8 
ZANCLORHACOS; RACASTA; DOLEROPHYLE; DOLICHONEURA. By L. B. Prout. 
venata. 
subshnilis. 
floccosa. 
nigri- 
venaia. 
spatiaria. 
caber aria. 
extendata. 
rhodostida. 
nerisaria. 
Z. venata Warr. (1 b) is much smaller, with the veins broadly darkened. Antennal eiliation of $ sessile. 
Iquitos (type $), Paramaribo (allotype here figured), Peru and E. Bolivia. 
Z. subsimilis Warr. (1 b). Still more like a diminutive uniferata in that the veins are not darkened. 
Costal edge more finely darkened; terminal line slight or wanting. Palpus rather less long. Antenna as in venata. 
Colombia to French Guiana, also from Trinidad; the type from NAY. Venezuela. 
Z. floccosa Warr. (1 b). $ rather rounder-winged than the preceding, with rather shorter palpus, 
otherwise very similar. <$ very distinct in that the costa near the base is fringed with curled, floccous hair, 
while the proximal part of the forewing and the middle of the hindwing bear patches of coarse grey or drab 
scaling. Dutch and French Guiana. 
4. Genus: Zanclorltacos Bastelb. 
Close to Zanclopteryx, perhaps better treated — as in the case of Z. floccosa — as a specialised section, 
but I have not studied the type. $ unknown; $ distinguishable by the presence on the hindwing of along-fringed 
lappet from base to 1 / 3 of abdominal margin, widening distally; perhaps also by the palpus, which is descri¬ 
bed as “very long”. 
Z. nigrivenata Bastelb. (1 b). Distinguishable from Zanclopteryx venata by its much larger size, falcate 
apex and specialised hindwing. “Brazil”, only the type known. 
5. Genus: ISacasta Walk. 
This genus and the six which follow, together with Noreia Walk, and a few other Indo-Australian 
and African genera, should perhaps be regarded as a single large genus, as the structural differences which 
separate them are for the most part very slight. I conserve however, for the present, the classification outlined 
by Warren in his scattered papers and elaborated by myself in Wytsman’s “Genera Insectorum”. In any 
case they form, with Alex and a few other outliers, a very natural group. They differ essentially from the 
Zanclopteryx group in their more robust build, ampler wings, presence of all the spurs on the hindtibia and 
other characters. The face is smooth. The normal venation of the group is: SC 1 of forewing from cell, anasto¬ 
mosing with C, SC 2 from stalk of SC 3—5 , anastomosing with SC 1 and with SC 3—4 , M 1 separate; C of hind¬ 
wing shortly approximated to SC near base, then rapidly diverging, SC 2 not stalked, M 1 well separate. Ir¬ 
regularities will be noticed in their places. Racasta may be known by the shining white wings, without strongly 
falcate apex. Antenna of $ ciliated. Venation normal. 
A. Section Racasta Warr. Palpus short. $ with antennal eiliation very short, hindwing not specialised. 
R. spatiaria Guen. (1 c). The type form of this species has the apex slightly falcate, transverse lines 
slender and very pale, at costal margin weak. Minas Geraes to Rio Grande do Sul and the adjacent part of 
Argentina. — caberaria Walk. (1 c) is perhaps still less falcate-winged, on an average somewhat larger, and 
has the lines stronger, not weakening costally, on the contrary sometimes strengthened, foreshadowing the 
following form, the first two generally with a slight proximal curve anteriorly. Venezuela (type), Colombia, 
Panama, Costa Rica, Mexico. — extendata Dogn. (1 c) is generally larger; lines more or less thickened, costally 
in G, and often in $, forming enlarged blackish spots. Ecuador and Peru. 
B. Section Leucoreas Warr. Palpus less short. $ with eiliation moderate, hindwing beneath with mass 
of hair (partly reddish) between fold and abdominal margin proximally. 
R. rhodosticta Warr. (1 c). The largest species of the group. Named from the underside, on which the 
lines (except the proximal one) are represented by large, dull rosy vein-spots. Bolivia (type) and S.E. Peru. 
6. Genus: i>oler«pliyIe Warr. 
Less pure white than Racasta, the forewing with falcate apex, the <$ antenna shortly pectinate. Palpus 
as long as in the section Leucoreas. Only one species. 
D. nerisaria Walk. (= tendinaria Feld.) (1 c). Scheme of markings quite different from that of Racasta, 
more recalling Leptoctenopsis or especially some old-world Oenochrominae, notably Heteralex. Only known from 
the Amazon; Tring Museum has recently received a short series from Para. 
7. Genus: I>^liclioneiarit Warr. 
Palpus rather slender, upeurved. Antennal eiliation of $ moderate to rather long. Hindwing with cell 
very short (about ]/ 3 ), the median veins in the <$ not modified. Eorewing with distal margin, except at apex, 
straight oi faintly convex. 
