72 
MICROLEPIDOPTERA OF NEW GUINEA 
2. Hind wing with vein 4 absent ■» 
Hind wing with all veins present 5 
3. Fore wing with vein 8 absent Agriothera Meyrick 
Fore wing with vein 8 present ^ 
4. Palpus short, slender, with median segment shortly rough-haired beneath 
Euchoptila Turner 
Palpus long, median segment smooth-scaled below . . . Telethera Meyrick 
5. Eyes in male normal; hind wing with veins 3 and 4 stalked 
Ghalcoteuches Turner 
Eyes in male separated in a small upper and an enlarged lower part by a pecten 
of hair-scales; hind wing with veins 3 and 4 connate . Am/phithera Meyrick 
Amphithera Meyrick, 1892 
Ampliithera Meyrick, 1892, Proc. Linn. Soc. N. S. Wales, vol. 17, p. 97. Exot. 
Microl., vol. 1, p. 154, 1913. Turner, Proc. Linn. Soc. N. S. Wales, vol. 38, p. 223, 
1913. 
Zonops Turner, 1900, Trans. Roy. Soc. S. Austral., vol. 24, p. 17. Meyrick, 
Gener. Ins., fasc. 133, pp. 2, 8, 1912. Exot. Microl., vol. 1, p. 154, 1913. 
The species recorded below show a striking sexual dimorphism. Attri- 
bution of sex partners to each other was not easy; the names of the 
collecting localities were of little use for this, because most species have 
been captured at more than one camp, but the colouring of the legs appears 
to be a good guide. The females are distinctly smaller than the males. 
Male genitalia little sclerotized. Tegumen narrowed. Uncus bifid or 
bilobed, its articulation with tegumen indefinite. Anus, a long tube. Socii 
absent. Gnathos with arms sometimes dilated in middle, hook curved, 
rising. Transtilla paired, arms broad, narrowed medianly. Vinculum 
moderate. Saccus rather short, stout. Valva ovate, simple, sacculus often 
developed as a thick basal pad and always with a dense pencil of hair-scales 
(corema). Aedoeagus long, very slender. 
Ovipositor tortricoid ; lobes erect, thickened, haired. Anapophyses short. 
Ostium small, simple. Ductus bursae simple. Bursa copulatrix ovoid. 
Signum, a subconical hook with a broad base, greatly differing from the 
quadruple stellate signum of the Yponomeutidae, or signum is absent. 
Key to the Papuan species of Amphithera 
1. Males ^ 
Females ® 
2. Fore wing with apical fourth occupied by a silvery-white patch 
choanogena spec. nov. 
No such patch 3 
3. Fore wing strewn with bluish-white scales poliochlamys spec. nov. 
Fore wing without such scales 4 
4. Tegula coppery-violet, apical half silvery-white . . . .tyriochalca Meyrick 
Tegula glossy dark fuscous 5 
6. Hind wing unicolorous fuscous -bronze personata spec. nov. 
Hind wing greyish-white, costa, dorsum and apical third olive-bronze-fuscous 
eulampra spec. nov. 
