74 Harry Scott Smith 
6. Anterior legs normally developed, without a shield-like ex- 
patision) ‘Ors the “tibiae ia. Abe iae Sri hear estate 11 
7. Flagellum of antennae not compressed, the joints scarcely wider 
than long, the first two always longer than wide; anterior 
tarsi not especially broad, without an appendage......... ~ 8 
7. Flagellum of antennae compressed, the joints much widened, the 
first three or four joints fully twice as wide, or wider, 
than long; anterior tarsi dilated, with an appendage...... 9 
8. Scutellum with two yellow spots; tibial shield yellow; wings 
hvalinesmerviuresimveny, Dalene caeeice sci sete t eine vernalis 
8. Scutellum black; tibial shield black with a few lighter 
marks; wings faintly clouded, nervures dark......... advenus 
9. First joint of flagellum not broadened to meet the second, not 
longer than the pedicellum; joints 2-6 with a large ap- 
pendage on the outer margin, that on 2 narrowest and 
most curved, that on 6 broadest and not curved; tibial 
shield brownish, yellowish green at base, covered with 
pale dots; scutellum and postscutellum black; first ab- . 
dominal segment banded; intermediate legs except coxae 
entirely.’ yelliowy ave ko%.cacks back waters alae o esto Ate anne argus 
9. First joint of flagellum broadened to meet the second, longer 
than the pedicellum, none of the joints with a long acute 
appendage on’ the: lower marein. sce. sees aces etre oi ere 10 
10. First joint of flagellum not hirsute beneath; thorax not at 
all marked with yellow; intermediate femora in part yel- 
low’; clenpth 98-20" mit. ae .p hare dete nea seats a then eee latipes 
10. First joint of flagellum with a bunch of pale, curled hair 
beneath; pronotum and scutellum usually marked with 
yellow; intermediate femora black; length 11-13 mm, Jargior 
11. Scape of antennae cylindrical, not broader apically than at base, 
flagellum rather slender; mesosternum with short, sparse, 
pale silvery pubescence; wings fusco-hyaline..?........ hilaris 
11. Scape of antennae compressed, much broader apically than at 
base, flagellum stout; mesosternum with long dense, white 
haits) swines hyaline... ek ak eae eee cingulatus 
12. First joint of hind tarsi distinctly longer than the longer 
spur,of, hind ytibige V0) Aad hae eee Cee ice ee 13 
12. First joint of hind tarsi of about equal length to the longer 
spur of hind tibiae; a yellow spot just back of tubercles, 
hilaris 
13. First transverse cubital nervure received by the marginal cell be- 
fore its middle, the space between the recurrent nervure 
and the apex of the cubital cell much greater than the 
width: of the: datter’ cell atCapexs>.. oy awbes cane saree tee 14 
396 
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