1899] ENTOMOLOGICAL NEWS. 55 



the fact that while the climate along the lake shore is really 

 milder in Winter than it is a few miles farther inland, yet the 

 ice in the lake, in Spring, usually remains long enough to 

 delay the putting forth of the early growth of cane, and also 

 tends to keep the insect longer in hibernation. It is also inter- 

 esting to note that although the hibernating adults were 

 placed under a comparatively high temperature, probably 

 from 65° to 80° Fah., yet they did not bestir themselves until 

 about the time when proper facilities for oviposition would be 

 offered them in their native haunts. 



EXPLANATION OF PLATE. 



Ampeloglypter sesostris (Lee.) : a, b, respectively, back and 

 side view of adult ; c, larva ; d, pupa ; e, galls in grape cane ; 

 /, Myiophasia cenea; g, pupa case of same; h, Catolaccus tylo- 

 dermoe; i, Calyptiis tibiator. 



THREE NEW SPECIES IN THE. GENUS DIPLOPLECTRON 



FOX (Hymenoptera). 



By William H. Ashmead, 



Assistant Curator, Division of Insects, United States Xational 



Museum . 



Up to the present time but a single species is known in the 

 genus Diploplectron Fox, the type X>. (Liris) brunneipes Cres 

 son. Recently, in arranging a large collection of Hymenoptera, 

 presented to the United States National Museum by Professor 

 Carl F. Bader, three additional species were recognized, which 

 are described below : 



TABLE OF SPECIES. 



Black or mostly black, 2. 



Uniformly pale ferinigiuous, except a spot between the ocelli 

 base of metathorax above and more or less of the three 

 or four apical abdominal segments, which are black or 

 dusky. (1) D. ferrugilous Ashm., n. so. 



2. Pronotum and tegiilae brownish-yellow. 



Mandibles, except tips, four basal joints of antenna;, tegulae, 

 anterior and middle legs and hind tibse pale ferruginous. 



(2) D. brunneipes Cr. 



