38 PROCEEDINGS OF THE NATIONAL MUSEUM vol.71 



require new generic names. All (except parallela) have veins 11 and 

 12 of fore wing separate, and all (except alleni, parallela, and 

 herthellus) are without ocelli. The only existing genus with these 

 characters is Doratoperas Hampson ; but this has short labial palpi : 



Diatraea paralJela Kearfott. We make this the type of the new 

 genus Almyiogordia. 



Diatraea differ entiaUs Fernald. We make this the type of the new 

 genus Diatra£nopsis. 



Diatraea idalis Fernald. Referred to Diatraenopsis. 



Cramhus comptulataHis Hulst. We make this the type of the new 

 genus Occidentalia. 



Diatraea alleni Fernald. Referred tentatively to Platytes. Its 

 genitalia are more like those of Diatraenopsis; but on other characters 

 it agrees better with Platytes. 



Diatraea herthellus Schaus. Referred to Chilo (sens. lat.). 



ALAMOGORDIA, new genus 



Front flat and smooth. Ocelli present. Labial palpi long, porrect, 

 down-curved, extending for twice the length of the head. Maxillary 

 palpi slender, slightly tufted with linear scales. Male antennae 

 slightly thickened. Fore wing long and narrow; vein 2 from long 

 before angle of cell, the vein angled; 4 and 5 separate, from angle 

 of cell; apex of cell rounded; 6 from below it; 7 appearing also 

 below; 8 and 9 stalked from apex; 10 approximate; 11 anastomosing 

 with 12. Hind wing with 3 not far before angle of cell ; 4r-5 rather 

 shortly stalked ; 6 from apex of cell ; 7-8 anastomosing. 



Male genitalia with vinculum narrowly and elongately triangular. 

 Harpe undivided, elongately triangular, evenly tapering to apex; 

 costa finely spined on basal half, otherwise simple. Uncus moder- 

 ately broad, with apex bluntly rounded (a somewhat broadened 

 hook). Gnathos unspined. Anellus a flattened heart-shaped plate 

 with a central incurvation, but without produced lateral arms; juxta 

 detached. 



Female genitalia unknown. 



Abdomen of male without lateral tufts on second segment. 



In genitalia most closely resembling Hemiplatytes^ from which it 

 differs in the shape of the harpe and the anellus, characters that are 

 of hardly more than specific value. The genus, however, is readily 

 distinguished from Hemiplatytes by its hind wing venation and 

 the presence of ocelli. From Haainbachia, which it most resembles 

 otherwise, it is separable on wing shape and genitalia. 



Genotype. — Diatraea parallela K earfott. 



