392 Mr. F. Sinitli's descriptions 



or less dusky above ; the wings fulvo-hyaline, the nervures 

 fusco-ferruginous. The two apical segments of the abdomen 

 have a large yellow spot, and the fourth and fifth segments 

 shining. 



Genus Cryptus, Fabr. 



1. Cryptus ambulator. 



Female. — Length 7 lines. Scutellum pale ; the legs 

 red, black and white. Head: the clypeus in front, the 

 labrum, the scape in front, and a narrow line at the inner 

 margin of the eyes, yelloAvish-white ; three joints of the 

 antennae, a little beyond the middle, white. Thorax : the 

 scutellum, apex of the metathorax, and a spot on the pos- 

 terior cox;\3 behind, pale yellow, the tegular are of the same 

 colour ; the femora and basal half of the posterior tibige 

 fulvous ; the apex of the posterior femora, to about one- 

 third of their length, black ; the tarsi, and the anterior 

 and intermediate tibi«, yellowish-white, the claw-joint of 

 the tarsi black ; wings subhyaline, their apical margins 

 slightly fuscous. Abdomen black and shining. 



2. Cryptus carhonarius. 



Female. — Length 4 lines. Black and punctured, with 

 the abdomen smooth and shining. Head : four joints in 

 the middle of the antennce white above. The anterior 

 femora in front, the tibias and tarsi, obscure ferruginous ; 

 the intermediate tibiae in front and the tarsi obscure fer- 

 ruginous ; wings subhyaline, with the nervures and stigma 

 black ; scutellum shining ; the metathorax rugose and 

 obliquely truncate. 



3. Cryptus hasalis. 



Female.— Length 3 lines. Black; head and thorax 

 closely punctured and semi-opaque, the abdomen smooth 

 and shining ; four joints in the middle of the antennte 

 white. The tibias and tarsi fusco-ferruginous, darkest 

 behind ; wings subhyaline, their extreme base yellow, 

 their nervures and stigma black ; the metathorax rugose, 

 the posterior lateral angles produced into a short tooth. 

 The basal segment of the abdomen longitudinally striated. 



4. Cryptus penetrator. 



Female. — Length 4^ lines. Black ; head and thorax 

 punctured and opaque ; abdomen smooth and shining, the 



