138 CATALOGUE OF 



Female. Black, hairy, smooth, shining, subfusiform. Head elongate- 

 conical, a little shorter than the fore lobe of the prothorax; ante-ocular 

 part full twice as long as the post-ocular. Antennas hirsute, a little 

 louger than the head and the prothorax together; first joint less than half 

 as long as the second; third shorter than the second. Fore lobe of the 

 prothorax nearly twice as long as the hind lobe, which is luteous. Tro- 

 chanters, femora at the tips and four posterior femora towards the base 

 luteous. Tarsi and fore tibiae tawny, the latter clavate, with a short spongy 

 furrow. Fore wings with two whitish costal spots, the one a little before 

 the middle, the other beyond the middle. Membrane whitish at the tip. 

 Length of the body 4 Hues. 



a. Hindostan. Presented by W. W. Saunders, Esq. 



b. Hindostan. From Mr. Slevens' collection. 



Eastern Isles. 

 28. Prostemma visulos. 

 Alloeorhynchus vinulus, Slal, A. S. E. F. Ame Sir. iv. 59. 

 Java. 



29. PfiOSTEMMA NIGRA. 



Niger, subselulosa; caput conieum, prolhoracis lobo antico perparum 

 brevius ; antenna pieece, capite el prolhorace ad unum mullo longiores ; 

 prothorax planus ; membrana nigricanle cinerea. 



Black, shining, subfusiform, thinly setulose. Head conical, very little 

 shorter thau the fore lobe of the prothorax; ante-ocular part twice as 

 long as the post-ocular. Antenna? piceous, much longer than the head and 

 the prothorax together; first joint as long as the ante-ocular part of the 

 head; second about thrice as long as the first; third a little shorter than 

 the second ; fourth as long as the third. Prothorax flat ; fore lobe about 

 twice as long as the hind lobe. Scutellum and corium dull. Membrane 

 blackish cinereous. Length of the body 3£ lines. 



a. Dorey, New Guinea. Presented by W. W. Saunders, Esq. 



b. Dorey, New Guinea. From Mr. Wallace's collection. 



30. Prostemma tarsalis. 



Nigra; caput conicum, prothoracis lobo antico vix brevius; antennae 

 picea?, capite et prolhorace ad unum paullo longiores ; tarsi teslacei ; 

 corium macula coslali rufa longiuscula. 



Black, smooth, shining, fusiform. Head conical, nearly as long as the 

 fore lobe of the prothorax ; aute-ocular part twice as long as the post-ocular. 

 Antennae piceous, a little longer than the head and the prothorax together; 

 first joint as long as the ante-ocular part of the head ; second about twice 

 as long as the first; third somewhat shorter than the second; fourth as 

 long as the third. Fore lobe of the prothorax twice as long as the hind 

 lobe. Scutellum and fore wings dull. Tarsi testaceous. Corium with 

 an elongated red costal spot in the middle. Length of the body 2J lines. 



a. Dorey, New Guinea. Presented by W. W. Saunders, Esq. 



