May, 1880.] 265 



NOTES ON TENTRREDINID^ AND CTNIPID^. 

 BY P. CAMEEON. 



(Continued from page 250). 

 Emphytus calceatus. — The larva, with black marks along the sides, 

 mentioned in Fauna of Scotland, Hymen., p. 20, is a form of E. calceatus, 

 and has no connection with Poecilosoma. 



Fenusa melanopoda. Cam. {nigricans, Thorns.), is an alder feeder, 

 as I know from having bred it. My conjecture (Proc. Nat. Hist. Soc. 

 Grlas., 1875, p. 7) that it was Zaddach's F. pnmila (Beschr. neuer oder 

 wenig-bek. Blattw., p. 29, f. 12, copied also by Andre, Species des 

 Hymen., pi. xiv, f. 15, 16, under the name of pumila) is, therefore, 

 correct. Goureau (Ann. Soc. Ent. Fr. [4], viii. Bull., pp. 17, 18) 

 likewise described its habits under the name oi pumila. 



Nematus Zetterstedti, Dbm. — M. Andre (1. c. Catalogue, p. 14) 

 sinks this name for miniatus, Htg., described two years after the pub- 

 lication of Dahlbom's Clavis, because no description was given by 

 Dahlbom of Zetterstedti. This is true, but then it is figured (fig. 5), 

 which is as good as a description, seeing that it is perfectly recognisable. 

 I consider, therefore, that Dahlbom's name should stand. 



In the same work (p. 152), M. Andre re-names Nematus hrevi- 

 cornis, Foerster, Foersteri. So far as I know, Foerster is the earliest 

 author who used the word hrevicornis for a Nematus, and I am at a 

 loss to know why his name is now changed. It is true that Dahlbom 

 applied the name to a Nematus (Conspectus, p. 7, No. 43), but he 

 neither described nor figured it, and it remained undescribed until 

 Thomson, in 1871, gave a description of it. There being thus two 

 distinct species bearing the same name, it is clear that one of them 

 must be re-named, and Dahlbom's (or rather Thomson's) name being 

 the latest must give way. 



Nematus togatus, Zaddach. — Schr. Ges. Konigsb. 1875, pi. 6, fig. 3. 

 I found some larvae of this species in Arran last autumn, on hazel, but 

 did not rear the flies. They are, however, so distinct that I am certain 

 of their identity. No description has yet been given of the species in 

 any stage. 



Nematus curtispina, Thoms., Hym. Scand., i, 152, 84, is a good 

 species, and not a vai'iety of miliaris, as I once thought. It differs 

 in both sexes from miliaris (viridis'), not to a large extent, certainly, 

 while Mr. J. E. Fletcher finds that the larva — which has pink dorsal 

 lines — is constant in coloration. These green Nemati are in a some- 

 what confused state, and their specific distinctions can only be 

 elucidated by rearing both sexes from the larvae. 



