DINETUS PICTUS. 93 



metathorax truncate posteriorly; the anterior wings with one 

 marginal and two submarginal cells j the marginal cell truncated 

 at the apex, and emitting a nervurefrom the lower angle of the 

 truncation, which runs up to the margin of the wing, tracing a 

 second marginal cell; the first submarginal cell oblong, receiving 

 the first recurrent nervure at its apex ; the second small and tri- 

 angular, receiving the second recurrent nervure; the anterior 

 tarsi ciliated ; the abdomen ovate and subsessile. 



1. Dinetus pictus. 

 D. niger ; thorace maculato, abdomine ferrugineo, fasciis tribus 



flavis, ano nigricante. Foem. 

 D. fronte flava, antennis cochleatim retortis. Mas. 



Sphex gutta, Fabr. Ent. Syst. ii. 215. 72 $ . 

 Crabro pictus, Fabr. Ent. Syst. ii. 299. 20 ^ . 



Panz. Faun. Germ. 17. 19 $ , 72. 10 . 

 Crabro ceraunius, Rossi, Mant. Append. 123. 11. 

 Pompilus guttatus, Fabr. Ent. Syst. Supp. 252. 34 ? ; Syst. Piez. 



196. 44. 

 Larra picta, Latr. Hist. Nat. xiii. 296 $ . 



Spin. Ins. Lig. i. 73. 4. 

 Dinetus pictus, Jurine, Hym. 209. t. 11. gen. 26 $ . 



Latr. Gen. Crust, et Ins. iv. 73 $ ? . 



Guer. Diet. Class. Hist. Nat. ix. 496. 



Panz. Krit. Revis. ii. 193. 



Van d'. Lind. Obs. ii. 26. 1. 



Shuck. Foss. Hym. 94. 1. 



Dahlb. Hym. Europ. i. 232. 134. 



Guer. Icon. Reg. Anim. t. 70. f. 10. 



Steph. Illustr. Mand. vii. Supp. 12. t. 42. f. 3. 



Wesm. Hym. Foss. Belg. 73. 1. 



Female. Length 3i lines. Black ; the base of the mandibles 

 and a line behind the eyes yellow ; the face and clypeus covered 

 with silvery pubescence. Thorax : an interrupted line on the 

 collar, the tubercles, and a transverse line on the scutellum, 

 yellow ; the metathorax with a slight central longitudinal im- 

 pression terminating in a fossulet, with oblique striae on each 

 side of it, its superior surface and sides covered with a dense 

 silvery pubescence converging at the extremity, and enclosing 

 the superficies of the metathorax at the apex ; the wings iri- 

 descent and slightly coloured, the nervures piceous ; the apex of 

 the anterior femora, and the exterior of all the tibiae, yellow ; 

 the tarsi rufo-testaceous, the basal joints of the intermediate 



