160 Mr. E. Saunders' Synopsis of 



(24) 25. Maxillary palpi 3-jointed. 



(27) 26. Apical joint of labial palpi much shorter than 

 3rd ; 1st segment of abdomen not carinated at 

 the base Chelostoma. 



(26) 27. Apical and 3rd joints of labial palpi subequal ; 



1st segment of abdomen carinated at the base Heriades. 

 (3) 28. 2nd joint of labial palpi not half so long as 1st. 



(30) 29. Anterior wings with two submarginal cells . . Eucera. 

 (29) 30. Anterior wings with three submarginal cells. 



(32) 31. Maxillary palpi 6-jointed Anthophora. 



(31) 32. Maxillary palpi with one, two, or four joints. 



(34) 33. Maxillary palpi with four joints Saropoda. 



(33) 34. Maxillary palpi with one or two joints. 

 (38) 35. Maxillary palpi 2-jointed. 



(37) 36. Mandibles of ^ fringed with stiff curled hairs ; 

 posterior iihise of J and § concave and shining 

 externally , . . . . . . . . . . . Bombus, 



(36) 37. Mandibles of ^ not fringed with stiff curled 



hairs ; posterior tibiae of J convex and hairy Psithyrus. 



(35) 38. Maxillary palpi with one joint . , . . . . Apis. 



Panurgus, Panz. 

 Panz., Krit. Eevision, Band ii., p. 209 (1806). 



Wings with two submarginal cells ; labial palpi 4-jointed ; maxil- 

 lary palpi 6-jointed ; 2nd and 3rd joints of labial palpi subequal ; 

 (J with all the eight ventral segments of the abdomen exposed, 

 the 7th largely emarginate, the 3rd narrow and andreniform ; 

 species black, shining, clothed with black hairs. Anteiuiae in 

 the S' scarcely longer than in the 5 ; base of the posterior tibiae 

 with a patella. 



(2) 1. Smaller; ^ with a large blunt spine on the pos- 

 terior femora ; J with the surface of the abdo- 

 men above nearly naked, and the scopse dull 

 brownish yellow . . . . , . . . . . calcaratus. 



(1) 2. Larger; ^ with the posterior femora simple; J 

 with the surface of the abdomen above rather 

 densely clothed with upright hairs ; scopas bright 

 golden . . . . . . . , . . . . ursinus. 



1. Panurgus calcaratus, Scop. (PL V., fig. 2 — 2 6). 



Scop., Ent. Cam., p. 301 ; Smith, Cat. Brit. Hym., 

 2nd ed., p. 106. 



Black, shining; antennae fulvous towards the apex, rarely 

 entirely black ; posterior femora with a large blunt tooth beneath ; 

 $ with the scopae dull ochreous yellow. 



