360 



PSYCHE. 



[May iSgq- 



Mexico before. I can only account for its 

 absence from tbe Biologia Cent.-Amer. by 

 supposing that it lias been confounded with 

 Cisthene unifascia, which it greatly resembles 

 in markings. 



ALEURODICUS MIRABILIS. 



Aleiirodcs mtrabilis Ckll., Psyche, June 

 189S, p. 325. Prof. C. H. T. Townsend found 

 this species in quantity at Minatitlan, Mex- 

 ico, April 25, 1S9S, on tlie under side of 

 Anona leaves. Fortunately, he secured a 

 single $ adult, which shows that the insect 

 belongs to Alenrodicus. The anterior wings 

 are slightly over 2 mm. long, and about ij- 

 mm. broad; white, with two very pale grey 

 bands; the first crossing the wing just before 

 the fork of the median vein, but interrupted 

 for a space below the vein ; the second a 

 dilute transverse cloud not far from the apex 

 of the wing. Body about 2 mm. long, exclu- 

 sive of the forceps, which is about | mm. 

 Color of body and legs very pale yellow; 

 base of abdomen white ; tliorax between 



wings light orange. Antennae orange at 

 the middle. Eyes pale greenish, not divi- 

 ded. Easily known from A. anonae Mor- 

 gan, by the markings on the wings of the 

 adult, and the lingua longer than the sper- 

 culum in the pupa. 



T. D. A. Cockerell. 



PROCEEDINGS OF THE CLUB. 



13 January, 1S99 (cent.). Mr. J. W. 

 Folsom said that Isotoma besselsii Pack, had 

 not been recorded since its original descrip- 

 tion from specimens found in 1S72 by the 

 "Polaris" expedition in lat. 81° 20' — 81° 

 50' N., but that he had found this interesting 

 collembolan in abundance last October on 

 our own coast, occurring in large colonies 

 under stones between tide-marks. Mr. 

 Folsom added that his examples of this well- 

 marked species agree perfectly with Pack- 

 ard's types, which he had already studied 

 through the courtesy of the U. S. National 

 Museum. A discussion followed as to the 

 probable influence of ocean currents in 

 disseminating maritime species. 



Guide to the Genera and Classification of the Orthoptera of Nortli America 

 north of Mexico. By Samuel H. Scudder. 90 pp. S°. 



Contains keys for the determination of the higher groups as well as the 

 (nearly 200) genera of our Orthoptera, with full bibliographical aids to further 

 study. Sent by mail on receipt of price ($1.00). 



E. W. WHEELER, 30 Boylston Street, Cambridge, Mass. 



A. SMITH & SONS, 269 PEARL STREET, New York. 



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