POLIOTHRIPA; SEBAGENA. By Dr. M. Dratjdt. 
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abdomen bears small tufts on the basal segments. Fore wings narrow, apex rounded. Fore wing with long nar¬ 
row appendicular cell. Hindwings with normal neuration. Only 1 species: 
L. purpurascens Schs. (56 a). Body violaceous grey. Collar and scapulae with fuscous edge. Forewings purpuras- 
violet-fuscous with black striations. Stigmata with ochreous yellowish centres and red-brown surrounds, reni- 
form protracted outwardly to a point. In centre of inner margin a narrow cuneiform grey streak. The dark 
broAvn postmedian line is edged with grey on both sides at costa, but only outwardly at inner margin, it has 
several acute dentations. Subterminal line is yellowish white with black streaks anteriorly on costa and at inner 
margin. Fringes brown with yellowish spots. The whitish hindwings are dusted with brown, the interstices 
between the veins are somewhat transparent, black and white streaks before the anal angle. Costa Rica and 
French Guiana. 
5. Genus: Polfothripa Hmps. 
Resembles the preceding Genus, but proboscis is fully developed, frons with a conical process. Thorax 
scaly and without a tuft. Otherwise everything as in Lophosema. Only 1 species: 
P. ameria Drc. (56 a). The whitish body admixed with brown and black. Forewings whitish, bestrewn ameria. 
with brown-black. Antemedian line double, postmedian simple, both commencing in heavily marked spots on 
costa. Reniform stigma is a black crescent with white outline; the black subterminal line is indistinctly double, 
distally of it a blackish nebulous spot between veins 4 and 3. Fringes with brown and white checks. Hindwings 
white, brownish in marginal half and on veins. Guatemala. 
6. Genus: Setoagena Wkr. 
Proboscis absent. Palpi long like in the preceding Genera. Thorax clothed with scales and hairs and 
with open tufts anteriorly and posteriorly. Abdomen with dorsal tufts. Forewings with rectangular apex, 
margin faintly undulate, neuration as in preceding. Several medium large species. According to Hampson, 
the Genus that hitherto was known as Pucialia Wkr., should now be known as Sebagena Wkr. 
Type: S. furcifera Wkr. 
S. argentea Wkr. (56 b). Body and forewings grey-white with brown scales and striations. A black- argentea. 
brown streak proceeds from costal base below mediana to postmedian line and a second one parallel thereto 
from before centre of costa to discal fold, where it meets a similar oblique band proceeding from apex. Both 
longitudinal stripes outwardly have a metallic green sheen and there are a few green scales also in centre of 
inner margin. The whitish hindwings are tinged with brown, which is heavier in marginal region. Honduras. 
S. furcifera Wkr. (56 b). Body and forewings grey-white admixed with purplish brown. A black streak furcifera. 
from costal base, where vein 2 arises, divides into an upper and a lower branch. A brownish costal shade indicates 
antemedian transverse line, the postmedian is black-brown and partially double. A black dot in centre of cell, 
a small crescent at disco-cellular. Subterminal line white and dentate. Hindwings transparent white, veins 
and margin brownish. Mexico, Honduras, Costa Rica, British and French Guiana. 
S. mariva Dogn. (= cristata Drc.) (56 b). Like argentea this species has metallic green streak-like scaling, mariva. 
but only the lower of the two black-brown longitudinal streaks is present. On the other hand there is a distinct 
double antemedian transverse line. Hindwings as in argentea. Costa Rica, West Colombia, Venezuela and Peru. 
S. chlorographa Dogn. (56 b). Forewings brownish white, admixed with scattered deeper brown. A. chlorogra- 
stripe in centre of inner margin, a short stripe below base of cell, a spot at end of cell and an oblique stripe Th¬ 
under it, are all green. Antemedian transverse line is merely indicated. Orbicular stigma with yellowish centre. 
The dentate postmedian line is black with white inner edge, the subterminal line is white, dentate with black 
streaks subapically before and behind it. Hindwings transparent white, brownish on veins and at margin. 
Fringes white. French Guiana. 
S. acronyctoides Schs. Palpi ochreous whitish with lateral black streaks at base. Body whitish grey acronydoi- 
admixed with black. Vertex and collar black in centre. Forewings white-grey, silvery behind the basal area, ^ cs • 
the latter peppered with black. Anterior transverse line fine, black, undulate, excurved with a straight bold 
black line distally; it proceeds obliquely and does not extend to inner margin, above it there is a subcostal black 
streak, a small spot in the cell and another below it. A slate-grey shade extends above median nervure to beyond 
the cell. A black spot on disco-cellular that is dentate inwards proximally. Postmedian line black, curved 
around the cell, undulate from vein 3 to inner margin. Distally of it a grey-brown shade from vein 3 to 7, thence 
obliquely to costa. Subterminal line irregularly white, peppered with black distally on costa. Black dots at 
margin in interstices between the veins. Fringes with darker spots. Hindwings semi-transparent white, yellowish 
at costa. Wing expanse: 43 mm. New Freiburg. 
S. poliopepla Hmps. (56 c). Forewings grey, suffused with brown except at base and in marginal area poliopepla , 
and peppered with black. Basal area remains a purer whitish. Transverse lines black, the postmedian double, 
