248 BRITISH ICHNEUMONS. [Labrorhychus 



2. clandestinus, Grav. 



Anomalon clandcstiiuini , Gr. I.E. iii. 670; Wesm. Bui. Ac. Rrux. 1849, p. 129; 

 Holmgr. Sv. Ak. Handl. 1858, p. 26; Brisch. Schr. Nat. Ges. Danz. 1880, p. 137; 

 Bridg. -Fitch, Entom. 1S84, p. 224, s ? . Agiypoii clandcsfininii, Forst. Verh. pr. 

 Rheinl. 1860, p. 151 ; Thnms. O.E. xvi 1770, c7 ? . Labrorliychiis clandestinus, 

 Schm, Opusc. Ichn. p. 1497, c? ? . Var. Anomalon affinc, Holmgr. Ofv. 1857, 

 p. 181 ; Sv. Ak. Handl. 1858, p. 27, ,? ? . 



Head and thorax shortly and diffusely grey-pubescent, finely and 

 rugosely punctate, subnitidulous with the former somewhat the broader. 

 Head slightly constricted posteriorly, black with mandibles except 

 apically, clypcus, cheeks and face flavous. Antennae but little shorter 

 than body with the scape (lavous, and flagellum towards its apex rufescent, 

 beneath. Thorax black, with flavous radical callosities; notauli distinct; 

 pleurae centrally glabrous and nitidulous; metathorax coarsely rugose, 

 with traces of smooth basal areae. Scutellum deplanate and rugose. 

 Abdomen thrice length of head and thorax, fulvous with the first segment 

 basally and remainder more or less discally piceous. Legs red, with 

 anterior coxae and trochanters flavous and tibiae basally subnigrescent, 

 paler in $ ; hind legs incrassate with basal and apical trochanteral joints 

 of equal length, and metatarsus as. long as remaining joints united; their 

 coxae and trochanters mainly, femoral base, tibial apices and their tarsi, 

 infuscate. Wings hardly clouded ; lower basal nervure postfurcal ; paral- 

 lel nervure emitted far above centre of brachial cell ; nervellus weakly in- 

 tercepted below its centre. Length, g-i3mm. 



The var. affinis is somewhat larger with the hind coxae red; it is rare 

 with us and I have only a pair, taken by Capron at Shere in Surrey and 

 by myself in the Bentley Woods on nth I\Ia\', i8q8, on birch. 



Locally abundant abroad, occurring from Sweden to an altitude of two 

 thousand feet in the Pyrenees, where many have been bred from chrysa- 

 lids of Eiipilhicia vcnimria, often after two years in pupae ; Goosens 

 raised it from the same host nearly 40 years ago in Bavaria. In Prussia, 

 Brischke frequently bred it from Emmelesia alchcmillata, Fnpi/hecia larici- 

 ata, E. actaca/a, Ocnectra pillcriana, Hyponomciita eiwiymeUa and Cerostoma 

 radiaklla. In Britain it is common if not abundant, rarely taken in the 

 field though constantly bred by Lepidopterists from Hcmithca thymiaria 

 on 1 2th July by Bignell and Eupithccia linariata by Barrett (Entom. 1881, 

 p. 139), E.absynlhiata by Raynor, E.castigata on 14th May and Cerostoma 

 cosklla on 20th July by Bignell {I.e. 1883, p. 6^^), Hypsipcies implnviaia and 

 Eupithecia piunilata {I.e. 1 8 84, p. 226) ; and at Lynn by Atmore from E. valcr- 

 ianata (Bridgman), Christy gave me four males raised from New Forest 

 Nemoria viridata on 30th June, 1899; Ash a forced and weak female from 

 Eupiihecia albipunciata, Hw., taken in Bishops Wood near Selby on ist 

 Jan., 1902; Porritt sent another, bred in April, 1896, from an unknown 

 larva at York; and Slater raised it on 12th Oct., 1907, at Withycombe 

 near Taunton from Eupitheeia eoronata. Single examples have occurred 

 at Felden in Herts, at Shere and Abinger Hammer in Surrey; and I beat 

 a male from birch at the end of August, 1902, in Tuddenham Fen. 



