THE CANADIAN ENTOMOLOGIST. 311 



and middle legs below the coxiv, the femora more or less infuscated, the 

 hind trochanters, and a ring on the base of the hind tibiae, white. 

 Length, 6 mm. 



Habitat. — Sherborn, Mass., Mr. A. P. Morse, collector; Connecticut, 

 Mr. \V. A. Nason, collector. No. 5829. 



Enipria cautd, n. sp. — Female. Clypeus with a median carina, 

 angularly emarginate, with angular lobes ; postocellar area not carinate ; 

 the ocellar basin wanting, the median fovea a pin-hole pit ; the ocellar 

 and interocellar furrows faint ; the third segment of the antennre longer 

 than the fourth ; the saw-guides convex above and oblique below, roundly 

 truncated at apex; the body black, with the clypeus, labrura, collar, 

 tegulcT, front and middle trochanters, and the hind tib'iii and tarsi, white. 

 Length, 6 mm. 



Habitat, Ithaca, N. Y. 



(To be continued ) 



DANIEL WILLIAM COQUILLETT. 



A gap in the ranks of active entomologists and a feeling of personal 

 loss to all who knew him has been created by the death of Mr. D. W. 

 •Coquillett, of the United Stales Bureau of Entomology and National 

 Museum, who died at Atlantic City on July 8th. 



In systematic entomology he had a knowledge of Diptera as wide as 

 it was unique ; in economic entomology he has the credit of being the 

 first to discover and demonstrate the value of hydrocyanic acid gas as an 

 insecticide. 



Born in 1856, near Woodstock, 111., we find him in 1880 contribut- 

 ing an article on "Larvae of Lepidoptera" to Prof Cyrus Thomas's Tenth 

 Illinois Report, and a "Report on the injurious insects of Northern 

 Illinois" to the Illinois State Entomologist's Report of the following year. 

 In 188 [ he became assistant to the State Entomologist of Illinois. 

 Later, on account of his health he removed to Los Angeles, California, 

 and while there he joined the staff of the United States Bureau of 

 Entomology, in 1885, as field agent in the work on the Scale leery a 

 purchasi Mask. The results of this work during the succeeding two or 

 three years were of such a nature as to secure for him a singular distinc- 

 tion as an economic entomologist. He communicated to Prof. W. G. 

 Johnson the circumstances attending his chief discovery. "During the 

 summer of 1886," he wrote, "I was employed by the United States 

 Department of Agriculture to carry on a series of experiments at Los 



