MICROLEPIDOPTERA OF PHILIPPINE ISLANDS 151 



Euhontalocera heliosema, new species 



Figures 217-219, 625 



Male, 16 mm. Head (rubbed) with bluish reflections, vertex purple, 

 side tufts yellow. Antenna purplish bronze, tip slightly mixed with 

 white, scape light ochreous. Palpus purplish, upper half of posterior 

 edge of median segment and terminal segment pale ochreous. Collar 

 yellow with bright blue reflections. Thorax dark purple brown 

 (rubbed). Abdomen black, tergites with faint leaden-greenish bands, 

 posterior halves of segments pale yellow, venter leaden grey, posterior 

 half pale yellow, anal tuft black. Posterior leg purple, femur entirely 

 yeUow and tibia "with a yellow spot on upper half above. 



Fore^^ing lanceolate, dilated, broadest at 3/4, point long, acute, 

 termen hardly ciu-ved, very oblique. Black with strong purple 

 reflections except on broad dull edges to markings. Islarkings bright 

 yellow. A rather slender semiclavate longitudinal median mark from 

 bej'ond base to 1/3 of wing, its anterior end touching a shorter wedge- 

 shaped parallel streak above preceding; a streak along dorsum from 

 well beyond base to before tornus, containing a semioval spot of ground 

 color on 1/4 of dorsum; this streak gently narrowed posteriorly, but on 

 middle of dorsum dilated into a triangle with acute top reaching 

 middle of disc; an elongate-triangular patch on costa occupying less 

 than its 3rd foiu'th, anterior edge little, posterior strongly oblique, top 

 to closing vein; a longitudinal stripe from closing vein, below middle 

 of wing, furcate posteriorly, a narrow line above and beyond it and 

 another, shorter, below it. Cilia (damaged) blackish. 



Male genitaha: Tegumen slender, long, its ventral (forward) part 

 sUghtly compressed below top, probably thus forming the uncus which 

 is otherwise not indicated; top shortly bilobed, with a few small 

 bristles. Saccus elongate V-shaped, well sclerotized. Valva moderate 

 at base, sacculus 1/2, well defined, sclerotized, Avith an apical small 

 hook on top of an emarginate bladelike structure. Cucullus long and 

 slender, gently curved. Anellus lobe strong, moderately long, elongate- 

 triangular and bristly. Juxta small, trapezoidal. Aedeagus slender, 

 straight, slightly dilated at both ends. 



Hindwing and cilia deep blackish broAvn with purple reflections. 



Material examined: Mindanao, Lanao, plains, Kolambugan, 25.V. 

 1914 (A.E. Wileman), 1 d', holotype, genit. shde 5582 (BM). A 

 slender, elegant insect with the appearance of a Heliodinid. 



Atasthalistis Meyrick, 1886 

 Key to the Philippine Species of Atasthalistis 



1. Hindwing orange with a blackish posterior half A. ochreoviridella 



Hindwing entirely blackish A. diacrita, new species 



