Orthophana ( Orthophana ) bidoupensis, Constant & Pham, 2014

Orthophana ( Orthophana) bidoupensis View in CoL sp. nov. Figs 1 View Figs 1-2. 1 A-E, 2, 4.

ETYMOLOGY. The species epithet refers to the type locality: Bidoup-Nui Ba National Park .

TYPE MATERIAL. Holotype ♀ (dissected, right hind wing mounted): Vietnam: [ Coll. I.R.Sc.N.B., Vietnam, Lam Dong prov., Bidoup-Nui Ba N. P., 12°26’N 108°30’E, 21-25.VII.2014, Mal. trap, Leg. J. Constant & J. Bresseel, GTI project, I.G.: 32.779] ( RBINS) GoogleMaps

DIAGNOSIS. The species is easily separated from (1) O. ( Eupharos) tamdaoina by the apical spinose process of the tegmina (absent in tamdaoina ) and the by veins Sc and R of tegmina running separately from the basal cell (fused basally in tamdaoina ), from (2) O. ( Orthophana) spinata by the brown colour of the tegmina (green in spinata ), the margin of tegmina slightly sinuate on apical half (rounded in spinata ) and the hind wings largely infuscate (white in spinata ).

DESCRIPTION.

Measurements and ratios ( ♀; n = 1): LT = 11.9 mm; LTg/BTg = 2.21; BV/LV (LV measured to level of anterior margin of eye) = 1.26; BF/LF (LF measured as the visible part in normal view of frons) = 0.71.

Head. brown. Frons and vertex concave, not separated by a carina, narrow with lateral margins slightly foliaceous ( Fig. 1 View Figs 1-2. 1 A-C). Head semicircular in lateral view with smooth antero-ventral angle ( Fig. 1 A View Figs 1-2. 1 ). Posterior margin of vertex slightly carinate and curved ( Fig. 1 C View Figs 1-2. 1 ). Lateral carinae of frons slightly projecting laterally then curved internally in obtuse angle before clypeus ( Fig. 1 B View Figs 1-2. 1 ). Frontoclypeal suture transverse, deeply grooved ( Fig. 1 B View Figs 1-2. 1 ). Clypeus strongly convex, not carinate, much longer than broad ( Fig. 1 B View Figs 1-2. 1 ). Ocelli very small. Scape ring-shaped; pedicel subcylindrical, about 1.5 times longer than broad ( Fig. 1 B View Figs 1-2. 1 ).

Thorax. pronotum brown, smooth with anterior margin strongly curved and posterior margin straight ( Fig. 1 A, C View Figs 1-2. 1 ). Paradiscal fields of pronotum wide behind eyes ( Fig. 1 A, C View Figs 1-2. 1 ). Paranotal lobes of pronotum elongate and broad, without carina ( Fig. 1 A View Figs 1-2. 1 ). Mesonotum brown with yellow dots on lateral fields; median and lateral carinae smooth, median carina narrowly yellow ( Fig. 1 C View Figs 1-2. 1 ).

Tegmina. crescent-shaped without hypocostal plate, brown with minute yellow spots, some bigger yellow spots along veins and black-brown marking at apical third between veins Cu 1 and M 1 ( Fig. 1 A, C View Figs 1-2. 1 ). Costal margin slightly sinuate and narrowly marked with yellow and black-brown alternately on apical half ( Fig. 1 A View Figs 1-2. 1 ). Apex with tooth-shaped spine formed by fusion of veins Cu 1+2 and M 2 ( Fig. 1 A, C View Figs 1-2. 1 ). Costal area broad ( Fig. 1 A View Figs 1-2. 1 ). Clavus slightly surpassing 2/3 of tegmen length, closed ( Fig. 1 A, C View Figs 1-2. 1 ).

Venation: ( Fig. 1 A, C View Figs 1-2. 1 ) C visible to 2/3 of tegmen length, densely furcate; Sc and R running separately from basal cell, simple, subparallel; M furcate at basal third; Cu furcate after half of tegmen; Cu 2 fused with costal margin after clavus and with Cu 1 before apex; A 1 and A 2 fused at half of clavus.

Hind wings. ( Fig. 1 D View Figs 1-2. 1 ) pale yellow, infuscate in middle basally and largely infuscate apically. Well developed, bilobed apically. Costal margin concave with coupling lobe after middle.

Venation: see Fig. 1 D View Figs 1-2. 1 .

Legs. elongate and slender. All tibiae with strong longitudinal carinae. Metatibiae with one anteapical lateral spine and 8-9 apical spines. Metatarsomeres with long setae ventrally; first and second with 2 strong lateral spines, first longer than second and with 10 small ventral spines arranged in arc ventrally.

Genitalia ♀. ( Fig. 1 E View Figs 1-2. 1 ) anal tube elongate and narrow, pointed apically, sinuate in lateral view with apex strongly curved ventrally. Gonoplacs subpentagonal with dorsal margin concave with a straight part in middle in lateral view. Apical margin of gonoplacs with numerous minute teeth.

BIOLOGY. The holotype was collected with a Malaise trap in moist evergreen mountain forest ( 1400 m asl.). The biotope around the trap is illustrated Fig. 2. View Figs 1-2. 1

DISTRIBUTION. Recorded from the southern part of Central Vietnam, Dalat Plateau ( Fig. 4 View Figs 4-5. 4 ).