240 THE CANADIAN ENTOMOLOGIST. 



Dear Sir : In a recent number of the Canadian Entomologist is 

 a short note by Mr. J. Alston Moffat, part of which concerns two species 

 of Cylletie, pictus and robinice. As there ap])ears to be some difficulty in 

 properly distinguishing these species, it is probable that a note in the 

 Entomologist would assist in making more generally known the char- 

 acters published by me a short time since (Trans. Am. Ent. Soc, 1880, 

 p. 134, pi. ii., fig. 8). 



If we examine the under side of the two species, noting the form of 

 the prosternal process, it will be observed that this in robmice is nearly 

 square, so that the front coxae are moderately widely separated. The 

 second joint of the hind tarsi is densely pubescent over its entire surface. 

 The male antennae are rarely longer than three fourths the length of the 

 body, and but little if any stouter than those of the female. Generally 

 the ^^'-band nearly always joins the transverse band at the suture. 



C. pictus, however, has a narrow prosternum, nearly twice as long as 

 wide. The male antennae are much stouter and at least a fou'-th longer 

 than the body. The W-band rarely joins the transverse band. On the 

 hind tarsi the second joint is nearly glabrous along its middle. 



The two species differ also in habitat and time of appearance, pidus 

 living in the hickory and appearing in early spring, while robmia; bores the 

 locust and appears in the autumn. Hoping these few notes will prove 

 acceptable to your readers, I remain, yours truly, 



Philadelphia. Dec, 1882. Geo. H. Horn. 



A CORRECTION. 



In the October {1879) number of the Canadian Entomologist ap- 

 peared a short note by the writer on the larvae of Lachnosterna fiisca. 

 These larvae have, by subsequent rearing to the perfect state, proven to 

 belong td AUorhina ( Gyvinetis) tiitida. L. O. Howard. 



Dear Sir : I am satisfied from a recent examination of the imago 

 reared from it, that the larval description on page 14, vol. 12 of Can. 

 Ent., should apply to Agrotis Incivis Guen., instead of to A. Lubricans 

 Guen. C;. H. French, Carbondale, Ills. 



|l'rintf<i January 10, 1883.1 



