﻿AMERICAN CYNIPID GALL WASPS WELD 317 



segniented antennae. Length 1.8-2.7 mm. Average of 20 specimens 

 2.42 mm. 



Tyj)es. — U.S.N.M. No. 60105 : Type female, allotype, and six para- 

 types. Paratypes also in A.M.N.H., C.M.N.H., A.N.S.P., C.A.S., and 

 M.C.Z.1 



Hahitat. — Emerged early in May from galls of Diastrofhus radicvmi 

 Bassett at East Falls Cliiirch, Va. Part of the paratypes are from 

 galls of D. hassettii Beutenmiieller, from Washington, D. C. 



SYNOPHROMORPHA RUBI, new species 



Differs from S. ferricola in having the parapsidal grooves widely 

 separated behind with a median groove wanting or a mere notch. 

 Females measure 2.2-2.9 mm. Average of 15 specimens 2.46 mm. 

 Males 1.6-2.2 mm. Average of six specimens 1.77 mm. 



Types. — U.S.N.M. No. 60106 : Type female, allotype, and four para- 

 types. Paratypes also in A.M.N.H., C.M.N.H., A.N.S.P., C.A.S., and 

 M.C.Z. 



Habitat. — The types emerged in July from galls of Diastrophus 

 cuscutaeformis Osten Sacken collected at Winnetka, 111. 



Genus CEROPTRES Hartig 

 CEROPTRES GBTUSILOBENSIS Weld 



Diplolepis q.-oMusiloiae Kaksch, Zeitschr. fiir Ges. Naturw., vol. 53, pp. 292, 293, 



pi. G, figs. 3, 3a, 3b, 18S0. 

 C'ynips obtusilohae Daixa Tokre, Catalogus hymenopterorum, vol. 2, p. 47, 1893 



(cites Karsch). 



The Karsch gall in Berlin is an abrupt terminal stem swelling on 

 Quercus stellata^ from Texas, labeled Cynips quercus ohtusilohae. 

 The three type adults reared from it, which Karsch considered to be 

 the makers of the gall and related to Neroterus, are all guest flies of the 

 genus Ceroptres. Dalla Torre was the first to apply a binomial desig- 

 nation to the species. As obtusilohae was preoccupied in Ceroptres in 

 1885 by Ashmead (Trans. Amer. Ent. Soc, vol. 12, p. 300) the name 

 obtusilobensis was proposed in the "Hymenoptera of America North of 

 Mexico," p. G14, 1951, for the Karsch species. 



Genus LIPOSTHENES Foerster 



LIPOSTHENES GLECHOMAE (Linnaeus) 



Cynips glechomae Linnaeus, Systema naturae, ed. 10, p. 553, 1758. 

 Aulax latreillei Kieffee, Ent. Zeit. Wien., vol. 17, p. 257, 1898. 



Linnaeus did not describe his species, but he cited seven ref erence,s ; 

 six of these refer to galls only. However, in one, Reaumur (Memoirs, 



1 See p. 315 for explanation of abbreviations used throughout tliis paper. 



