392 ENTOMOLOGICAL NEWS. [Dec., '06 



coming greater in width until the whole venter is pollinose. 

 Band of the third overlaps the posterior margin of the second 

 segment underneath. Legs black, on the outer part of the 

 basal half of the hind femora, and of all the tibiae gray polli- 

 nose. Hair everywhere black. Halteres and calypteres dark 

 brown, wings light brown, veins at base tinged with yellow. 

 Length of the body 17.5 mm. Length of wings 14.5 mm. 

 Width of head 7 mm. Width of front at vertex 2^3 mm. 



This species belongs to the fontinella group, and is closely 

 allied to C. similis Johnson, C. atrox Clark, and C. tenebrosa 

 Coquillett. It differs from C. similis Johnson, and C. atrox 

 Clark in not having the oblique tuft of yellow pile in front of 

 the wings, and the face is without the two large pollinose spots 

 at the lower margin of the eye. It can be separated from C. 

 tenebrosa Coquillett by the pollinosity of the abdomen, and th^ 

 fissure on each side of the antennary pit being narrower and 

 more shallow than in C. tenebrosa. 



Mr. Swenk's table of the genus Cutercbra, which appeared 

 in The Journal of the New York Entomological Society, pages 

 181-185, December, 1905, may be amended to read as follows : 



5. Pleura mostly yellow or white 6. 



5. Pleura wholly black or at most with a small tuft of yellow pile in 



front of the base of wing 15. 



********.*****-* 



15. Pleura with a tuft of yellow pile in front of the base of wings ; lower 

 margin of the eye with two large pollinose spots 16. 



15. Pleura without such tuft of pile, lower margin of eye without the 



large pollinose spots 17. 



16. Last abdominal segment more or less pollinose (Mexico). 



(terrisona Walker) atrox Clark. 



16. Last abdominal segment entirely steel blue, not pollinose (N. M.). 



similis Johnson 



17. Abdomen destitute of pollen (Cal., Ore., Col., Wyo., S. D., Nebr.). 



tenebrosa Coq. 



17. Abdominal segments f pollinose ventrally and laterally (Northwest 

 Nebr. ) cyanella Jones. 



A CORRECTION. Dr. Dyar has kindly called my attention to the fact 

 that the insect I described in the October NEWS as Monolenca spadicis is 

 the same as his Euclea dolliana (Proc. U. S. Nat. Mus., xxix, 369, 1906). 

 JOHN A. GROSSBECK. 



