MICROLEPIDOPTERA OF NEW GUINEA 
47 
An interesting genus, apparently nearest to Stichotactis Meyrick, from 
Sudan, with which it agrees in neuration of the hind wing, exceptional 
for the family, but differs by long-stalked veins 7 and 8 in fore wing and 
curious palpi of the male. 
Docostoma insignis spec. nov. (figs. 761, 763, 766) 
(J, $ 14.5 mm. Head pale ochreous in male, light grey in female. Antenna 
pale fuscous, paler in female. Palpus in male pale ochreous, externally 
suffused with greyish-fuscous or dark fuscous, in female grey. Thorax in 
male sordid whitish-ochreous, anterior third suffusedly dark fuscous, in 
female grey, tip whitish. Abdomen pale fuscous. Legs whitish-fuscous 
more or less suffused with darker fuscous, anterior leg blackish-fuscous 
above, posterior tibia and tarsus densely and evenly irrorated with 
fuscous grey, tibia with a broad median and a smaller apical rings, tarsus 
with an apical ring on each segment, ochreous-whitish. Fore wing lanceolate, 
apical fourth much narrowed, apex slightly produced, acute, costa hardly 
curved, except at base, dorsum sinuate, prominently rounded beyond base, 
termen appearing slightly concave, extremely oblique, tornus indefinite. 
Pale ochreous-fuscous, in female pale greyish-fuscous. Markings in male 
formed by dark fuscous suffusion; a moderate elongate- triangular spot on 
base of costa reaching to middle of base, edge strongly inwards-oblique ; 
a large elongate-triangular patch on costa from 1 / 3 to before apex, top 
reaching to below centre of wing, continued as an inwardly oblique streak 
to above dorsum at 2 / s ; anterior edge of costal patch slightly outwards- 
oblique, posterior edge strongly inwards-oblique; an ill-defined transverse 
discal streak along closing vein, its lower extremity extended anteriorly 
as a small suffused submarginal streak; an ill-defined cuspidate longi- 
tudinal mark in disc before apex, pointing apicad; female evenly suffused 
with fuscous-grey, without dark markings. Cilia sordid pale ochreous- 
fuscous; around apex somewhat darker fuscous, scales with whitish tips. 
Hind wing pale, whitish-bronze, somewhat darker in female. Cilia pale 
fuscous, appearing pale fulvous in certain lights. 
Tegumen large, angulate at the sides, with long bristles laterally. Uncus 
moderate, curved. Gnathos, a transverse rod with bidentate median 
process. Transtilla modified: an in vert- V-shaped rod, forming in the 
middle a large rising body crowned with two long, stout, acute spines. 
Valva elongate, costa separate, posterior half subclavate, bristly; sacculus 
almost 1, ending in a curved, blunt hook. Vinculum roimded. Aedoeagus 
membraneous, supported dorsally by a long and slender sclerotized rod. 
Cornuti, short spines. (Slide no. 1135 D, holotype.) 
Ovipositor very long, erected, tineoid. Apophyses very long, slender. 
Ostium not modified. Ductus bursae long, narrow, finely tuberculate along 
lower half, coiled. Bursa copulatrix small, ovoid. Signum, one tooth. (Slide 
no. 1036 D, allotype.) 
