36 ENTOMOLOGICAL SOCIETY 



Hunter, Jenne, Johnson, Kraus, Marsh, Morgan, Piper, 

 Quaintance, Schwarz, and Van Horn, members, and Messrs. 

 Geo. G. Ainslie, Paul Hayhurst, and Albert Mann, visitors. 



Mr. Charles R. Ely, of Gallaudet College, Kendall Green, 

 Washington, D. C., was elected an active member. 



The first paper on the program, " A New Tetranychus " 

 by Mr. Nathan Banks, was read by title. It is as follows : 



A NEW TETRANYCHUS. 



[Acarina, Tetranychidse.] 



By NATHAN BANKS. 



Tetranychus opuntiae, n. sp. 



Color wholly bright red. Body rather more elongate than usual ; with 

 the usual bristles, but all very long, those on shoulders more than one- 

 half width of body, none of them on tubercles. Palpi long, penulti- 

 mate joint ending in a stout spur overlapping in part the next joint, 

 thumb with a very stout finger, truncate at tip and bearing a hair on 

 each side, one of them very stout, and on upper side of thumb a slender 

 finger. The mandibular plate long, tapering somewhat lo the rounded 

 tip, which is not emarginate in the middle. Legs large and long, and 

 having very long bristles ; femur I about twice as long as tibia I, and 

 tarsus I nearly as long as femur, the large mid-dorsal bristle of tarsus I 

 as long as the joint; claws four-cleft. 



This species occurs on prickly pear cactus (Opuntia} in 

 Texas ; it was collected by Mr. D. Griffiths of the Department 

 of Agriculture, mostly near San Antonio, in March. It is very 

 injurious to the cacti. 



The following paper, in the absence of Mr. Knab, was read 

 by the secretary: 



THE EARLY STAGES OF SAYOMYIA PUNCTIPENNIS SAY. 



[Diptera, Culicidse.] 

 By FREDERICK KNAB. 



Sayomyia punctipennis appears to be the most common 

 species of its genus in the upper Mississippi Valley and al- 



