Mesochorus'\ BRITISH ICHNEUMONS. 319 



dcnibl but lliat il was a parasite of C. vidua. 1 have arrived at tliis con- 

 clusion from the fact tluit they came out of C. vidua pupae, and thereby 

 sl)o\vin<,f that J\I. fulgurans did not complete the entire destruction of 

 C. vidua until it had spun its cocoon " (Kntom. xiii, p. 240). Whatcombe 

 near BhuKU\)rd, September, iSqi (Richardson); Pitlochry, early in Sept- 

 ember, 1892 (Beaumont); bred at Heme Hill on 4th June, 1907, from 

 A. fi^rossulariata {^X.Ki\\io\\)\ from a cocoon of C. vidua in Surrey, during 

 19 10 (Tonge), and from the same species of cocoon, attached to the larva 

 skin of ^. grossu/ariaia, at Felden in Herts (PifTard). Mr. W. Evans took 

 a female at the lighthouse lantern at night during Sejjtember, 1907, on 

 the Isle of May in P'irth of Forth. 



6. pectinipes, Bridg. 



Mcsochorus pectinipes, Bridg. Trans. Ent. Soc. 1883, p. 166, s . (?) M. pecti- 

 nipes, Thorns. Ann. Soc. Ent. Ft. 1885, p. 336, j ? ; M. Suecicus, Schm. Opusc. 

 Ichn. 1977. 



A fulvous species with the legs concolorous and frontal orbits not 

 broadly white; face trans\erse and the mandibular teeth of equal length 

 (Thoms.). Head posteriorly subbuccate with mouth, face, cheeks and all 

 orbits pale ; face c:oarsely punctate, centrally longitudinally < ariiiate, 

 tran.sverse and a little broader apically; mandibular teeth of equal length; 

 clypeus distinctly discreted, smooth with few punctures and apically 

 rounded. Antennae longer than body and basally ferrugineous, with 

 basal flagellar joint a little longer than the two following. 'I'horax longer 

 than high ; mesonotum sparsely and regularly punctate, with distinct 

 notauli ; pronotal margin ferrugineous; areae of metathorax distinct; 

 areola elongate and hexagonal ; petiolar area complete. Scutellum 

 apically acuminate. Abdomen longer and slightly narrower than head 

 and thorax with the second segment apically, third discally and a basal 

 mark on the fourth, ferrugineous ; spiracles of ba.sal segment just beyond 

 its centre, and its sides thence immarginate and subconcave to the sub- 

 aciculate apex ; second segment distinctly and the third slightly longer 

 than broad, remainder transverse. Legs rufescent testaceous, with hind 

 coxae black ; hind tibiae hardly infuscate at both extremities ; onyches 

 and onychii dark ; tarsal claws closely and elongately pectinate to ex- 

 treme apex. Wings with stigma infuscate and basally pale, radices stram- 

 ineous ; basal nervure continuous, areolet emitting recurrent from its basal 

 third. (Bridg.). Length, 6-10 mm. 



Thomson's M. piclinipis is little more than a split from M. fuli^uraus, 

 differing in its shorter face, rather longer petiolar area, large areolet and 

 in the elongately and very stcjutly pectinate claws, which character is less 

 obvious in the male. It is mainly on account of this stout ungual con- 

 formation that I venture to retain the descriptions of both Bridgman and 

 Thomson here. \\'c know lliat .\i,i. his British examples of this genus 

 were sent by the lornier to the Sage of Lund {cf. Tr. Knl. S(jc. 1880, 

 p. 354); and with J^ridgman's M. jHctinipis before him, it is extremely 

 impr(jbable he would erect a new sj)ecies of the same name. At least both 

 forms are JJritish. 



The Juiglish type was captured at J"".arlham near Norwich during .May 

 (Bridg. Trans. Norf. Soc. 1894, p. 022) and the Swedish was there bred 

 from Abraxas grossulariata, Irom whicli L)le has also raised it, hyper- 



