Notes on the Hymenoptera. 



Collected by the Bahama Expedition from the State 

 University of Iowa. 



By WILLIAM H. ASHMEAD. 



Very little is known of the Hymenopterous fauna, of the 

 Bahamas, and the following list of Hymenoptera, most of which 

 were collected by Mr. H. F. Wickham on a visit to these 

 Islands in 1893, will be of interest and value to those inter- 

 ested in the distribution of these insects. 



Mr. Wickham made no special effort to collect Hymenop- 

 tera, his specialty being Coleoptera and his collecting must 

 represent therefore, but a small fraction of the fauna. 



FAMILY APID^. 



1. COSLIOXYS Sp. 



One 6 specimen, Egg Island. This is possibly one of 

 the numerous species described from South America. It is 

 parasitic or inquilinous in the nest of the leaf-cutting bees 

 {Megachile). I have seen no large collection of these bees 

 from the West Indies and South America and no effort has 

 been made to identify the single specimen taken. 



2. NOMIA WICKHAMII Sp. n. 



$ Length, 12 mm. Black; face, cheeks, superior margin 

 of collar, tubercles, metapleura, legs and sides of abdominal 

 segments clothed with a cinereous or whitish pubescence; 

 metascutellum with a hoary pubescence; tongue at tip piceous; 

 palpi ferruginous; flagellum beneath dull ferruginous. The 

 dilated posterior tibiae and the broadly dilated apical margin, 

 which is produced into a tooth within, yellow; the apical mar- 

 gins of the second, third, fourth and fifth segments banded 

 with greenish-yellow, the band on the fourth segment not 

 however, extending to the lateral margins. Genitalia ferru- 



28 



