British Braconidce. 91 



pale yellow, their apex and tarsi, as well as the last joint of the 

 other tarsi, black; 3d and following abdominal segments very 

 shining ; spurs of the 3d pair of tibiae stont, blunt. $ ? . Length, 

 3— 3i ; wings, 6—6* lin. 



Antennae <? 55—57-, ? 52 — 54-jointed, as long as the body, or 

 longer. Mesopleura; shining, minutely punctulate, rugose under 

 the wings, and with a rugose fovea below. Abdomen elongate, in 

 the ? somewhat compressed at the apex, terebra subexserted ; 

 segments 1 — 2 rugulose, carinated, 3 rugulose at the base. Second 

 cubital areolet transverse, a little shorter than the podiscoidal ; 

 stigma blackish. 



Var. a. First abdominal segment wholly rufous, or with a 

 single black spot. 



This species may be recognised by the yellow hind 

 tibiae, tipped with black, and the very shining apex of 

 the abdomen. The <? of gasterator has the base of the 

 hind tibiae narrowly and indistinctly yellowish, but the 

 rest is rufous. 



Appears to be not uncommon, yet has hitherto escaped 

 notice. Bridgman has taken eight males and six females 

 in Norfolk, in May and June ; I have a pair in bad con- 

 dition found near Leicester ; taken by Fitch at Maldon 

 and Harwood at Colchester ; W. H. B. Fletcher bred a 

 pair from Hadena unanimis, Tr. 



4. Ehogas dimidiatus, Spin. 



Bracon dimidiatus, Spin., Ins. Lig., iii., 125, ? . 



Eogas dimidiatus, Nees, Mon., i., 214, ? ; Eeinh., 

 Berl. ent. Zeit., 1863, p. 257, <? ? ; S. v. VolL, 

 Pinac, pi. iv., f. 6. 



Aleiodcs niqripalpis, Wesm., Nouv. Mem. Ac. Brux., 

 1838, p. 97, <? . 



A. hrevicornis, "VVesm., lib. cit., p. 98, ? . 



Rogas riificornis, Schaff., F. G., clvi., 10, ? . 



Male. Black ; mandibles, abdominal segments 1 — 2, base of 3, 

 and legs, rufous; coxic (or only the 1st pair), 1st joint of the 

 trochanters, 3d pair of femora and tibiae at the apex, with their 

 tarsi, black. Antennaj as long as the body, about 52-jointed, black, 

 rarely rufous at the base. Wings subinl'uscated, scarcely extending 

 beyond the apex of the abdomen. 



Female, Kufous; palpi, genae, apex of the antennae, pectus, 

 metathorax, 3d and following abdominal segments, and apex of the 

 3d pair of femora, black, their tarsi fuscous. Antennae rather 

 stout, distinctly shorter than the body, 37- 40-joiuted (in my 



