60 Clarence E. Mickel 
2. First joint’ of hind tarsi distinctly longer than the longer spur of hind 
tibiae is. aiee 3 ste Oe. e xo eae Ba seat Oe a one Ee one 
First joint of hind tarsi of about equal length to the longer spur of 
hind tibides.. Gas cious Meo d clans eata ete eee ee ee 10 
3. First cubital transverse vein received by the marginal cell before its 
middle, the space between the recurrent nervure and the apex of 
the submarginal cell much greater than the width of the latter cell 
at the: apes acs tcc’ eis ieomua eesle cant aicledes Re oie te 4 
First cubital transverse vein received in about the middle of the mar- 
ginal cell, the space between the recurrent nervure and apex of sub- 
marginal cell not or rarely greater than the width of the latter cell 
BE AD OK oc vets: eve, oles eve nc teue, tuys orohslerer ate aye aie tals Yate <a sean here tees eve eee Re eeeaee 5 
4. Pronotum with lateral tooth small and weak; pronotum entirely, scu- 
tellum and metanotum in part, yellow; second and third sternites 
Spotted’ swithtyellow? S842 S20 c estes, Reaueee trae bles eats cingulatus 
Pronotum with lateral tooth strong; pronotum with two, sinuous yel- 
low spots only; no yellow on scutellum, netanotum or sternites, 
argus 
5. Flagellum scarcely twice the length of the scape, about equal to the 
space between the eyes on an imaginary line drawn across the vertex 
before the hind ocelli; mesepisterna not striated; hind tarsi yellow- 
ISH” TESESEEOUIST cs vans was cic oe aie ain an aa be ea tumidus 
Flagellum more than twice longer than the scape, greater in length 
than the space between the eyes on an imaginary line drawn across 
the vertex, before theshind socellt “ia.ccsesi ae tae ae ee nee 6 
6. Scutellum of head and thorax subtile, sparsely punctate, granulate be- 
tween the punctures; propodeum finely striated above; scutellum 
black “(not yellw ) > .02e os oe eine sich eatin tore crane meee brunert 
Sculpture of head and thorax, particularly that of the mesonotum, 
Well! ‘marked i sy. owt oe tiers cle eats Ca ere cee eigen eee arene eee 7 
7. Propodeum above very coarsely sculptured; with strong longitudinal 
or somewhat oblique ridges, which extend to base of posterior face; 
pronotum distinctly dentate laterally; scape yellow, at least ante- 
riorly; first sternite with two separate spots ...:.......... advenus 
Propodeum above not so coarsely sculptured; if it is, then the ridges 
become obsolete towards the posterior face (in one case with close, 
rather fine, longitudinal striae; markings yellow) .............. 8 
8. Space between hind ocelli decidedly less than that between them and 
the nearest eye margin; propodeum with a well marked, triangular 
enclosure, which is longitudinally and closely striated; mesepisterna 
above in addition to the puncturation, distinctly striated ; mesonotum 
very compactly punctured (first sternite with a band; extreme tips 
of “femora -yellow) esis ts dew ka Cet a eee ee pleuralis 
Space between hind ocelli not much less than that between them and 
378 
