So ENTOMOLOGICAL NEWS. [March, *o3 



3. Third submarginal cell wider above than distance from base of third 



submarginal to second recurrent nervure along cubital nervure, 

 last ventral segment of female normal ... 2 reniigatus Say. 

 Third submarginal as wide above as distance from second recurrent 

 nervure to base of cell below, last ventral of female prolonged 

 and concave 3 concavus Cress. 



4. Lateral teeth of scutellum well developed, last ventral segment of 



female not longitudinally concave 5 



Lateral teeth of scutellum in male obsolete, the scutellum simply lobed 

 at the sides, last ventral segment of female recurved and longi- 

 tudinally concave /[ penicilliferus s^. no\. 



5. First abdominal segment with a broad median crossband, second with 



a narrow apical band, third and following segments black, wings 



dark 5 bifasciatus Cress. 



Abdomen not so marked 6 



6. Spurs of four posterior tibiae ferruginous, concolorous with the tibiae . 8 

 Spurs of four posterior tibiae black 7 



7. Scutellar teeth ferruginous 13 



Scutellar teeth black 9 



8. Small, less than 9 mm., abdomen subglobose, black on first abdominal 



segment much attenuated laterally .... 6 compactus Cress. 

 Larger, about 11 mm,, abdomen elongate, the fifth segment of female 

 abdomen without a roughened hairy space, black on first seg- 

 ment a wide squarely truncate transverse band. 



7a. scelestus, var. tubercular is var. no v. 



9. Fifth abdominal segment of female at the tip not more coarsely sculp- 



tured than the remainder of the segment . . 7 scelestus Cress, 

 p-ifth abdominal segment of female with the usual rough hairy space. 



10. 



10. Legs, except coxae, ferruginous, wings hyaline, darker at tip.. . .11. 

 Femora more or less black, wings pale fuliginous in female, lighter 



in male 8. mercatus Fabr. 



I r. First abdominal segment wholly buflf except for a very slender black 

 longitudinal line which is more or less dilated at its middle into 



a punctiform spot 9. quadrifasciatus Ssiy . 



First abdominal segment with a large black space 12. 



12. Black on first abdominal segment triangular, attenuated laterally. 



10. texanus Cress. 

 A broad transverse black band on first segment, not triangular. 



1 1 . occidentalis Cre ss. 



Black on first segment more broadly triangular than texanus and legs 



darker. . . . : 12. lunatus Sax 9- 



13. Scutellar teeth long incurved, two spots on scutellum, anterior lateral 



corners of mesonotum and tubercles ferruginous. 



13. bardus Cress. 

 Scutellar teeth triangular when seen from above, remainder of scutel- 

 lum and mesonotum black 14. pusillus Cress. 



