Aperileptus] BRITISH ICHNEUMONS. 13 



This species is widely distributed on the Continent through France, 

 Germany, Sweden, etc., but has hitherto been nowhere bred. With us, 

 however, it appears to be of rare occurence ; at all events I have never 

 met with it in Sufiblk. INIr. Philip de la Garde has been so good as to 

 send me three females and a male, bred in company, together with and 

 undoubtedly from the fungus-gnat, Myceiophila bmaculata, Fab., in fungi 

 at South Brent in southern Devonshire on 8th October, 1908. Earlham 

 near Norwich in July (Bridgman), a full series of both sexes at Shere 

 (Capron), Felden in Herts (Pifiard); a couple of females occurred to me 

 on 15th June, 1907, in INIatley Bog and on 12th July, 1909, on bracken 

 at Setley marsh, in the New Forest. Most, if not all, of these have pale 

 sternum. 



PROCLITUS, Forster. 



Clcpticus, Hal. Ann. Nat. Hist. 1839, p. 116 {ncc Cuv. Pices, 1829); Proclitiis, 

 Forst. Verb. pr. Rheinl. 1871, p. 113. 



Head about as broad as thorax, with vertex discretcd from occiput by 

 transverse costa; clypeus distinctly discreted, with deeply impressed 

 lateral foveae ; cheeks usually elongate with distinct sulci. Antennae 

 17-26-jointed, with short and erect pubescence; scape short and cylindri- 

 cal, flagellar joints elongate and cylindrical with the first longer than the 

 second. Thoracic notauli short; metathorax with areae distinct, but 

 costulae wanting ; petiolar area with no central carina. Abdomen ^ith 

 basal segment not roughly sculptured, always more or less nitidulous ; 

 its spiracles at or immediately beyond its centre, rarely before it; terebra 

 distinctly exserted and always longer than basal segment. Legs slender 

 with the onychii and pulvilli small. Areolet wanting, with its inner 

 ncrvure short and usually punctiform ; basal radial abscissa strongly 

 curved and forming no acute angle with the apical; second recurrent 

 nervure remote from inner of areolet; nervellus usually geniculate, for 

 the most part far below centre, but emitting no distinct nervure. 



The conformation of this genus resembles that of Pleciiscus, but the 

 areolet is externally wanting and internally so short as to usually be 

 punctiform or wanting. All doubt respecting the synonymy of C/ep/icus, 

 Hal. and Prodiius, Forst. is removed by the fact that I have been enabled 

 to synonymise the whole of the former's species with those described by 

 the latter and Thomson under the later name ; Clepticus, however, cannot 

 be here adopted, since it was preoccupied by Cuvier for fishes; the above 

 somewhat obvious synonymy renders Ashmead's new name Mischoxorides 

 (Canad. Entom. 1900, p. 368) useless. 



Table of Species. 

 (6). I. Mesonotum centrally sulcate ; terebra 

 distinctly longer than half abdo- 

 men. 

 (5). 2. Basal segment not short ; terebra 



shorter than abdomen. 

 (4). 3. Antennae stout, 23-jointcd; legs stout ; 



length, 5 mm \. v\<\\':\o\<, Hal. 



(3). 4. Antennae slender, 17-jointed; legs 



normal; length, 3mm 2. SOCI is, //<//. 



(2). 5. Basal segment short ; terebra as long 



as whole body 3. COMES, Hal. 



(i). 6. Mesonotum not centrally sulcate ; 



terebra hardly haltabdomcn 4. I'AGANUS, //"c//. 



