I 



r24i"| DieHymenopterengruppederSphecinen.il. 439 



i35. Sphex argentifrons Smith (non Fabr., non Lep.). 



Spliex iirf^entifrons Sm\lh, Tnxns. Knt.Soc. Lond., (^, 24^ 1868 



»Fcmalc. Lcngth 9' , lincs. Hcad and thorax black, thc abdomcn red. Hcad: the 

 face covered with bright silvery pile, intersperscd with long thin white pubcscence 

 which also thinly Covers the wole head; mandibles fcrruginous. The thorax clothed 

 with pale glittcring pubescene, which is most dcnse on the metathorax and most sparing 

 on thc nicsothorax abovc; thc Icgs bright fcrruginous, with the coxae, and apical half 

 of thc posterior tibiac black; the wings fulvo hyaline, thcir apical margins faintly 

 clouded, thc ncrvurcs fcrruginous. The abdomcn bright fcrruginous. 

 Hab. Champion Bay.« 



i36. Sphex aurifrons Smith. 



i/'/ieA- az////ro«5 Smith, Journ. Proc. Lin. Soc, III, iSy, y 1859 



Sphex niger ; facie pube aurea vestita, alis flavo-hyalinis apice fuscis, abdomine 

 pilis sericeo-aureis vestito. 



»Female. Black; the face densely clothed with golden pubescence, the head having 

 a number of scattered long golden-vellow hairs. Thorax thinlv covered with long yellow 

 pubcscence, which is most dense at the sidcs of the metathorax; the tibiae, tarsi and 

 posterior femora fcrruginous; thc claw-joint of the tarsi black; the tibiac and tarsi with 

 black spines; the wings fulvo-hyaline, their apex with a narrow fuscous border, the 

 nervures fcrruginous. Abdomen covered with a fine, thin, golden-reflecting pile; the 

 apical margins of the segments rufo-testaceous, the testaceous margin produced in the 

 middle into a triangulär shape, most conspicuouslv so on the segments bcneath. 

 Hab. Aru.« 



137. Sphex Belfragei Cresson. 



Sphex Belfragei Cresson, Trans. Am. Ent. Soc. Philad., IV, 212, cf 9 . 1872 — 1873 

 »cT 9 — Black, with sparse black pubcscence, more dense on head; clypeus sub- 

 convex, densely, rather coarscly punctured, with a small fovea near apical middle; pro- 

 thorax subemarginate above; mesothorax shining, with a slight opaline iridescence, 

 sparselv and fincly punctured; scutellum shining, dceply impressed ccntrally; meta- 

 thorax with a short dense, erect black pubescence, uppcr surfacc densely transversely 

 striated; wings yellow-hyaline, subviolaceus, apical margins broadly fuliginous; Icgs 

 black, tibiae brown sericeous within; abdomen shaped much as in texana, ycUow- 

 ferruginous, shining, apex more or less obfuscated, sometimes blackish, petiole black. 

 Length jb — 90 inch. 



P'our cf 9 specimens found on Sumach flowers in August. This has the same 

 form as texana, from which it is at once distinguished by the yellow wings and by the 

 absence of all silvery markings.« 

 Nearktische Region: Texas. 



i38. Sphex Bohemanni Dhlb. 



Sphex BohemannJs Dhlb., Hym. cur., I, 436 1845 



Abdomen totum nigrum. Pcdcs nigri. Alae violaceac. Corpus magnum. Alac 

 saturate violaceac, cellula radiali apice obtusa. Abdomen mediocre, pcliolus brevis. 



