SMULYAN: NEW ENGLAND TENTHREDELLA. 431 
continued as a narrow angular brownish discoloration for some 
distance on the cheek along the margin of the eye ; posterior half of 
cheeks as a rule darker yellow, or brownish; antennae black, 
basal segment sometimes yellowish inside; palpi often greenish. 
Head behind eyes somewhat narrower than through them; supra- 
antennal ridges fairly prominent; frontal fovea as a rule wider 
posteriorly. 
Thorax. — Black; the following parts yellowish, or straw 
color: margin of pronotum (usually interrupted mesodorsally and 
widening on the posterior dorsal margin of lobes of collar and on 
the lateral face of pronotum), pronotal lobe, lower portion of 
lateral face of propleura as a rule, ventral face of propleura, 
prosternum, tegulae, V-spot on prescutum (usually not com- 
plete posteriorly; in a specimen from New York it was com- 
pletely absent), meso- and metascutellar transverse extensions, 
the upper margin of the meso-epimeron in greater part rather 
broadly, an obtuse-angled band on lower limit of meso-opisternum 
(much broader on anterior half and extending somewhat on the 
pectus), pectus except rather wide lateral and anterior borders, 
upper margin of meta-epimeron narrowly, meta-episternum 
almost entirely, and the greater upper portion of the meta-post- 
scutellum (interrupted medially and longitudinally). Meso- 
scutellum from quite strongly to strongly convex, and more or 
less elevated; meso-episternum generally sharply pointed. 
Abdomen. — Black; the following parts yellowish white, or 
straw-white: very often from three to four small and sometimes 
indistinct spots in a median line at junctures of terga beginning at 
juncture of second and third, as a rule posterior margins of the 
six basal terga very narrowly, sides of six or seven basal terga, 
and venter except the greater part of the terminal portion beyond 
the sixth sternum. 
Legs. — Yellowish, or straw color (anterior tibiae, anterior and 
middle tarsi often greenish); the following parts black: inter- 
mediate coxae at base above and roughly the outer longitudinal 
half of the posterior, a short longitutUnal band on the apical por- 
tion of the anterior femora above and a longitudinal band on the 
intermediate above (latter as a rule abbreviated basally), the 
apical half of the posterior femora (the black above is as a rule 
