2l6 ENTOMOLOGICAL NEWS [May, *IT 



shorter than the third, not more than twice the length of the first, in 

 having slightly narrower fore wings and in being brown* instead of 

 black. From conotracheli it differs first in being brown in color, sec- 

 ondly and of more importance, in having a shorter second funicle 

 joint, not slightly but distinctly shorter than the third, also narrower 

 and in having from 8-14 cilia in the midlongitudinal line of the posterior 

 wings nearly as in sordidata. From the species pullicrura it differs 

 also in being brown in color but more noticeably, as in conotracheli, 

 in having the proportionally shorter second funicle joint, the longer 

 midlongitudinal line of discal cilia in the posterior wings ; also slight- 

 broader fore wings (from 10-13 longitudinal lines of discal cilia across 

 the widest blade portion). The male is similar to the female excepting 

 the secondary characters of sex. 



The following details are all considered necessary to add here : 

 Color uniformly brown, the abdomen darker, the antennae and tibiae 

 somewhat lighter, the trochanters, knees, tips of tibiae and proximal 

 three tarsal joints pallid yellowish; distal joint of club longer than 

 the other. 



Male. The same. Antennae 12-jointed, normal; funicle joints shorter 

 than in sordidata, nearly as in conotracheli. 



Described from one male and one female mounted in bal- 

 sam on separate slides, each slide labelled, "Fred. Knock, Pre- 

 parer. Order Hymenoptera, Family Mymaridae, Genus Eus- 

 tochus, Species atripennis. $ (or $~). A Fairy Fly. Spot 

 lens 2-inch to */2-inch." 



Habitat. England (London or vicinity ?). 



Types. Type No. 13,663, United States National Museum, 

 Washington, D. C. 



One male, one female in balsam, two slides. 



At the Massachusetts Agricultural College Dr. Guy Chester Cramp- 

 ton has been appointed associate professor of entomology. Dr. Cramp- 

 ton is a native of Alabama. He graduated from Princeton in 1904, 

 took two years of graduate work at Cornell University, receiving his 

 M.A. there in 1905, followed by two years at the universities of Frei- 

 burg, Munich and Berlin, where he received his Ph.D. in 1908. He was 

 an instructor in biology at Princeton from 1908 to 1910 and since the 

 summer of 1910 has been professor of zoology at Clemson College. 

 Science. 



* It must be taken into consideration that the specimens have been 

 in balsam for many years and may have faded from black to brownish 



