108 PROCEEDINGS OF THE 



alU]}ennis, etc.; in the 3d case in both sexes there is no middle 

 cellule, so that this division belongs to Blennocarripa proper, and 

 to it the species here described belongs. 



It comes near to B. uncta, Klug, a species not known to me, 

 but described by Thomson (Hymen. Scand., i. 219) as having the 

 antennae " longis, abdomine fere longioribus " in both sexes, and 

 by Hartig, (Blatt. u. Holzwespen, p. 269) as having the same 

 organ in the male " etwas Kiirzerals der Hinterleib") but differs 

 in having the antennae much longer than the abdomen in both 

 sexes (in the male they are nearly as long as the body); from 

 B. jnihescens, Zaddach, it is also distinguished by the length of the 

 antennae (and it may be also mentioned that imhescens belongs to 

 the 2d group described above) by the position of the marginal 

 nervure, which in Zaddach's species is received near the middle of 

 the 3d submarginal cellule ; from B. alUpennis^ Zaddach, it is at 

 once distinguished by that species having the 3d antennal joint 

 double the length of the 4th (to say nothing of the length and 

 the different neuration in posterior wing); lineolata is also easily 

 separated by the same peculiarity. 



B. alchemillae has been taken in the Glasgow districts and in 

 Rannoch, and I found some specimens in Stephens' collection 

 in the British Museum under the name of B. uncta. I have like- 

 wise bred it from a green spiny larva (which did not differ from 

 that of B. lineolata) found on Alchemilla vulgaris in Cadder Wilder- 

 ness. This larva was full fed when I got it; it cast off the skin, 

 with the spines, and became of a pale green colour, without any 

 spines or other projections, immediately after I brought it home. 

 and before a detailed description of it could be taken. There 

 can, however, be no reasonable doubt that it is the same larva 

 as that described by Eeaumur (Mem. Tom. v., pp. 94, 95, pi. 12, 

 fig. 13, 14), and by De Geer (Mem., p. 969, No. 9, pi. 35, fig. 

 19-23); but these authors had not been able to rear the fly, nor 

 am I aware of any one else having done so. 



Mr J. E. Fletcher of Worcester has sent me a Blennocampa, which 

 appears to be B. suhserrata, Thomson, Opus. Ent., 285, 22 ; 

 Hymen. Scand., i., 220, 25. It is very like the above species, 

 but the legs are quite black at the base, the pronotum has 

 scarcely any white, the antennae are not much longer than the 

 abdomen, the 3rd joint being distinctly longer than 4th, and 

 the submarginal cellules are much broader, but otherwise the 



