Cecidonowus.] BRITISH ICHNEUMONS. Ijy 



July, 1872 ; and I have found it by sweeping hedges at Monk Park AVood 

 in Suffolk, and in Burwcll l''en in Canibs., in May and June. On 13th 

 June, 1900, I took a female on a house window at (Ireat IJradley in 

 Suffolk, which is unlike any Ifemileles described by Schmiedeknecht, and 

 I conclude must be a small form of the present species, from which it 

 differs only in its glabrous, entirely black abdomen and testaceous stigma. 



4. gallicola, Bridg. 



CecidonoiHHS gallicola, Bridg. Entom. 1S80, p. 265 ; Schm. Term. Fiiz. 1897, p. 562, i 9 , 



A black species with the head dull and finely coriaceous ; face pubes- 

 cent and vertex hardly narrowed posteriorly ; mandii^les and palpi flavous. 

 Antennae about two-thirds the length of the body. Thorax dull and finely 

 coriaceous ; mesonotum discally deplanate with the notauli hardly indi- 

 cated ; metathorax somewhat shining with the areae not very distinct ; 

 areola somewhat regularly hexagonal, sub -transverse, basally incomplete 

 and hardly constricted, of $ not broader than long and more regular, 

 apically truncate ; petiolar area excavate. Abdomen with the three basal 

 segments dull and finely alutaceo-punctate, the remainder sub-compressed 

 and glabrous ; terebra hardly longer than the abdomen. Legs red ; of $ 

 with coxae and trochanters, apices of the hind tibiae and tarsi sometimes, 

 infuscate ; of $ with coxae except the apices of the anterior, and base of 

 the posterior trochanters, infuscate. Wings with the areolet externally 

 wanting ; stigma piceous, radix and tegulae flavous ; nervellus intercepted 

 below the centre. Length, 4-6 mm. 



Bridgman says the finer sculpture and nitidulous anus will distinguish 

 this species, as also do the much less cubical head, shorter terebra and the 

 sometimes dark 5 coxae and trochanters. Brischke thought it allied to 

 He mi teles corinrius, Tasch. 



Two males and four females bred from the galls of Cynips Kollari in 

 1878-9, and three males ca[)tured at Norwich ; also found at Maldon in 

 Essex, Shere in Surrey, Felden in Herts. ; and I have taken two males 

 in a greenhouse at Ryde, in the Isle of Wight, in August. 



PEZOMACHOIDES. 



Tabic of Genera. 



(2). I. Head transverse ; metanotum as long as 



petiolar area, central segments normal PKZOMACIIUS, Grav. 

 (i). 2. Head sub-globose ; metanotum shorter 



than petiolar area, central segments 



connate Thaumatotvpus, Fo/s/. 



PEZOMACHUS, Graven liorsf. 



Gr. I. K. ii. {1829), 867. 



Head transverse and not narrower than thorax, with the cheeks often 

 sulcate. Antennae of 9 not very slender. 'I'horax sulvcylindrical ; meta- 

 notal areae usually entirely wanting, usually only the apical transverse 

 costa distinct, areola of c^ sometimes indicated though not divided from 



N 



