126 



antennae (evenly romided down to the sockets). 



Gnathoprosopis Perkins 



Mandibles eliannelled outwardly as in Hi/hieiis. rounded at 

 i\]wx, sides of supraclypeal area ridg-ed or angulate between 



the antennae (juathijlaeiis n. gen. 



4. Scutellum and metanotuni normal Hylaeus, etc. 



Scutelluni and metanotuni produced posteriorly on either 

 side into a lateral laminate tooth or spine, superior face of 

 propodeum areolate, separated from the posterior face by a 

 carina, posterior face divided by- a longitudinal carina, angu- 

 late and subcarinate at the sides, su]>raclypeal area narrowed 

 above margined, clypeus higher than broad at apex, tirst and 

 second cubital cells receiving the recurrent nervures near their 

 apices. 



$ A])ical narrow portion of stipes with black hairs, but 

 little longer than the basal part, slightly exceeding the sagittae, 

 eighth sternite produced into a rounded lamina as long as wide 

 as its base, carinate medially. 



Coloration black with yellow markings on the collar and 

 in the $ upon the head and legs.. Mrtylainis n. gen. 



14. X 



OTIIVLAKT 



This genus so far is Ethiopian in its distribution. Several 

 species previously described as species of Prosopis are referable 

 here and three species from West Africa are here described, 

 one of them so peculiar as to warrant the erection of a subgenus 

 for its reception. Type Prosopis lirrnldica Smith. 



Nothylaeus heraldicus (Smith). 



Pjosopls Iteraldica Smith. Cat. llym. I>i'it. ^Nfus. 1 :;»,"> 5 

 Co])e of Good Hope 1858. 



This species was taken in nund)ers visiting the flowers of 

 various species of Aloe in the botanical garden in Ca]>etown. 



