234 WILLIAM J. FOX. 



36. Second dorsal with l)lack pubescence at base and apex in middle 37. 



Second dorsal, as well as entire insect above, covered with a golden orange 



pubescence, with practically no erect hairs; pubescence of legs and 

 body beneath black californica var- 



37. Second ventral segment with very coarse, scabrous sculpture, ground color 



black (body clothed througjiout with whitish or yellowish white 



pubescence) scabra Fox. 



Second ventral segment with large, sparse, shallow punctures, ground color 

 reddish (pubescence above varying from scarlet, to orange, to yellowish 

 white, beneath it is always whitish) heterochroa Ckll. 



38. Ground color reddish; second dorsal almost nude, with large, sparse punc- 



tures 39. 



Ground color black 40. 



39. Pubescence of head and thorax dirty white; a black patch on third dorsal, 



the remaining segments with dirty white pubescence- -pliCBiiix n.sp. 

 Pubescence pale yellowish throughout; no black patch on abdomen. 



venifica Blake. 



40. Pubescence above pale yellow progne n. sp. 



Pubescence above varying from scarlet to fulvous califorMica Eads. 



41. Pygidium rugose or coriaceous 42. 



Pygidium coarsely striated longitudinally 43. 



42. Pubescence pale yellow or grading into fulvous aureola Blake. 



Pubescence scarlet pacifica Cress. 



43. Head and thorax with black pubescence, that of abdomen above fulvous. 



gorgon Blake. 

 Head, thorax and abdomen above with fulvous pubescence. 



g4»rgoii Blake, var, 



MALES. 



First segment distinctly nodose, the suture between it and segment 2 deep and 

 well marked 2. 



First segment not or scarcely nodose, the suture between it and segment 2 

 not deep 27. 



2. Carina of first ventral segment produced posteriorly into quite a long tooth. .3. 

 Carina of first ventral segment not unusually produced posteriorly 7. 



3. Head and thorax above and apical half of abdomen with pale pubescence. 



ISackenii Cress. 

 The pubescence otherwise colored 4. 



4. Entirely l)lack, except the apical portion of dorsal segment 2, and the follow- 



ing entirely, which are clothed with long fulvous hairs- .orcus Cress. 

 Head and thorax above with reddish or fulvous pubescence 5. 



5. First and second transverso-cubital veins coalescing at the top : head and 



thorax above, and dorsal segments of abdomen from apex of segment 



2 to apex, with fiery-red pubescence cocciiieoliirta Blake. 



First and second transverso-cubital veins distinctly separated above 6. 



6. Punctuation of second dorsal segment sparse medially, so that the segment is 



more or less shiny in that spot, ventrally the segment has rather even, 

 strong punctures; dorsals 3, 6 and 7 with fulvous pubescence. 



occideutaliN Linne. 



