NEW BRITISH SPECIES, NOMENCLATURE, ETC. 119 



between an Allotria and a Cynips or Synergus, which I am 

 not able to explain. The name quercus gemmce has been 

 restored by Prof. Schenck (Nass. Naturw. Jahrb., Hft. xvii. 

 and xviii. p. 180) and Mr. Miiller (Annual, 1872, p. 5), who 

 coincide in thinking that the Linncean insect is not Si, Synergus, 

 but the real upheaver of the gall, = C. fecundatrix. Hart., 

 Germ. Zeit. ii. 189. It apppears difficult to believe that the 

 two following diagnoses can refer to the same insect : 



Lin.— Grisea seu testacea, 

 oculi fusci ; antenuce sub- 

 fusca3, longitudine cor- 

 poris. 



Hart. — Fusco-nigra : geni- 

 culis, macuhs 2-basalibus 

 lateralibus abdominis ano- 

 que rufis. 



In any case the only safe course is to retain C. fecundatrix. 

 Hart. A monograph of the genus Synergus, written from 

 a new point of view, and independent of the doubts which at 

 present surround it, is much to be desired. 



The Allotriides, Eucoelides, llegapelmides, Onychiides, 

 and Figitides, being (after Synergus) the rest of the " After 

 Gall-Wespen" of Hartig, have been too little studied at any 

 time, and of late years w^holly ignored in England ; for which 

 reason I was induced some time ago to endeavour to look 

 them uj), by collecting species and procuring their literature. 

 The results of that inquiry, imperfect and interrupted as it 

 was, now enable me nearly to treble the number of indigenous 

 species reported in Curtis's Guide (1837) — from which date 

 to the present I cannot find that any mention of these insects 

 has been made among us, except in Westwood's Introduc- 

 tion, vol. ii. 



The species of Allotria are parasitic upon Aphides, in 

 the same manner as the Braconids of the genus Ajj/iidius, 

 and of fourteen species wdiich I possess, the greater part was 

 obtained by sweejiing nettles. Notwithstanding their small 



