416 



PSYCHE. 



[August iSg6. 



and there is a verv distinct one on the thorax, 

 all just as figured on Mr. Cooley's plate. I 

 entirely fail to find any corresponding patch 

 on the upper side of the hind wings. There 

 is a small space devoid of scales just below 

 the frenulum, it is true, but the microscope 

 shows nothing on it more than the simple 

 wing membrane. 



As to the sound this insect is said to pro- 

 duce, it may more plausibly be attributed to 

 another organ. There is, on the side, on 

 the anterior edge of the metathorax, a semi- 

 circular, bladder-like structure, about 3mm. 

 long, with a series of fine curved teeth along 

 its straight front edge; the teeth are rather 

 long and curve dorsally. The structure is 

 situated directly below the hind wing, on 

 which near the base of cubital vein, is a 

 round pointed, chitinized knob, which, may 

 serve for rasping on these teeth. — H. G- Dyar. 



Recent Publications. — The brief space 

 left in the present number may be utilized 

 in calling attention to some recent publica- 

 tions. First, Packard's Monograph of the 

 N. A. Notodontidae, a quarto volume with 

 49 plates, inostly colored, besides maps; 

 special attention is given to the different 

 stages of the caterpillar and a vast profu- 

 sion of remarkably fine figures are given; it 

 is of the utmost importance for the study of 

 phylogen3'. Another quarto volume by 

 Reuter on the Palpi of Rhopalocera (600 pp. , 

 6 pi.), draws attention to an overlooked 

 structure on the inner side of the basal joint 



whicti he describes in a multitude of forms, 

 and at the same time essays a classification 

 of butterflies, which is well worthy of close 

 attention. The Gypsy Moth Report of the 

 Mass. Board of Agriculture by Messrs. Fer- 

 nald and Forbush is a notable work of over 

 500 pages Svo with 67 plates, scattered 

 through the volume (but without summary 

 explanation) which reflects the utmost credit 

 on the ingenuity of resource, industry and 

 skill of the authors ; whether or not we agree 

 with their conclusions or approve the State's 

 vast expenditure, we can but thank them for 

 this admirable piece of work; only two or 

 three insects have had as much attention 

 given them, and they are mostly American. 

 Space only allows the briefest mention of 

 some other American publications: The 

 Crambidae of North America by C. fl. Fer- 

 nald with its six most exquisite chromolitho- 

 graphs and three other plates of structure; 

 10 genera and over 80 species are described, 

 with synopses of genera and species. E. B. 

 Felt gives an excellent essay on the scorpion 

 flies with a couple of plates and interesting 

 accounts of their larval habits, etc. T. D. A. 

 Cockerell publishes an account of 70 N. A. 

 bees of the genus Perdita, mostly new, with 

 much very interesting introductory matter 

 and many biological notes. V. L. Kellogg 

 Issues an octavo volume with 14 plates on 

 Mallophaga, mostly Californian, a inuch 

 needed work for America. 



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