218 LEPIDOPTERA HETEROCERA 
Type of the genus : Not/toterpna crassisquama, Warren (1909). 
Geographical distribution of species. — W. African. 
I. N. crassisquama, Warren. Angola. 
Nothoterpna crassisquama, Warren, Novit. Zool. Vol. 16, p. 111 (1909). 
2. N. fallida (Warren). Angola. 
Agraftochlora pallida, Warren, Novit Zool. Vol. 11, p. 463 (1904). 
173. GeNUs CHLOROSTERRHA, NOV. GEN., PROUT 
Chlorosterrha (Warren, MS.). nov. gen. Prout. 
Characters. — Face smooth. Palpus minute, second joint not rough-scaled. Tongue slender. 
Antenna in c bipectinate with moderate branches (in monochroma and. probably in the type becoming 
rudimentary at apex). Hindtibia in C slender, with four well-developed spurs. Abdomen not crested. 
Forewing with costa straight, except at extreme base and towards apex, apex somewhat rounded, termen 
smooth, very oblique, wing therefore narrow, scaling typically smooth, cell one-half, DC? rather 
strongly incurved, SC! from cell, anastomosing with C and (in type) with SC?, SC? normal, R! well 
separate, R? somewhat above middle, M! well separate; hindwing narrow, costa long. apex rounded, 
termen smooth, little conves, cell one-half, DC? inbent anteriorly, slightly oblique posteriorly, 
C approximated to cell for some distance, gradually diverging, SC? short-stalked, R? from slightly above 
middle of DC, M! separate. 
Early stages unknown. 
The 9 is unknown, unless semialba really belongs to this genus, which is extremely doubtful. 
Itis larger, less narrow (though hindwing much narrower than in Nofhoterbna), somewhat rougher- 
scaled, venation somewhat variable, SC? of forewing stalked to as far as, or beyond SC, R! sometimes 
stalked, R? of hindwing from near R!, Q antenna very shortly bipectinate. It is certainly not an Acollesis, 
by our characterization. Typical CAlorosterrha is entirely distinct from NotAoterbna in shape and facies, 
though with many characters in common. 
Type of the genus : C/ilorosterrka dichroma (Felder) Sterrha (?) dichroma, Felder albantensis, 
Prout t). 
Geographical distribution of species. — 5. Africa, ? W. Africa. 
1. C. dichroma (Felder). Cape. 
Sterrha (?! dichroma, Felder, Reise Novara, Lep. Het. t. 127, f. 20 (1875). 
Omphacodes dichroma (part.), Swinhoe, Trans. Ent. Soc. Lond. p. 552 (1904). 
2. G. monochroma, nov. sp. 2). Prout. Orange River Colony. 
3. C. semialba (Swinhoe) (huj. gen.?). — Pl. 5, Fig. 9. W. Africa, ? Mashonaland 
Acollesis semialba, Swinhoe, Ann. May. Nat. Hist. (7), Vol. 17, p. 555(1906). (var.?). 
1) We have drawn up the diagnosis from a specimen from Grahamstown(presented by the Albany Museum) in coll. Brit. Mus, As we have not 
been able to compare it, side by side, with Felder's type, we state — for the avoidance of possible synonymic complications — that this specimen is the 
actual type-specimen of the genus, and that in the (improbable) event of its not proving conspecific with ZicAroma it shall be known as follows : 
Chlorosterrha albaniensis, »ov. s. — Shape and marking as in ZicAtxoma, Felder, costa of forewing narrowly ochreous, oblique line slightly 
tinged with ochreous, no cell-mark ; structure as given under our generic characters. 
2) Chlorosterrha monochroma, nov. sp. — GO, 26 mm. Face and palpus reddish. Head green, narrowly pale ochreous between the 
antennz. Antennal shaft pale ochreous, pectinations rather long. Thorax and base of abdomen green above, otherwise whitish. Legs ochreous, foreleg 
reddish above. Wings shaped nearly as in the type species, apex of forewing sligbtly more rounded off; forewing bright bluish green, somewhat as in 
Hemistola chrysoprasaria, but a little fuller, costal edge narrowly pale ochreous, unspotted; no markings; fringe green proximally, narrowly white 
distally. Hindwing slightly paler, especially costally, but nowhere white; fringe as in forewing. Underside the same, or very little paler. Bloemfontein, 
S. Aírica (H. F. Wilson). Type in coll. Brit. Mus. Distinguishable superficially from the numerous (and often confusing) unicolorous green S. African 
Hemitheinae by its narrow wings; in AZadinorm$Aax, which is nearly as extreme in shape, the hindwing is white. Structurally the species agrees 
sufficiently with CA/orosferrAa though the palpus is somewhat stronger, and in the forewiag R' is shortly stalked instead of well separate, and M! rather 
more approximated to R? than in the type. 
