BY ROWLAND E. TURNER 239 



smooth, the base constricted. Epipygium more coarsely punc- 

 tured, narrowly truncate at the apex. The abdomen is shorter 

 and broader than in others of the genus. Black, the two apical 

 segments of the abdomen ferruginous-red; mandibles at the apex, 

 fore tibiae and tarsi, the calcaria and tarsal ungues, and the apical 

 margins of the five basal abdominal segments fuscous. Wings 

 hyaline, slightly iridescent, nervures black. The clypeus and the 

 rsides of the thorax and abdomen with gre}' pubescence. Length 

 13 mm. 



9. Unknown 



Hah. — Mackay, Q. 



R. PROTHORACICUS, n.sp. 



(J. Head densely and finely punctured, more sparsely and very 

 finely on the occiput^ clypeus clothed with white pubescence, 

 without a carina. Thorax densely and strongly punctured, the 

 prothorax narrowed anteriorly, the angles not produced; the 

 scutellum rounded at the apex. Median segment short, truncated 

 posteriorly, more tinely punctured, with long white pubescence 

 on the sides. Abdomen densely and finely punctured, segments 

 2-5 with a depressed transverse line near the base and a raised 

 mark on each side near the apical margin. Epipygium coarsely 

 rugose, very narrowly truncate at the apex, with a short spine 

 on each side near the base. The aculeus of the hypopygium has 

 an acute spine on the upper surface close to the base. The carina 

 beneath the hypopygium not prominent. Black; the prothorax 

 and mesopleura3 ferruginous-red, the tegulae dark testaceous, the 

 tarsal ungues testaceous. Wings hyaline, very slightly clouded 

 in the radial cell. Length 11 mm. 



9. Head rectangular, longer than broad, the posterior angles 

 not rounded, densely punctured, clothed with pale fulvous pubes- 

 cence. Prothorax smooth, rather short, very little narrowed 

 anteriorly, a deep depression on each side, broad on the posterior 

 margin, but not reaching the anterior margin, the lateral margins 

 elevated. Median segment rather sparsely punctured, with a 

 median carina and slightly depressed on the sides, broadened 



