1914.] NATURAL SCIENCES OF PHILADELPHIA. 625 



U. S. National Museum. A very remarkable species on account of 

 venation, and will go in the genus Berchmansus of Navas. 



Leucochrysa apicalis n. sp. 



Pale yellowish, a brown clot under each eye; pal]:)i with dark on 

 penultimate joint; antennae very long, pale, basal joint with a large 

 brown spot above at tip; pronotum much narrower in front, with a 

 dark reddish side line; mesonotum with a dusky spot each side above 

 the fore wings; abdomen and legs pale. Wings with green venation; 

 stigma with dark spot in hind wings, in fore wings indistinct; in 

 hind wings the radial sector is dark for a short distance before stigma, 

 not in the fore wings. In fore wings the gradates, most of the cross- 

 veins in part, origin of the radial sector, divisory veinlet in part, 

 and vein at base of the third cubital cell dark. In hind wings the 

 gradates and some radial cross-veins near stigma dark. Gradates 

 6 and 7 in fore wing, 4 and 5 in hind wing; the inner series as near 

 to radial sector as to outer series. The third cubital cell very much 

 longer than the second; marginal forks two and a half to three 

 times longer than broad. Expanse 28 mm. 



From Rio Pacaya, Peru, August. 



Leucochrysa marginalis n. sp. 



Similar to L. azevedoi Navas, but the gradates all pale, no dark 

 marginal forks, the hind margin of hind wing is dark for most of 

 length, the radial sectors are black for a short distance in both wings 

 and the veinlets above the black portion are also black, the stigma 

 with black basal spot, outer ends of costals, some radial cross-veins, 

 and others in basal part of wing are black, also the origin of the 

 radial sector. Head with a red band under antennae, red stripe on 

 basal joint, and red spot each side on the vertex, basal part of antennae 

 with black line on lower side, pronotum with red band near base, 

 and spots each side, two red spots on front of mesothorax, and two 

 on the scutellum, metathorax marked in the same way, abdomen 

 with red spots on most of the segments above. Venation about as 

 in L. azevedoi, 13-14 gradates, the inner series as near to radial 

 sector as to outer series, and extending basally, the median vein 

 running into the outer series; in hind wings 10-10 gradates. Ex- 

 panse 50 mm. 



From Rio Longo, Bolivia (Fassl). Several of the species placed 

 by Navas in his table of South American Leucochrysa belong to 

 Allochrysa; such are nigriceps, palliceps, and internata. Allochrysa 

 vigoi appears to be the same as A. palliceps. 



