pyriform truncate, 3rd shorter oblong, 7 following oblong, as 

 long as the 2nd but stouter, the three terminal joints forming 

 an elongated subelliptic mass, most evident in the female (1 $ ). 

 Labrum undiscovered. 



Mandibles subtrigonate, truncated and somewhat trifid at the 

 apex, the external tooth conical (3). 



Maxilla terminated by an oblique ovate lobe ciliated externally. 

 Palpi rather short and slender, pubescent, 4 -jointed, basal joint 

 small, 2 following subovate, 4th long, subfusiform, with a slight 

 shoulder on the inside, from whence it is bristly to the apex (4). 

 Mentum triangular- conic. Lip rounded, not large. Palpi rather 

 remote at their insertion, short, triarticulate, basal joint the 

 longest, pyriform-truncate^ 2nd subglobose, 3rd ovate and 

 hairy (5). 

 Head rather transverse : eyes lateral, large and ovate : ocelli 3 in 

 triangle on the fore part of the crown. Thorax elongate-ovate : 

 collar narrowed and a little elongated; disc of thorax flat or concave : 

 scuteUum large gibbose and ovate, truncated at the base. Abdomen 

 sessile, hollow above, elongate-ovate in the male (A(^), longer and 

 acuminated in the female : ovipositor sometimes a little exserted. 

 Wings rather short, superior with the costal nervure furcated to- 

 wards the apex. Legs rather short and slender, intermediate as long 

 as the hinder, but not so stout : tibiae, anterior the shortest, inter- 

 mediate with a large spine at the apex, hinder pair with small ones : 

 tarsi 5 -jointed, intermediate with the \st and 2nd joints incras- 

 sated, the former elongated, the latter cordate : claws and pulvilli 

 minute. (8*, intermediate leg). 



1. vernalis Walk. Shagreened, greenish-copper ; antennae black, basal joint 

 green ; head black, face of female very bright green, the centre violet, 

 cheeks bright cupreous : abdomen cupreous above : wings hyaline, ner- 

 vures slender and lurid : apex of thighs and a large portion of the apex 

 of tibiae, especially the intermediate, ferruginous-ochre ; tarsi brownish, 

 a little ochreous at the base : <? 1+ line, ^ 2^ long. 



2. aestivalis JValk. Duller than C. vernalis, the antennae, legs, and ner- 

 vures of wings thicker; disc of wings ferruginous brown, costal branch a 

 little hooked at the apex : legs dark green, knees, the external tip of the 

 tibiae and base of tarsi ochreous : (? H lines, ? 2+ long. 



July, decayed Oak-trees, Southgate, Mr. F. Walker. 



The trophi of these insects agree best with those of Calli- 

 mome (fol.552), at least of the genera illustrated in this Work; 

 but in habit perhaps they make a nearer approach to Eupel- 

 mus, especially in the formation of the intermediate legs and 

 slightly exserted ovipositor, but these are points which must 

 be left for Mr. Walker to decide as he advances in his Mo- 

 nograph. 



For the beautiful drawing of Rosa hibernica (the Belfast 

 Rose), I am indebted to Miss Haliday. 



