ART. 5 GENEEIC REVISION OF THE FOSSORIAL WASPS PAItKER 09 



prominent carina and the sixth a very narrow median process, whose 

 ventral surface is concave and whose apex resembles a carina. It 

 does not reach the apex of the sternite. The seventh sternite bears a 

 median carina. The sides of the seventh tergite are gently sinuate 

 and the apex is broad and round. Lateral ridges are present but not 

 at all prominent. The eighth sternite ends in a relatively short, 

 curved, hirsute spine that, near its middle, is much dilated along its 

 dorsal margin (fig. 178). 



AUotyjje (female). — Black: narrow dorsal border and broader 

 lateral borders of labrum; very narrow border and narrow lateral 

 stripe on clypeus; pair of small spots betAveen antennae; pair of 

 rounded spots near anterior ocellus; trace of anterior orbits opposite 

 antennae; posterior orbits broad below, narrowed and shortened 

 above; posterior border of pronotum; side of prothorax, except large 

 lateral spot that covers much of the tubercle; narrow lateral lines 

 and narrow, transverse discal line on scutum; narrow fascia oq 

 posterior border of scutellum; narrow fascia on posterior border of 

 metanotum ; curved fascia on propodeum, widened and interrupted on 

 its posterior surface; spot on posterior lateral angles extended to 

 form an interrupted fascia on ventral part of posterior surface of 

 propodeum; vertical anterior stripe on side of propodeum; meta- 

 pleura almost entirely; triangular spot with longer leg vertical and 

 shorter leg longitudinal on mesopleura; widely separated lateral 

 spots on first tergite ; fascia on second tergite, notched at midline on 

 anterior border, broadly emarginate on median posterior dorsal 

 border, and enclosing a pair of elliptical black spots ; fascia on third 

 tergite similar to that on second but with emarginations representing 

 the discal spots; narrow, interrupted fascia on fourth tergite; small 

 widely separated lateral spots on fifth; small lateral spots on ster- 

 nites 2-4; line above and below on femora; tibiae, except black line 

 above and below; and tarsi, except black spot below on anterior 

 metatarsus ; yelloic. 



The flagellum is black with a fuscous line below on all segments. 

 The wings are slightly and uniformily infumated. The anterior 

 metatarsus bears six broad, black spines whose dorsal surface is con- 

 cave. The disk of the second sternite is smooth and shining and 

 bears scattered coarse punctures. The sixth tergite is roundly tri- 

 angular at the apex and is densely punctate except at the extreme 

 posterior end. The labrnm bears a distinct longitudinal carina that 

 broadens near the apex where it is distinctly grooved (figs. 172, 173). 



The paratype differs but slightly from the allotype : the clypeus, 

 frons, and labrum have less yellow on them and the carina of the 

 labrum is less conspicuous at the base. 



