FAM. GELECHIADJE 99 
Remarks. — Though varying considerably in the development of the rough scaling of palpi, 
these species are naturally associated together. The genus represents an archaic form of this group, 
probably indicating the origin of Nothris, Gelechia and Platyedra. 
Geographical distribution of species. — Represented by scattered species through the 
Southern hemisphere, presumably. remnants of a larger number. 
Larva unknown. 
1. A. achyrota, Meyrick, Trans. N. Zeal. Inst. Vol. 18, p. 170 (1886). New Zealand. 
2. A. acrodactyla, Meyrick, ibidem, Vol. 39, p. 118 (1907). New Zealand, 
3. A. fycnodes, Meyrick, Ann. Transv. Mus. Vol. 2, p. 17, pl. 5, f. g(1911). — Transvaal. 
4. A. viatrix, Meyrick, Zool. Med. Leid. Vol. 6, p. 165 (1921). Java. 
5. A. ptyoptera, Meyrick, Trans. N. Zeal. Inst. Vol. 18, p. 171 (1886). New Zealand. 
6. A. fraesignis, Meyrick, Trans. Ent. Soc. Lond p. 175 (1913). Peru. 
Group 4 (Anacampsis type) 
In this group the labial palpi have the second joint characteristically smooth beneath, and those 
forms which in other respects are most like Gelechia and its allies can always be separated from them by 
this character; but there are also exceptional genera (as Semnostoma and Ethirostoma) in. which the palpi 
have the second joint tufted or roughly haired beneath. The singular fine black and white transverse 
ribbing of this joint displayed in many. species of Comfsolechia and certain other genera is confined to this 
group. Instead of the dark rings of the previous group, the terminal joint of palpi tends to be marked 
with longitudinal lines. In the forewings the apex shows a general tendency to be hooked or falcate, 
sometimes very pronounced; vein 2 is usually separate and remote, but in the earlier forms sometimes 
stalked with 3; and vein 7 usually runs to costa when present, but in the earlier forms sometimes to apex, 
and is rather frequently absent (coincident with 8). In the hindwings veins 3 and 4 are normally connate, 
6 and 7 connate or stalked; and rather frequently there is a cubital pecten (fringe of hairs on lower 
margin of cell towards base) which is not found elsewhere in the family except in the Dichomeris group, 
and is undoubtedly evidence of phylogenetic relationship with that group, supported by the other 
structures noted above as primitive in the group. This group contains the most ornamental and highly 
decorated members of the family, many of the tropical species being adorned with bright-coloured or 
metallic markings; these probably fly in sunshine. The greatest development of the group is in South 
America, which abounds in genera and species; there is also a marked but smaller development in the 
Indian region; elsewhere the group is not prominent. 
102. GENUS THYRSOSTOMA, MEYRICK 
Thyrsostoma, Meyrick, Journ. Bomb. Nat. Hist. Soc. Vol. 17, p. 736 (1907). — Type : T. glaucitis, 
Meyrick. 
Characters. — Head smooth; ocelli posterior; tongue developed. Antennae 3/4, in f modera- 
tely or strongly ciliated, basal joint very long, without pecten, second joint also often enlarged and 
elongate. Labial palpi very long, recurved, smooth, second joint in &' with expanded fringe or long 
expansible tuft of hairs enclosed in a furrow beneath, terminal joint as long as second or longer, 
sometimes in cf thickened, more or less pointed, in Q slender, acute. Maxillary palpi rudimentary. 
Posterior tibiae with three expanded whorls of stiff scales. Forewings with r5 furcate, 2 from towards 
