228 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.41. 



cordleyi Cockerell, 1903^ Corvallia, Oregon (Cordley). 



Male 7 mm.; abdomen subclavate. 

 cornelliana Cockerell, 1908. Ithaca, New York (N. Banks). 



A Gnathias allied to N. physura. 

 corvallisensis Cockerell, 1903. Corvallis, Oregon, May 24 (Cordley). Tab. 6. 

 *crassuZa Cockerell, 1903. Louiaiana. Tab. 10. 

 Resembles N. modesta. 



Type.— Cat. No. 13171, U.S.N. M. 

 *craw/br(/i Cockerell, 1905. Virginia Dale, Colorado (Bishopp). Tab. 1. 



Male; Bull. Amer. Mus. Nat. Hist., vol. 22 (1906), p. 438. 

 *cressonii Robertson, 1893. Illinois (Robertson). Tab. 12. 

 cressonii trevoriana Cockerell, 1905. Olympia, Washington State (Kincaid). 



No subdiscal cuneate spot on fourth abdominal segment. 

 *crotchn Cresson, 1878. Fort Tejon, California (Crotch). 

 croicAw m'^n'or Cockerell, 1903. S.California. Tab. 4. 

 *crttm Cockerell, 1903. LasCruces, New Mexico, August (Townsend). Tab. 1,8, 10. 



Closely allied to N. neomexicana. 



Female; Entomologist, 1907, p. 265. 

 crudelis Cresson, 1878. Georgia (Morrison). 



"This and grandis are our largest species" (Cresson, 1878). 

 cubensis Cresson, 1865. Cuba (Gundlach). 

 *cuneata Robertson, 1903. Illinois. Tab. 1, 9, 12. 



Distribution; Proc. Acad. Nat. Sci. Phila., 1903, pp. 601-602. 

 cuneata decemnotata Robertson, 1903. Illinois. Tab. 12. 

 *cuneata octonotata Robertson, 1903. Illinois. Tab. 12. 

 *cuneata quadrisignata Robertson, 1903. Illinois. Tab. 12. 

 cuneata sexnotata Robertson, 1903. Illinois. Tab. 12. 

 *cttsimcma Cockerell, 1911. West Cliff, Colorado (T.D.A. Cockerell). Suhgen. Gnathias. 



Type.— Cat. No. 14023, U.S.N. M. 

 *cymhalarise Cockerell, 1906. Near Lake George, Colorado, June 18 (Rohwer). 



Probable male (close to illinoiensis); Entomologist, Dec, 1907, p. 268. 

 *dacotana Cockerell, 1903. Brookings, South Dakota. Tab. 1, 10, 11. 



Also in Colorado and Montana. 

 davidsoni Cockerell, 1903. S. California. Tab. 4. 

 decempunctata Cockerell, 1903. S. California. Tab. 4. 

 *dentarix Robertson, 1903. Illinois (Robertson). Tab. 5, 12. 

 *denticulata Robertson, 1902. Illinois (Robertson). Tab. 12. 



Formerly confused with N. articulata. 

 depressa Cresson, 1863. Maine. 



Female with a depression on fifth dorsal abdominal segment. 



Table of species allied to depressa; Ent. News, July, 1908, p. 323. 

 depressicauda Cockerell, 1908. Falls Church, Virginia (N. Banks). 



Group of N. depressa. 

 dilucida Cresson, 1878. Colorado (Morrison). Tab. 1. 

 ednse Cockerell, 1907. Boulder, Colorado, April 10 (Edna Baker). 



Superficially much like N. ornithica. 

 *edwardsii Cresson, 1878. California (Henry Edwards). Tab. 4, 5. 



Resembles N. superba. 

 edwardsii australior Cockerell, 1903. Los Angeles County, California (Coquillett). 



Tab. 4. 

 *electa Cresson, 1863. Illinois; Connecticut. 



Female with sides of face, clypeus, labrum, mandibles, posterior orbits, and a 

 minute spot on each side of ocelli, ferruginous tinged with yellowish; abdomen 

 yellow-banded above, beneath piceous, immaculate. Male with clypeus, etc., 

 yellow. 



