FAM. GEOMETRID/E 119 
Comibaena rhanisaria, Hübner, Verz. bek. Schmett. p. 284 (1826 ?). 
Phalaena rhanisarta, Verloren, Cat. Lep. Ins. Crameri, p. 268 (1837). 
Geometra (?) Yhanis, Walker, List Lep. Ins. Brit. Mus. Vol. 22, p.604 (1861) 
Comibaena vhanis, Móschler, Verh. Zool.-bot. Ges. Wien, Vol. 31, p. 404 
(1881). 
Pyrochlora rhanis, Warren, Novit. Zool. Vol. 2, p. 90 (1895). 
78. GENUS TACHYCHLORA, NOV. GEN., PROUT 
Tachychlora, nov. gen. Prout. 
Characters. — lace smooth. Palpus in both sexes moderate, second joint strongly rough- 
scaled, third joint not elongate. Tongue developed. Antenna not long, with moderate tuft of scales at 
base, in both sexes bipectinate to beyond one-half, apical end very shortly ciliated. Pectus strongly 
hairy. Femora rough-scaled to somewhat hairy. Foretibia short, well tufted (Pl. 5, Fig. 19). Hindtibia 
with median spurs rudimentary, terminals extremely unequal, no process, hindtarsus considerably longer 
than tibia. Abdomen not crested. Frenulum present in both sexes, from before slight costal expansion. 
Forewing with costa slightly arched, apex acute, subfalcate, termen nearly straight, faintly concave, 
tornus prominent, cell short, produced apically, DC incurved, SC! free (anastomosing with C in uricfia), 
SC? normal, R! stalked, M! connate or approximated; hindwing with costa rather short, the other 
margins long and rather straight, apex moderate, rounded, tornus prominent, cell short. DC incurved, 
C approximated rather shortly to cell, rapidly diverging, SC? stalked, M! stalked, perhaps sometimes 
connate (separate in urtcka). 
Early stages unknown. 
Perhaps related to ZZodochlora (especially exquisita), somewhat agreeing in coloration, in the 
partial atrophy of the median spurs, etc. But as it seems still more closely connected, both in shape 
and structure, with TackypAyle — scarcely differing essentially except in the presence of the Q frenu- 
lum — we have thought it better to place it here. The hindwing is similar to that of the preceding 
genus, but typically still more produced to tornus; the forewing tends to assume the falcate form of 
Tachyphyle. The shape is, however, less characteristic in some species which we provisionally refer here. 
Tyne of the genus : Tachychlora lepidaria (Móschler) — Comibaena lepidaria, Móschler. 
Geographical distribution of species, — Neotropical. 
I. T. lefidaria (Móschler). — Pl. 4, Fig. 12. Guianas, Colombia. 
Comibaena lepidaria, Móschler, Verh. Zool.-bot. Ges. Wien, Vol. 31, p. 404, 
t. 17, f. 14 (1881). 
2. T. subscripta (Warren) (prac. var. vel syn. ?). Venezuela. 
Comibaena subscripta, Warren, Novit. Zool. Vol. 4, p. 424 (1897). 
3. T. silena (Schaus). S. E. Brazil. 
Nemoria silena, Schaus, Trans. Amer. Ent. Soc. Vol. 27, p. 252 (1901). 
4. T. uricha (Kaye) (huj. gen. ?). Trinidad, Surinam. 
Dichorda uricha, Kaye, Trans. Ent. Soc. Lond. p. 147, t. 6, f. 6 (1901). 
Comibaena flavicoma, Warren, Proc. U. S. Nat. Mus. Vol. 30, p. 415 (1906) 
(nov. syn.) 1). 
5. T. flavidisca (Warren). Peru. 
Comibaena flavidisca, Warren, Novit. Zool. Vol. 11, p. 20 (1904). 
6. T. subaurea (Warren) (huj. gen. ?). Peru. 
Comibaena subaurea, Warren, Novit, Zool. Vol. 14, p. 201 (1907). 
1) We have not seen Warren's type, but from the description we judge the synonymy certain 
