SMULYAN: NEW ENGLAND TENTHREDELLA. 447 
intermediate femora black behind (latter somewhat blackish 
before), and the posterior black except ventrally. Fore Mdngs 
distinctly pale honey-yellow. 
Variant 3. — Lower orbit black, and only a minute spot on 
the lower portion of the cheek; meso-epimeron very narrowly 
and brokenly margined above, and no trace of an obhque band 
on meso-episternum; only a yellow spot on the meta-episternum, 
and the meta-postscutellum is black; coxae in greater part black; 
posterior femora blackish before. 
Variant 4- — Cheeks and lower orbits black; upper margin of 
the meso-epimeron black, and no trace of an oblique band on the 
meso-episternum; only a very small spot on the meta-episternum, 
and the meta-postscutellum black : coxae except small apical por- 
tions black; posterior femora blackish before. 
Variant 5. — Lower orbit black, and onh" a spot on the lower 
portion of the cheek; the upper margin of the meso-epimeron 
very slightly yellowish immediately in front of the meta-epister- 
num but no trace of the oblique band on the posterior half of the 
meso-episternum; a small spot on the meta-episternum; the 
meta-postscutellum black; anterior coxae above and slightly at 
base beneath, and the intermediate and posterior practically 
entirely, black; intermediate and posterior trochanters black; 
anterior femora except before, and the intermediate and the 
posterior, black; posterior tibiae entirely black. 
Male. — Head. — Black; the following parts yellow, or pale 
yellow: ctypeus, labrum, mandibles, lower portion to lower half 
of cheeks and lower orbits, and a minute elongate spot at summit 
of inner orbit; antennae often not so deeply black beneath beyond 
the third segment, and rarely quite pale. Head behind eyes 
narrower than through them (difference sometimes very slight) : 
supra-antennal ridges prominent. 
Thorax. — Black; the following parts yellow, or yellowish: 
prosternum usually, the ventral face of the propleura entireU' or 
in greater part usually, the posterior dorsal margin of the lobes 
of collar narrowly or broadly and quite often the posterior lateral 
margin of the same in part, as a rule the lateral face of the pro- 
notum from slight lower portion to entirely, more rarely tlie 
