370 Mr. 11. E. Turner on Fossorlal Uymenoptera. 



third. Head sparsely^ thorax more closely punctured ; 

 scutellum witliout a median sulcus, slightly emarginate at 

 the apex. Dorsal surface of the median segment narrow 

 and very slightly concave, the sides above the spiracles 

 smooth and shining, the rest of the segment covered with 

 pubescence. Petiole fully Italf as long again as the broad- 

 ened portion of the first dorsal segment, as long as the 

 second, third, and fourth joints of the hind tarsi combined. 

 Fifth ventral segment deeply emarginate at the apex, 



Hub. Lo-Fou Mountains, S. China [ex coll. Perkins). 



Very nearly allied to the common S. vlduatus, Chr., from 

 which it differs in the distinctly slenderer form, the greater 

 proportionate length of the second joint of the flagellum, 

 the smooth sides of the median segment above the spiracles, 

 the absence of a sulcus on the scutellum, and the distinctly 

 longer petiole. The sculpture of the dorsal surface of the 

 median segment is somewhat concealed by pubescence, but 

 is certainly not so strong as in viduatus. 



Subfamily Philanthijs'm. 

 Cerceris yreeni, sp. n. 



5 . Nigra ; clypeo, margine interiore oculorum sub insertione an- 

 tenuarum latissime, carina frontali, scapo subtus, macula jiost 

 oculos, pronoto augulis posticis, tegulis macula parva, segmentis 

 dorsalibus 2-3 fascia apicali angustissima, tibiis auticis et inter- 

 mediis subtus, tarsisque anticis subtus albido-flavis ; clypeo late 

 emarginato, segmeuto raediano area basali longitudinaliter 

 striata, segmento ventrali secundo area basali elevata nulla; alls 

 fusco-hyaliuis, cseruleo-tinctis. 



Long. 14 mm. 



? . Eyes divergent towards the clypeus ; posterior ocelli 

 more than half as far again from the eyes as from each other. 

 Mandibles with a triangular tooth on the inner margin a 

 little before the middle. Clypeus very widely emarginate, 

 the angles of the emarginatioii slightly produced and forming 

 short teeth ; a very short longitudinal carina just before the 

 teeth. Head very broad ; the cheeks nearly as broad as the 

 eyes ; the clypeus short, subconcave, very broadly truncate 

 at the base, separated from the base of the antennse by a 

 distance equal to the length of the second joint of the 

 flagellum, which is almost eqiial in length to the tirst and 

 third joints combined. Pronotum transverse, the margins 

 slightly raised. Head and abdomen rather closely and not 

 finely punctured ; thorax coarsely and closely punctured. 



