze, Kais.

FIGURES 28–31. Crasilogia spp., wings underneath: 28. C. simplex, male, lectotype; 29. C. simplex, female (see Note to the paragraph ‘Other material examined’); 30. C. parasimplex, male, holotype; 31. C. diversisimplex, male, holotype.

FIGURES 40–45. Crasilogia spp., male genitalia, diagnostic characters indicated: (40, 42, 44) armature, (41, 43, 45) aedeagus: 40–41. C. simplex; 42–43. C. parasimplex; 44–45. C. diversisimplex.