SMULYAN: NEW ENGLAND TENTHREDELLA. 407 
strongly convex; abdomen generally bluish black 
grandis (Norton) , p. 410. 
Apical segments of antennae not white 3. 
3. Pectus, and as a rule meso-epistern\mi in part, and legs in greater part, 
pale ferruginous 4. 
Pectus, meso-episternum, and legs not ferruginous 5. 
4. Antennae black; clj^Deus, and lower portion to lower half of cheek, white; 
a minute elongate white spot at the summit of the inner orbit (may be 
discolored); a broad white band on the whole length of the meso- 
episternum rufopeda mellicoxa (Provancher), p. 419. 
Antennae in greater part dull ferruginous; clypeus with only a white spot 
on each side (sometimes coalescing) ; cheeks not white, and no spot at 
the summit of the inner orbit; meso-episternum with only a white spot, 
or band, on the posterior half. . . .rufopeda rufopeda (Norton), p. 418. 
5. Surface along upper posterior margin of eye to posterior margin of head, 
black (black sometimes not fully developed in front) ; pectus, and meso- 
episternum except a small longitudinally elongate spot on the upper an- 
terior portion along and usually touching the meso-epimeron, yellowish 
to straw color; pale spots at junctures of abdominal terga; venter straw 
color except slightly at apex angulifera (Norton), p. 432. 
Surface along upper posterior margin of eye black, pale j'ellow behind this 
to posterior margin of head; only an approximate! j^ right-angled band 
on the meso-episternum, and only posterior mesial half of pectus, straw 
color; dorsal surface of thorax beyond collar much marked with pale 
yellow; venter not so extensively straw-colored 
lobata maculosa Smulj''an, p. 425. 
6. Abdominal dorsum black and ferruginous, or pale ferruginous 7. 
Abdominal dorsiun black and yellowish to brown. Front above antennae 
and vertex with a large black spot distinctly trilobed anteriorly and 
somewhat less distinctly laterally; surface akmg it^)per posterior margin 
of eye black, yellow behind this to the posterior margin of the head; dor- 
sal surface of thorax much marked with yellow; pectus, and mesopleura 
in greater part, yellow verticalis (Say), p. 427. 
7. Front below antennae yellowish, or straw color S. 
Front below antennae black 11. 
8. Front above antennae and vertex with a large black spot distinct!}- tri- 
lobed anteriorly and somewhat less distinctly laterally; a well-marked 
yellowish V-spot on prcscutum 9. 
Front above antennae and vertex with no such spot; prescutum black, or 
only witli a minute yellow spot on eacli side 10. 
9. Surface along upper posterior margin of eye to posterior margin of head, 
black (black sometimes not fully devclo]ied in front) ; pectus, mesojileura 
in greater part, coxae, and pronotum in greater part, yellowish to 
straw color sccunda (MacCillivray), p. 435. 
Surface along upper posterior margin of eye black, straw color behind this 
to posterior margin of head; mesopleura largely black, only an approxi- 
mately right-angled straw-colored band on mcso-epistcrnuin, and pectus 
