20 Annals Entomological Society of America [Vol. IV, 



Formicaleon lethalis (Walker.) 



Specimens from Bagamoyo, Madagascar, Natal, and Mhon- 

 ta, D. O. Afrika. Recorded from various places in East Africa. 



The F. leucospilos Hagen is the same species. 

 Formicaleon lepidus (Kolbe). 



From Langenburg, D. O. Afrika, and Erythra?a, (Petersen 



coll.). 



Nemoleon Navas. 



This genus has but one crossvein before the radial sector 

 in the hindwings; the antennae are not their diameter apart "at 

 base; the first joint of tarsus is about as long as the last joint, 

 and the spurs about as long as this first tarsal joint. The wings 

 are slender, with a single costal series. 



Type — My nucleoli arenarius. 



1. Wings with some dark spots ■• 3 



Wings without dark spots - 



2. Spurs and claws black. kituanus 

 Spurs and claws reddish filiformis 



3. (inter gradates in fore-wings form a prominenl oblique dark stripe pardalice 

 Outer gradates do not form a prominent stripe . .... 4 



I. Pour black spots just behind the radius in the fore-wings, and one at the 



stigma quadrimaculatus 



A black dot at end of anal vein in fore-wings, and one near end of median 

 where it joins the cubitus alcidice 



Nemoleon alcidice n. sp. 



Face pale, a dark brown band over base of antenna?, and two nar- 

 row brown bands on the vertex, made up of conjoined spots; antennae 

 pale, the second joint dark above, the tip also dark; pronotum pale, a 

 brown spot on each side margin; and two black dots on each side, one 

 i in the transverse groove, the other behind it on the hind margin; 

 rest of thorax dark on sides, but only faintly marked in the middle, not 

 plainly on the scutelli; abdomen dull black, last segment slightly paler 

 at tip, all white haired. Legs slender, pale, distinctly dotted with black 

 on the femora and tibia?, and at tips of tarsal joints, claws long, reddish, 

 as also the spurs, which are as long as the first tarsal joint, and this as 

 long as the next three together, apical joint nearly as long as the basal, 

 both black and white bristles on the legs. Wings hyaline; venation 

 pale, interrupted with black, fore-wings with an oblique black mark 

 near end of anal vein, a roundish, black spot near end of median at its 

 connection with the cubitus, one black spot on the union of subcostal 

 and radius, and two beyond on the radius, the outer one the larger; 

 the anal vein pale, but its branches marked with black on the margin. 

 Wings long and slender, acute at tips ; seven crossveins before the radial 

 sector in forewing, nine branches of the radial sector in each wing. 

 Hindwings mostly unmarked. 



Expanse 58 mm. 



From Erythrasa (Kristensen coll.). Type in coll. Petersen; 

 (cotype in Banks coll.); a poor specimen from Duma, Kamerun, 

 June (Berlin Museum). 



