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



Var. 1. Scutum of the 1st abdominal segment at the apex, or 

 entirely, pale. Taken by Euthe as the typical form, but this is not 

 BO in England, 



Var. 2. Segments 1 — 3 testaceous, only the scutum of the first 

 black. 



Var.^. Coxae, base of intermediate femora, and hind femora 

 entirely, blackish. 



It would be useless to mnltipl}- varieties ; the narrow 

 form of the 1st segment, taken in conjunction with the 

 colour of the antennae, will almost always determine the 

 species. 



Two broods, of five and six respectively, were bred by 

 Bignell, June 30th, from larvae of Cerastis spadicea, Hiib. 

 Another set by Dorville from EupWiecia siihfidrata, 

 Haw. I formerly took several specimens in Leicester- 

 shire and at Darenth Wood. Cocoons reddish brown, 

 with some longitudinal wrinkles, clustered together. 



Obs. To this species belong the specimens referred to 

 by Eeinhard (Berl. ent. Zeit., 1880, p. 360, No. 7) as 

 M. median us, Piuthe, by mistake for mediator, Hal. The 

 colour of the antennae and description of the cocoons 

 render this a certainty. The insects alluded to were 

 reared repeatedly from Oporina croceago, Fab., Xylina 

 furcifera, Hufn., and Hadena nnanimis,Ti'. The cocoons 

 are described as reddish tan-coloured and naked. Eein- 

 hard remarks that in the <? the testaceous part of the 

 2d segment is often much diminished, and that the 

 antennae vary from testaceous to black. 



9. Microplitis mediana, Euthe. 



Microgaster medianiis, Euthe, Berl. ent. Zeit., 1860, 

 p. 127. 



Black ; palpi pale ; antennai black ; legs testaceous, hind coxae 

 and tarsi, sometimes aU the coxae, black; hind femora sometimes 

 tipped with fuscous; abdominal segments 1 at the sides, 2 — 3 

 entirely or mostly, and belly at the base, testaceous. Wings dusky 

 hyaline, includmg the radial areolet ; squamulae testaceous, ner- 

 \-ures and stigma blackish, the latter broadly pale at the inner 

 angle. Head, mesothorax, and sciitellum granulated, dull ; meta- 

 thorax reticulato-rugose, distinctly carinated. Segment 1 more 

 than twice as long as broad, attenuated and rounded at the apex, 

 minutely aciculated ; the other segments smooth; 2 with two 

 discal longitudinal impressions, between which is a slightly raised 



