228 Eev. T. A. Marshall's monograph of 



at the base, nor are the arcuate impressed lines before 

 the apex uniformly distinct. Segment 3 sometimes 

 exhibits a transverse subtestaceous band. The sutures 

 of the mesothorax are indistinctly visible. The 3" differs 

 in having the belly black at the base. 



The (? was bred by Nees v. Esenbeck in July, 1809, 

 from a cocoon found on an oak-twig, and from II. oleracea, 

 L. It formed a green pearly cocoon, and remained in the 

 pupa- state a fortnight. He also states that he captured 

 several more of both sexes between June and August at 

 Sickershausen, Brischke bred the species from Miselia 

 oxi/acantlue, L., and Plnsia gamma, L. ; he describes the 

 cocoon as being of a bright bluish green. According to 

 Giraud, Eogenhofer reared it from Ilahrostola tripartita, 

 Hufn. W. H. B. Fletcher, of Worthing, bred a pair, 

 belonging to the var., from Lyperina cesjntis. Fab. 

 Wesmael procured four males and one female in Belgium, 

 but, as he says the hind tarsi are sometimes testaceous, 

 some of these may have been xanthopus. The ? has 

 been twice taken at Maldon by Fitch, in August ; and by 

 Billups at Margate. I captured a <? near Barnstaple, 

 another in Darenth Wood, a third at Cheltenham, a 

 fourth at St. Albans, and a fifth in an osier-bed at 

 Nunton, Salisbury, Sept. 3rd. The remarkable grass- 

 green cocoons are made by two different species of this 

 genus ; those of sordipes, Nees, are described as similar 

 (though not so by Brischke), and the species may probably 

 be found in England, though I have seen no specimens. 



2. MicropUtis xanthopus, Piuthe. (PI. V., fig. 7). 



Microgaster xanthopus, Piuthe, Berl. ent. Zeit., 1860, 

 p. 147, ? . 



Black ; palpi and legs rufo-testaceoiis, includiug the hind tarsi ; 

 coxas, upper trochanters, and claws, black. AVings infumated, with 

 a testaceous tinge, squamulie piceous, nervures and stigma fuscous, 

 the last determinately yellow at the inner angle. Head, meso- 

 thorax, and scutellum ruguloso-punctate and dull. Metathorax 

 coarsely intricato-rugose, carinated. Segment 1 rugulose, not 

 much longer than its apical breadth, considerably narrowed 

 towards the base, where is a large oblong fovea. Segment 2 vaguely 

 and indistinctly rugulose, without any arcuate impressions. Tere- 

 bra very short. Valvula ventralis large, acuminated. ? . Length, 

 2 ; wings, 4 lin. 



