230 Mr. F. Walker on some Chalcidites and Cynipites. 



narrow : the head is red : the antennae are white with black rings, 

 setaceous and as long as the thorax : abdomen fusiform, attenuated 

 towards the tip, longer than the thorax : legs pale yellow ; tips of 

 the tarsi black ; a broad black band round each thigh : wings limpid, 

 mottled with brown, very deeply fringed like those of Thysanus or of 

 Mymar ; nervures piceous. Length of the body \ line ; of the wings 

 1 line. 



Eulophus amethystinus, KoUar, Austria = Entedon (Derosienus) gem- 



mens, Westwood. 

 orbifer, Kollar, Aw^tridi =. Euplectrus (Westwood) bicolorSwe' 



derus. 



Aceris, Kollar, Austria = Eulophus Orsinus, Mon. Chal. i. 126. 



Pteromalus Mesoleptorum, Kollar, Austria = Pteromalus cavus, Ent. 



Mag. ii. 477. 

 robustus, Kollar, Austria. 



This species is nearly allied to Pteromalus latus, * Ent. Mag.' ii. 

 481, but it is larger and has longer and paler antennae. Body aeneous, 

 broad and thick : head and thorax closely punctured : head large, 

 broader than the thorax : antennae tawny, subclavate, rather slender, 

 as long as the thorax ; tip of each joint piceous ; first joint linear, 

 long and slender ; second cup-shaped ; third and fourth very minute ; 

 fifth much longer ; sixth and following to the tenth successively but 

 very slightly decreasing in length ; club conical, much longer than 

 the tenth joint : thorax nearly obconical : pro thorax short, slightly 

 concave behind : sutures of the parapsides distinct : propodeon large, 

 transverse, not furrowed : podeon very short : abdomen smooth, 

 shining, broader than long, truncated towards the tip, rather nar- 

 rower than the thorax, and less than half its length ; metapodeon 

 large ; octoon and following segments very short : legs pale tawny, 

 rather stout ; hind thighs except their tips piceous ; tarsi and tips 

 of tibiae of middle and hind legs pale straw-colour : wings limpid, of 

 moderate size ; squamulae piceous ; nervures brown ; ulna hardly half 

 the length of the humerus ; radius as long as the ulna ; cubitus much 

 shorter than the radius ; stigma small. Length of the body 1^ line ; 

 of the wings 2 J lines. 



Eulophus Forsteriy Kollar, Austria. 



This species seems to be a variety of Tetrastichus Eurytus (Cirro- 

 spilus ditto, Ann. Nat. Hist. ii. 202) ; its thorax is more overspread 

 with yellow than that of the specimen there described. 



Eulophus histrionicus, Kollar, Austria = Tetrastichus Zeuxo (Cirro- 



spilus ditto, Mon. Chal. i. 194). 



Perilithi, Kollar, Austria = Eulophus gallarum, Nees. 



signaticollis, Kollar, Austrian Alps. 



This insect, which is a female, belongs to the genus Tetrastichus ; 

 the oviduct and its sheaths project a little beyond the tip of the ab- 

 domen like those of some other species of that genus. It is very dark 

 piceous or almost black ; the antennae are piceous : there are two 

 parallel sutures along the back of the scutellum : the hinder part of 



