]46 Journal New York Ent. Soc. [Vol. ii. 



of the palpus, and the size was .3 of an inch. I have from Long 

 Island, N. Y., and Washington, D. C, adult males and females of 

 L.foniiosi/in, extremely similiar to the young, but little larger than 

 Wood's specimen, and as large as L. ventricosum. They agree with 

 the description throughout, black trochanters, dark bands on the 

 legs, and in the c? the tibia wholly dark; a prominent vase-mark 

 \x\ the o, i'l the -^ indistinct; the legs are shorter and much thicker 

 than in A. vcntricom-n, and the cf abdomen is not near as conical. 



Liobunum ventricosum Wood. This has the trochanters no 

 darker than the dorsum, the vase-mark obscure, and the legs un- 

 banded. The legs are much more delicate than in L. formosian. 

 I have it from New Hampshire (Mrs. Slosson) and Long Island, N. Y. 



Leptobunus grande .S'(?i'. Prof. Weed (Ohio Phalangidee) 

 thinks L. macidosmn Wood may be the young of Say's species; but 

 Wood described the genitalia of his species so it cannot be young. 



NOTE ON THE DEVELOPMENT OF 

 DELTOCEPHALUS INIMICUS Say. 



By F. M. Webster. 



Several years ago, on November 11, a number of adults were 

 placed on young wheat plants that had been reared indoors, and 

 hence were free from affection by insect attack. The females 

 began at once to oviposit in the tissue of the leaves, and the young 

 could be observed developing within the eggs, especially after 

 they had become well advanced. Young were especially noticeable 

 just prior to their emerging by their eyes being jet black. The 

 young moulted a few days after hatching, and, so far as I could 

 observe, but twice afterwards. December 22, one of the first 

 individuals to appear moulted for the last time, and on the follow- 

 ing day adults were out in numbers. It will be observed that 41 

 days were required for the development of the insect from ^<gg to 

 aduit. It is not unlikely that the species hibernates in the egg 

 state in the leaves of grass, though it would seem possible that it 

 may also live over as adults. My wheat plants were kept growing 

 in glass tubes, probably an inch and a half in diameter, and in a 

 temperature of probably not far from 70'' Fah. 



Material, kept for description, has been spoiled by age and it 

 is now impossible to describe the earlier stages from it, else such 

 would be included in this note. 



