102 Clarence E. Mickel 
10. 
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I2. 
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14. 
15. 
16. 
17. 
18. 
Longer spur of hind tibiae pale, longer than the basitarsus ; marginal 
cell of anterior wings narrowly and squarely truncate ..... mundus 
. Interocular space at vertex greater than the length of antennal joints 
two and" threestanited= 220.2 2. al a dees ee eee a eee ee 10 
Interocular space at vertex about equal to the length of antennal joints 
two and:-thtee sited \ 25 24s. axs eeeaw aries ces pee ook on eee iii 
Interocular space at vertex about equal to the length of antennal joints 
three and four united; abdomen red, black apically. ..nigrocaudatus 
Interocular space at vertex less than the length of antennal joints 
three and four united; abdomen red and black .......... consimulis 
Abdomen entirely ed) og 55 F asad ys oece aad ae eee ey eee eee 12 
Abdomen about equally red and black ........ PLATT Oona Teeetcene 16 
Second submarginal cell much longer on the radial vein than the third 
StIDMALGIN al ae onc hee eee eee oath oes er Ln eee texanus 
Second and third submarginal cells about equal on the radial vein.. 13 
Longer spur of hind tibiae longer than the basitarsus; sides of face 
and front with medium-sized shallow punctures interspersed with 
exceedingly time cones) = seule bia onion ee eee er curser puncticeps 
Longer spur of hind tibiae shorter than the basitarsus ............ 14 
Clypeus emarginate medially; abdomen bright red ....... SaNnguinosus 
Clypeus entire; abdomen more or less brownish red .............. 15 
Mesonotum and scutellum with rather sparse, deep punctures, 
semirufus 
Mesonotum and scutellum with close, deep punctures; the mesonotum 
AppPeatine salmose oe ranilatees gamer een ok cenit eet simmert 
Scutellum and mesonotum with rather sparse, very shallow, punctures, 
erythraeus 
Scutellum and mesonotum with tolerably close, deep punctures, 
tenuipunctus 
Propodeum reticulate, wings subfuscous, tarsi black ............ acuta 
Propodeum granular, wings hyaline or nearly so ..............--- 18 
Longer spur of hind tibiae shorter than the basitarsus ....punctifrons 
Longer spur of hind tibiae longer than the basitarsus........ glabrior 
Males 
. Interocular space at vertex about two thirds or more the interocular 
space at the lower edge of the eyes; upper portion of frons and 
vertex with rather long, sparse, erect pile, which is about as long as 
the diameter of an antennal joint; head rather sparsely punctate 
and polished, pseudo-ocelli present; abdomen red-tipped, rarely en- 
tire liy leche Mee sc ace. iers sictePave ate. 3 are eset ust thei boas at aie ode ee eon enele eepeeneen 2 
Interocular space at vertex one half or less (seldom a little more than) 
the same space at the lower edge of the eyes; no long, erect pile on 
the vertex; no pseudo-ocelli behind the posterior ocelli.......... 3 
420 
