146 PROC. ENT. SOC. WASH., VOL. 20, XO. 7, OCT., 1918 







One specimen in the U. S. N. M., apparent ly the unique male 

 type. Collected on the island of St. Vincent. 



Rileya abnormicornis Ashmead. 



Ashmeadia abnormicornis Ashmead, Journ. Linn. Soc. Lond. Zool. XXV, 

 1894, p. 145. 



Male. Differs from all other species in the antennae, the first four 

 funicle joints each strongly narrowed at apex into a cylindrical neck which 

 is nearly as long as the more or less spherical basal portion of the segment, 

 the fifth funicle joint without a neck and rather closely joined to the club; 

 otherwise appears to be a nearly typical Rileya. The head is fully three 

 times as broad as long, the postocellar line twice the length of the ocello- 

 ocular, face below eyes strongly striated; antennal depression margined; 

 carina on cheeks and behind the eye moderately distinct ; propodeum 

 with a distinct transverse carina which is angulated at the middle; abdom- 

 inal petiole very short; first tergite rather large; second small; third reach- 

 ing to the middle of abdomen, about twice as long as the second; fourth 

 the largest tergite; fifth about equal in length to the exposed part of third; 

 following concealed from above. 



Female. Unknown. 



One male specimen in the U. S. N. M., apparently the unique 

 type, collected on the island of St. Vincent, West Indies. 



Rileya orbitalis Ashmead. 

 Rileya orbitalis Ashmead, Mem. Carnegie Mus I, 1904, p. 467. 



Placed in key from the original description. Type, a female, 

 in the collection of the Carnegie Museum, Pittsburgh, Pa. Type 

 locality Santarem, Brazil. 



Rileya gallicola Kieffer and Jorgensen. 



Rileya gallicola Kieffer and Jorgensen, Centralb. Bakt. Paras. Insekt., 

 Bd. 27, 1910, p. 437. 



Placed in the key from the original description. Location of 

 type unknown. Type locality, neighborhood of Mendoza, 

 province of Mendoza, Argentina, South America. 



Rileya albicornis Kieffer and Jorgensen. 



Rileya albicornis Kieffer and Jorgensen, Centralb. Bakt. Paras. Insekt., 

 Bd. 27, 1910, p. 367. 



Placed in key from original description. Described from 

 'female, location of type unknown. Type locality. Province of 

 Mendoza, Argent in.!, S. A. 



