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



R. modestiis, Eeinli., according to the description, is very 

 similar, but has the mesopleurae smooth and shining. 



Discovered near Plymouth by Bignell, and taken also 

 by Capron. Bignell's specimen is a ? with the head 

 aiid body entirely black, and the four posterior femora 

 very broadly tipped with that colour. Fitch has two 

 specimens agreeing best with var. i3. It is a widely dis- 

 tributed species in Europe. Brischke bred it from 

 Eupithecia pimpinellata, Hiib., with R. modestus. 



8. Rhogas hicolor, Spin. 



Bracon hicolor, Spin., Ins. Lig., ii., 128. 



Rogas hicolor, Nees, Mon., i., 213 ; Hal., Ent. Mag., 

 iv., 100, (? ? (excl. syn. R. prcerogator, Nees) ; 

 Eeinh., Berl. ent. Zeit., 18G3, p. 263, <y ? ; S. v. 

 VolL, Pinac, pi. iv., f. 7 (with profile of abdomen, 

 posterior coxa, and palpus). 



Aleiodes hicolor, Wesm., Nouv. Mem. Ac. Brux., 1838, 

 p. 116, <? ? . 



Rogas zyqancz, Nees, Mon., i., 210. 



R.'aUriCviX., B. E., 512. 



Black, usually with black j^alpi and pale mandibles; head, 

 thorax, and scutellum of the ? rufous, of the $ varied with rufous ; 

 legs rufous ; vertex behind the eyes rounded at the sides. Meso- 

 plearte as in the preceding. Abdomen shorter and broader. Wings 

 similar, but the stigma is less attenuated, oval, fuscous, with a 

 pale spot at the base, or wholly testaceous. Length, 2^ — 3J ; 

 wings, 4i — 5J lin. 



Antennae 37 — 40-jointed. First abdominal segment hardly longer 

 than its apical breadth ; 2d in the <? somewhat longer than broad, 

 in the $ transverse. 



Var. a. Body and coxae black, legs rufous. {B. zygcBnce). 



Var. /3. Mouth, orbits, and legs rufous ; 3d pair of knees and 

 tarsi fuscous. {B. ater). 



Var. y. Head black, orbits behind rufous ; thorax black ; 1st 

 abdominal segment at the sides, 2d wholly, except a discal spot, 

 3d at the sides and basal angles, rufous. 



It would be useless to give more colour-varieties. The 

 most usual forms presented are (1) head and thorax 

 rufous, and (2) entirely black, except the legs. 



Has been found in England, Scotland, and Ireland ; 

 generally, according to Haliday, on sandy sea-coasts. 

 Var. a was reared by Nees von Esenbcck from the larvas 



