THE CANADIAN ENTOMOLOGIST 263 



Length 1.2 to 1.6 mm. 



Locality : 



Nairobi, British East Africa (T. J. Anderson). - 



Food Plant: The apple. 



Described from a number of alate females preserved in spirit. 

 The colour appears greenish. It somewhat resembles De Geer's 

 Aphis pomi, but can at once be separated by (1) the different 

 antennae and (2) by the shorter cornicles. Aphis pomihas a greater 

 number of sensoria on segment 3 of the antennae, and more irregu- 

 larly disposed, and also some on segment 4. There were also some 

 nymphae in which the cornicles are shorter and thicker. 



OTHER SPECIES ON APPLE IN AMERICA. * 



Four other species are recorded on the apple in America, 

 namely: — 



1. Myz7(s persiccB Sulzer (Patch, Bull. 233, Maine Agri. 

 Exp. Sta., p. 267, 1914). ' 



2. Aphis brevis Sanderson (Bull. 74, Del. Coll. Agri. Exp. 

 Sta , p. 157, 1906). This has not so far been found in Europe. 

 It also feeds on quince, and Patch (p. 257) records it on Cratagus. 

 It migrates in summer to clover, sweet peas, etc. On hawthorn 

 it causes the leaves to become distorted into dark purple curls. 



3. Aphis bakeri Cowen (Bull. 31, Tech. Se. Colo. Exp. Sta., 

 p. 118, 1895) is also an apple pest in America and migrates to 

 clover (Gillette and Taylor, Bull. 133 Agri. Exp. Sta., Col. Agri. 

 Col., 1908). 



4. Aphis viedicaginis Koch, is recorded by Gillette (Journ. 

 Eco. Ent., I, p. 308, 1908, and Bull 133 Colo. Agri. Coll. Exp. 

 Sta., p. 32, 1908) on tender, new apple shoots. 



A NEW GENUS OF LELAPINE CHALCID FLIES FROM 



THE UNITED STATES. 



HY A. A. GIRAULT, GLENNDALE, MD. 



The following genus is similar to the Australian Uriolelaps 

 Girault, but there are no perfect wings, and only one ring-joint 

 (though apparently two by transverse central division of the one), 

 the antennae 12-jointed, the club 2-jointed. 



August, 1916 



