24 



of the United States, 392 species ; Coleoptera from various parts of the 

 U. S., 161 sp.; Lepidoptera, 77 species. 



* 42. Richard H. Stretch. Illustrations of the Zygas- 

 rudce and Bombycidre of North America. Vol. I. Part 1 to 9. 

 July, 1872 to Dec, 1878. [San Francisco, (Cal.,) June 1st, 

 1872 — February, 1874. j 8vo. pg. vii, iv, 242, with 12 fig- 

 ures in the text, and ten colored plates (1-10) containing 167 

 figures. 



Title and index ; preface. 42 Zyga?nida3 enumerated, 37 described and 

 figured, belonging to 16 genera; 92 Bombyeidas enumerated, 76 described 

 and figured, belonging to 34 genera. 



* 43. G. R. Crotch, M.A. Check List of the Coleo- 

 ptera of America, north of Mexico. Salem, Mass., Naturalists' 

 Agency, 1873 [1874]. 8vo. pg. 136. 



Enumerates " 7450 " [7456] species exclusive of varieties, belonging to 

 1484 genera and 83 families ; index of genera. 



* 44. The American Naturalist, vol. viii, as far as p. 384, 

 contains the following, and Nos. 45 to 63. 



Notice of Thomas' Synopsis of the Acrididas of North America (1873), 

 p. 53-54 ; of Lubbock's Monograph of the Collembola and Thysanura 

 (1873J, p. 54-55; of part of Packard's contributions to Hayden's 6th 

 Annual Report of the U. S. Geological Survey of the Territories (1873), 

 p. 219-220, fig. 62-68; of Girard's Les Insectes (1873), by S. H. S., 

 p. 221-222; of Vol. i, parts 8 and 9 (last) of Stretch's Illustrations of the 

 Zygamidse and Bombycidae of North America (1874), p. 223; of Crotch's 

 Check List of the Coleoptera of America north of Mexico (1874), p. 303; 

 of the intended republication of Hentz's papers on North American Spi- 

 ders, p. 319. 1 Obituary notice of Prof. Louis Agassiz, p. 62-63. 



* 45. P. Gennadius. A new iEgerian Maple Borer. 

 p. 57-58. 



Description and habits of Troch'dium acericolum. [See below, No. 48.] 



1 The paragraph on this subject at the foot of page 4 of Psyche was inserted by another 

 hand in my absence. B. J'. .1/. 



Psyche is issued post-paid once a mouth, by the Cambridge Entomolog- 

 ical Club, at the following rates, payable in advance to the editor : 



To subscribers in North America, one dollar; to subscribers abroad, 

 five shillings, six francs, or one and t-wo-thirds thalers. (Foreign sub- 

 scriptions may be sent in available postage-stamps.) 



Notes on the history, habits, and occurrence of insects and other Arthro- 

 pods are solicited from all observers. 



Advertisements will be inserted on reasonable terms. 



Address communications : Editor of Psyche, Cambridge, Mass., U. S. A. 

 No. 5. was issued September 14, 1874. 



