116 Mr. P. Cameron on some 



describes tlie antenna! club in the female as " hand dis- 

 creta," which agrees tolerably well with Foerster's descrip- 

 tion. Gracilis agrees very closely with Dalei in coloration, 

 it having the " scutello, foveo lanceolata metathorace, 

 pedibusque rufo-testaceis." 



Gracilis is in the collection of the Rev. T. A. Marshall, 

 and is, I believe, correctly named by that gentleman, 

 although the scutellum is black in his specimen. The 

 antennas are, however, very different from those of Dalei, 

 the 3rd and following joints being short, thicker and more 

 globular; the antennae, too, being shorter than the body, 

 which is much larger, stouter, and not so much compressed 

 as in the other. The alar neuration is the same in the 

 two species.* 



Whether longicornis be the $ of gracilis or not is a 

 point which I cannot at present determine from the 

 limited material at hand, but I am inclined to believe 

 that the two are quite distinct. 



P. Dalei was taken by Mr. J. C. Dale at Glanville's 

 Wooton, Dorsetshire. 



Obs. — Many of Foerster's genera in this group of 

 CynipidcB are not easily made out, especially with the 

 males (with one or two exceptions, when the males are 

 easier identified than the females), and many of the cha- 

 racters he relies upon for the formation of his genera — 

 especially those drawn from the form of the antennae — 

 appear to me to be merely sexual, and not of generic 

 value. The antennae in the males are very similar in the 

 Eucoelides, while there is great variation with these 

 organs in the females. 



Hexacola, Foerster, I. c, p. 347. 



I have taken a specimen of Hexacola hexatoma, Htg., 

 at Bonar Bridge, Sutherlandshire, and another in a moist 

 meadow along the banks of the Allander, near Glasgow. 

 From this it would appear to be a widely-distributed 

 species. 



• Mr. Marshall, in his list of CynipUlfP in the Ent. Ann. for 1874, 

 refers gracilis to the genus Cofhona.y/i>:, \\hich, however, is not the case, 

 that genus, inter alia, not having a hair fringe. Mr. Marshall probably 

 had mentally confounded gracilis, Dbin., with gracilis, Htg., which is a 

 true Cothoiiasjns. 



