30 Cameron, Hyinenoptera Orientalia. 



Nachr.^ xxiv., p. 383) who forms for the species having two 

 longitudinal furrows the sub-genus Coeloecus and for those 

 having three the sub-genus Heroecus. 



Only one oriental Passaloecus is known, viz., P. levipes 

 Bingham, {I.e., p. 267), from Karennee, Tenasserim, 4,000 ft., 

 which is very different from the species here described ; 

 e.g., the median segment is tranversely striated, the head 

 is without keels, the thorax not punctured, &c. No 

 mention is made either in the generic or specific descriptions 

 of there being any furrows on the mesopleurae or on the 

 mesonotum. 



CrABRO TAPROBANyE, Sp. 710V. 



Aiger, scapo antennariim subtus, mandibulis, linea 

 pronoti, inaculis duahus scittelli, maculis 2 abdominis, tibiis 

 tarsisque pro parte flavis ; alis hyalinis, nervis nigris. 9. 



Long, fere 11 mm. 



Hab. Trincomali, Ceylon ( Yerbury). 



This species does not fit into any of the sections in 

 Bingham's table (/.r., p. 321). The present species might be 

 'following his table) characterized as follows : 



Enclosed space at base of median segment with five 

 short, stout, widely separated striae ; coarsely aciculated ; 

 the sides of the segment next the enclosed space with 

 some oblique striae ; the third abdominal segments with two 

 transverse yellow lines at the base. 



Black; alutaceous; the mandibles, except at the apex, 

 the scape of the antennae, a broad line, somewhat inter- 

 rupted in the middle, on the pronotum, the tubercles, a 

 somewhat smaller mark behind them under the tegulae, a 

 mark on either side of the scutellum at the base, a smaller 

 mark on the mesonotum next to this and nearer the wings, 

 and an elongated line on either side of the third abdo- 

 minal segment at the base, yellow. Head large, aluta- 

 ceous, the front and vertex with a microscopic, fuscous 



