- 237 - 



In acheron the scutellum is strongly elevated, its summit very slightly 

 compressée! and a little more abrupt posteriorly than in front. 



Smicromyrme (Trogaspidia) dispilotaemorpha (Bischoff). 

 Obock : Djibuti, one female (J. Hervé-Bazin). 



Smicromyrme (Trogaspidia) degreefi, new species. 



Female. — Elongate,very slender. Black; the antennal tubercles, 

 the middle of the mandibles, the coxas and the dorsal surface only 

 of the thorax, dull red; calcaria testaceous. With erect black setae, 

 mixed with white ones on the under side of the body and on the legs; 

 the pleura; covered with yellowish, somewhat glossy tomentum; 

 two round, discal spots of yellowish white pubescence on the second 

 tergite and two similar, broad, transverse spots on the third, widely 

 separated from each other and from the latéral margins. Ultimate 

 tergite with abundant yellowish hairs. 



Length : 6,5 mm. 



Head elongate behind the eyes, with strongly converging sides; 

 the occipital margin straight. The entire head densely and coarsely 

 punctured, hardly raised between the eyes. Antennal grooves mar- 

 gined above, the margin reaching the eyes. Antennal tubercles in 

 juxtaposition. Clypeus with a short, superior raised portion below the 

 antennae, separated from the lower, scooped out part by a strong 

 ridge; the raised area with a médian, transverse, feebly bituberculate 

 lamella. Mandibles straight, acute, edentate. Second segment of 

 flagellum but little longer than the third. Dorsum closely and coar- 

 sely rugose-punctate; its sides nearly parallel, as broad anteriorly 

 as at the propodeum. Propodeal scale elevated. Anterior margin 

 convexly rounded, the humerai angle only marked as a minute tooth. 

 Posterior. surface of propodeum longitudinally ribbed. First sternite 

 with a low carina which is broadly notched in the middle, the two 

 "eeth thus formed very low. Tergites uniformly covered with dense, 

 moderately large punctures. Pygidial area shiny, its basai third co- 



