140 



Hylaeus (Deranchylaeus) atriceps (Friese). 



Prosopis atriceps Friese. 



Arch. Naturges. 77:130 2 Transvaal 1911. 

 Prosopis atnceps Alfkeii. 



Deutsch. Ent. Zeitschr. 1914:187 9 (nee $). 

 The male described as atriceps $ by Alfken is certainly 

 the same as one taken by me at Capetown but the female I 

 have associated with it is not atriceps Friese but tenuis Alfken. 

 Probably atriceps is a distinct species with a more northern 

 distribution. The Capetown species I believe to be ^irvicari- 

 nattis (Cameron). 



Hylaeus (Denrachylaeus) bequaertianus n. sp. 



2 This species is very like curvicarinatus but differs by the characters 

 given in the table, a whitish line extending along the inner orbits to the 

 lower end of the supraorbital foveae. The microscopic punctures of the 

 first tergite are exceedingly shallow and hardly to be distinguished even 

 with a binocular. 



$ The male has the pale coloration whitish rather than yellow and 

 the face marks are curved away from the eye margin over the antenna! 

 sockets and in none of the individuals studied is there a trace of a light 

 mark on the supraclypeal area. The apices of all the tibiae are pale 

 while the pale band on the base of the hind tibia is reduced, otherwise 

 practically like curvicarinatus. 



The genitalia of this species and of curvicarinatus are practically alike 

 and the description of this species will serve for both, the differences 

 being pointed out. 



Edeagus with the stipites rounded at apex extending to the tips of 

 the sagittae, with a few stout straight acuminate hairs at apex, basal 

 part about as long as the narrow apical part. 



Eighth sternite with the apical process truncate at apex ; about as long 

 as the width, on either side, of the basal part, the basal part is produced 

 somewhat into a rounded lobe on either side. In curvicarinatus the 

 process is a little shorter and rounded at apex. 



Seventh sternite with a basal and apical lobe on either side, the 

 apical lobe is chitinous and hornlike but a little compressed, the basal 

 lobe is a little shorter but little chitinized and a little strap-shaped 

 bearing a few long spines or teeth on its anterior margin. In curvi- 

 carinatus the apical lobe is shorter, less compressed and more hornlike, 

 while the basal lobe is shorter and more rounded and the teeth much 

 feebler, the sinus between the two lobes being conspicuous in bequaer- 

 tianus and hardly perceptible in curz'icariiiatiis. 



