442 



PSYCHE. 



April 1893. 



while some of much greater significance are 

 omitted. 



In an interesting paper on Acronvcta, 

 which has been for some time running 

 through the pages of the Entomologists' 

 Record, Dr. T. A. Chapman states that in its 

 two last stages the larva of Cuspidia altii 

 emits a strong odor when irritated. "The 

 odor is suggestive of an escape of ordinary 

 illuminating coal gas. A friend of chemical 

 and engineering experience to whom I sub- 

 mitted some examples says the odor is that of 

 carburetted hydrogen. The scent is emitted 

 most strongly when the larva is ready to 

 search for a place to pupate in. It is so 

 strong that I have several times wondered 

 whether there was not an escape of gas in 

 the room in which the larvae were. It is 

 perhaps proper to suggest that this odor is 

 protective, and in this sense associated with 

 the brilliant 'warning' color and conspicuous 

 station (on the middle of the upper surface of 

 a leaf) of the larva." 



H. F. Wickham in a recent bulletin of the 

 Universitv of Iowa gives a detailed account 

 of his search for Coleoptera in southern 

 Alaska. 



A paper on the Gryllidae of Indiana just 

 published by W. S. Blatchley (Proc. Ind. 

 acad. sc, 1891), enumerates sixteen species, 

 belonging to the genera Tridactylus (1), 

 Gryllotalpa (2), Gryllus (3), Nemobius (3), 

 Anaxiphus (1), Phylloscirtus (1), Orocharis 

 (1), Apithes (1) and Oecanthus (3). 



Bolivar has recently published in the 

 Annales of the French entomological society 

 a detailed account of a new genus of purblind 



cockroaches (Nocticola) from caverns in the 

 island of Luzon, one of the Philippines. Its 

 structure is so remarkable that he believes it 

 should form a tribe apart among cockroaches. 

 The eyes consist of a few clustered ocelli. 

 Two species were found. 



In an abstract of a paper on the Descent of 

 the Lepidoptera, published in the Proceed- 

 ings of the American association for the 

 advancement of science, Prof. J. H. Corn- 

 stock proposes their division into two great 

 groups, the Frenatae and Jugatae, according 

 as the line of development has been toward 

 the production of a frenulum connecting fore 

 and hind wings during flight to insure their 

 synchronous action, or of a so-called jugum, 

 a special lobe of the fore wings answering the 

 same purpose. Details are reserved for the 

 final paper. 



Ruhl has begun the publication of an 

 extended work entitled Die palaearktischen 

 grosschmetterlinge und ihr naturgeschichte, 

 to be completed in seventy-five parts. The 

 first (double) part has been issued. 



A profusely illustrated work of unusual 

 extent on the genus Ornithoptera by R. H. 

 F. Rippon is publishing in England. Five 

 of the twenty parts are already issued. 



The last number of Psyche (203) was issued 

 March 6th, delayed for the plate by a mistake 

 of the printer. All preceding numbers of the 

 current volume have been issued on the last 

 day of the month preceding that for which 

 thev were issued ; except that when that day 

 fell on Sunday, they were issued one day 

 earlier. 



A. SMITH & SONS, 114 FULTON STREET, New York. 



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