THE CANADIAN ENTOMOLOGIST. 301 



In my "Mosquito Notes"* I referred to Culex tceniorhyncus^ Wied., 

 as not having been found, so far as I knew, north of Florida. The mistake 

 was caused by my being so impressed with the statement (Theobald's 

 Monograph, Vol. I., pp. 352, 353, 1901), "Mr. Coquillett writes me this 

 species is not found north of Florida and Mexico," that I did not even 

 consult American authorities. This statement is, of course, superseded by 

 later work, and the species is found in the vicinity of Washington, D. C, 

 in Pa., and in N. J., etc., as shown by various authorities, notably the 

 interesting work on C. tczniorhyncus and G. sollicitans, by Dr. J. B. Smith, 

 of N. J., to whom, as to others, my apology is due. This is another very 

 variable species. Dr. Smith writes me that those he finds show much 

 variation as to abdominal markings, but that the leg maculation is constant; 

 those sent me from Florida and N. C, while fairly stable as to abdominal 

 markings, are not constant as to the band on the proboscis, it being at 

 times hardly more than a dot, while the last tarsal joint of the hind legs 

 shows all variations from pure white to almost pure brown, the two legs on 

 the same insect being often quite unlike. Mr. Coquillett tells me he also 

 finds these differences in the specimens sent him. 



NOTES ON SOME BEES IN THE BRITISH MUSEUM. 



BY T. D. A. COCKERELL, BOULDER, COLORADO. 



Spending the summer in England, I have, of course, hastened to 

 examine the types of F. Smith, and other bees contained in the collection 

 of the British Museum. The following notes elucidate some species 

 which had puzzled American entomologists, who had access only to the 

 descriptions : 



Cheiosiovioides rugifrons (Smith). 

 Chelostoma rugifrons, Sm., type ? . — Would be large for C/ie/ostojna; 

 a transverse ridge, with large punctures, below the antennae, and below 

 this a smooth shining impunctate depressed area, bounded on each side 

 by a vertical ridge, so that one gets the impression at first that the clypeus 

 is very broadly and deeply emarginate; the long labrum, seen from above, 

 looks like the end of an elephant's trunk, being broadened at the end, and 

 presenting a median elevation ; the " tooth near the base within " of the 

 mandibles is a shining tubercle ; the recurrent nervures join second 

 subniarginal cell at about equal distances from its base and apex respect- 

 ively ; the basal nervure just fails to reach transverso-medial ; claws 

 •Canadian Entomologist. Aug., 1904, p. 236. 



