THE CAXADIAX ENTOMOLOGIST. 77 



being a little nearer to the base on the costal than on the dorsal margin, 

 and the wing before the fascia has a grayish hue, occasioned by minute 

 white dusting, and Dr. Clemens does not mention these particulars in 

 'pracmatiircUa ; but a more decided difterence is that in p7'aeinaiurelia the 

 fascia is " just behind the middle," whilst in this species it is just before 

 it. ]Nly specimens are near E. gregsoni, as figured by Mr. Stainton, but 

 have less white at the apex. But the species of this group are very 

 -difficult to distinguish without comparison of bred specimens, and I have 

 not thought it necessary to separate my specimens from pracmaturclla. It 

 is the only true Elo.chisia ihat I have thus far met with here, though some 

 of the immediately preceding genera approach this genus closely. Like 

 praeiuatiirclla, my specimens appear early in April. 



BOOKS RECEIVED. 



The first number of '* The Cincinnatti Quarterly Journal of Science," 

 published in January, came to hand in due season. It is a well got up 

 octavo serial of 96 pages ; editor and proprietor, S. A. ^liller, Cincinnatti, 

 Ohio : price, three dollars per year. Among the more interesting original 

 papers contained in this number we notice one by our esteemed friend 

 and contributor, V. T. Chambers, of Covington, Ky., on Fresh Water 

 Entomostraca, and among the selected articles, '' Facts in the Physiology 

 of Spiders and Insects,'"' and '' ^vlovements of Insects on Dry, Polished 

 and Vertical Surfaces," both by John Blackwell, from the Jour, and Pro. 

 of the Linnean Society. In addition to these there are a number of 

 interesting original and selected papers on Geology, Botany, Zoology, &:c. 

 We sincerely wish this new journal success. 



Illustrations of the Zyga^nidn^ and Bombycidie of North America, by 

 Richard H. Stretch, San Francisco, vol. i, parts S and 9. These two 

 parts issued together complete the first volume of Mr. Stretch's excellent 

 work on the Zygsenidae and Bombycidae. These latter parts contain three 

 colored plates, two of moths, illustrating 29 species, and one of larvae, 

 containing 1 1 species. The whole volume consists of 242 pages octavo 

 of letter-press, with ten well finished colored plates, on each of which a 

 number of species are faithfully delineated. In this work — in addition to 



