178 Rev. T. A. Marshall's monograph of 



tibiae, rufo-testaceous ; middle and hind tibiae more or less tipped 

 with fuscous. Wings whitish hyaline, squamulae black, stigma 

 fascous. Antennae $ as long as the body ; of the ? only | as long, 

 submoniliform at the apex. Mesothorax very shining, subpimctu- 

 late ; metathorax rugulose. Segment 1 longer than broad, with 

 parallel sides, rugulose and somewhat shining, like the 2d, which is 

 a little shorter than the 3d ; the rest smooth and shining. Hind 

 cox£E smooth, shinmg. Terebra shortly exserted. Ventral valve 

 surpassing the anus. Spnrs of the hind tibiae shorter than + the 

 metatarsus. ^ 5 , Length, 1^— 1| ; wings, 3—31 lin. 



A large species, characterised by intense blackness, 

 very shining thorax, whitish wings, and in the 2 un- 

 usually short antennae, exserted terebra and ventral 

 valve, whereby the abdomen appears acuminated. M. 

 sericeus, Nees, has not hitherto been identified, but the 

 agreement of our larger specimens with his description 

 is very complete. The structure of the 2d segment, with 

 two obsolete, lateral, impressed, converging lines, en- 

 closing a rugulose space, is sufficiently indicated by Nees. 

 It seems equally certain that iwcBpotens, Hal., is to be 

 referred to this species, although Eeinhard places a (?) 

 after the name. M. 2)lacidus, Hal., which Eeinhard 

 treats as a synonym, is a distinct species, and not hard 

 to recognise among English specimens. Besides, Haliday 

 was too careful a writer to describe the same insect under 

 two different names, with only lineola between them. 

 Nees compares his sericeus with juniperatce, Bouche, but 

 the latter agrees only in size, differing in the subfuscous 

 wings, less shining surface, length of the ? antennae, 

 shorter ventral valve, and colour of the cocoons. 



Common. A solitary parasite. Bred by Bignell from 

 Tethea retusa, L., DiantJia'cia cucuhaU, Fuess., and 

 capsincola, Hiib., Emmelesia alelicmUhita, L., and Eupi- 

 thecia pulcheUata, Ste. By Fitch from Mimeseoptilus 

 plagiodactylus, Staint., and by Piaynor from Eupithecia 

 ralerianata, Hiib. By Cameron, at Milngavie, Scotland, 

 from Therajuniperata, L. Bignell obtained his specimens 

 from E. pinlehellata on March 24th, out of cocoons taken 

 in foxglove-flowers the preceding July ; hence it appears 

 that some of them hybernate as pupa, although the 

 majority come out in July and August. Nees also 

 obtained his sericeus April 25th out of a larva which feeds 

 on Digitalis amhigna flowers. Bred on the Continent by 

 Kriechbaumer, qf Munich, from Ilyysipetes impluviatus, 



