140 
MICROLEPIDOPTERA OF NEW GUINEA 
accessory cell indefinite. Hind wing 3 / s , semiovate, apex pointed, termen 
slightly sinuate below apex, gradually curved elsewhere, cilia almost 1 ; 
2 from before % 3 from angle, 4 remote, shghtly approximated towards 
base, 5 from middle of discoidal vein, 5- — 7 shghtly diverging, stem of 
media indicated, simple, straight, to base of vein 6. 
Fig. 855 : Ectropoceros acrotoma gen. nov., spec, nov., female, head and wing neuration. 
Eighth tergite sclerotized, of broadly conical shape, with two small 
bristly papillae at the top, eighth ventrite weak, forming a blunt lobe 
between concave lateral parts of tergite, with a group of subapical bristles ; 
anapophyses strong, tightly connected with tergite. Ovipositor cutting, 
consisting of three stilettoes : two ventral ones formed by postapophyses 
which are dilated into thin blades, apicahy with serrulate and finely ciliate 
edge, united with each other apicahy and with some 2 — 3 stout ventral 
teeth, apex bifid; dorsal stiletto shorter, slender. Ostium indefinite. 
Ductus bursae simple, gradually becoming wide below. Bursa copulatrix 
ovoid. Signa, two blunt external projections, each with an ovate basal 
plate, forming a short internal horn at its lower extremity. 
Genotype Ectropoceros acrotoma spec, nov., female. 
An interesting novel form, apparently of the Incurvaria- stock, but 
with somewhat degraded neuration: lb simple, no accessory cell in fore 
wing; and with peculiar thickened antennae which character is unique 
in the family. 
Key to the species of Ectropoceros 
1. Fore wing with a straight transverse fascia acrotoma spec. nov. 
Fore wing with an erect-triangular dorsal transverse spot . . . leucosphena spec. nov. 
