16 Cameron, Hymenoptcra Orientalia. 



metatarsus at the base, white. Wings clear hyaline, the 

 apices of both wings smoky ; the nervures fuscous ; the 

 areolet shortly appendiculated at the top ; the recurrent 

 nervure received in the basal third of the cellule. 

 Abdomen very smooth, shining ; the petiole entirely 

 white on the basal half; its apex narrowly, the base of 

 the second segment, its apex narrowly, the base and 

 apex of the third and fourth, broadly, white ; the ventral 

 surface for the greater part white. 



Cryptus orientalis, sp. nov. 



Niger, pedibus abdomineque late rufis; alts' ftisco-hyalinis, 

 nervis testaceis. 2. Long. 12; terebra 4 mm. 



Hab. Mussouri (Rothney). 



Head black ; the apex of the clypeus, the orbits 

 narrrowly, except near the top behind, the base of the 

 mandibles, a line at their base joined to the eyes, pale 

 testaceous ; the palpi fuscous, testaceous at the base. 

 Antennae black ; the 6 — 8 joints pale testaceous beneath. 

 Thorax black ; closely punctured ; the lower half of the 

 propleurae strongly longitudinally striolated ; the parap- 

 sidal furrows complete, deep, broadest at the base ; the 

 scutellum closely punctured ; the post-scutellum shining, 

 and bearing a few scattered punctures ; on the base 

 of the median segment are two large areas, curved ; 

 truncated at the sides, the space enclosed being finely 

 rugose ; between the basal and the apical keels the front 

 is strongly irregularly striolated; the central keels being 

 the larger and most regular ; the spines large, somewhat 

 triangular. The apex has an oblique slope ; the centre 

 coarsely coriaceous ; the sides with stout transverse 

 striations. Coxae and trochanters black ; the anterior 

 trochanters testaceous at the apex ; the hinder tibiae 

 infuscated, especially towards the apex ; the hind tarsi 

 rufo-testaceous, the metatarsus except at the apex, and 

 the apex of the terminal joint black. At the top the 



