Labrorhychus] BRITISH ICHNEUMONS. 247 



(3). 4. Antennae very distinctly as long as 

 the whole body. 



(6). S- Scape black ; head somewhat explan- 



ate behind the eyes .. ;,. TK>«'1'IC""1<>>''^' ^^m:-. 



(^). 6. Scape fulvous; head posteriorly dis- 

 tinctly constricted ' . / 4. DEisil.ls, Wcsni. 



1. nigricornis, Wesm. 



Anomalon nigriconic, Wesm. Bui. Ac. Brux. 1849, p. 12(S; Holmgr. Sv. Ak. 

 Handl. 1858, p. 22 ; Kirchner, Lotos, 1856. p. 234, fig. 10, cf ? ; Blaptocaiiipiis 

 nigricornis, Thoms. O.E. xvi, 1766, i ? . Var. Anomalon pcrsipcuiiin, Wesm. 

 Bui. Ac. Brux. 1849, p. 127; Holmgr. Sv. Ak. Handl. 1858, p. 22; Voll. Pinac. 

 pi. xliii, fig. 3 ; Bridg. -Fitch, Entom. 1884, p. 224, 3 ? ; Blaptocampus pcrspi- 

 cuus, Thoms. O.E. xvi. 1766. ? ; cf. xix. 2119. 



Head not explanate behind the eyes, posteriorly deeply emarginate; 

 black with mandibles except their apices, clypeus, face and apices of 

 cheeks flavous ; vertical orbits (form typ.) not pale marked ; face distinctly 

 constricted apically; clypeus apically shortly dentate. Antennae about 

 half length of body, with scape flavous beneath and flagcllum sometimes 

 basally rufescent. Thorax black; mesonotum punctate, with notauli 

 apically somewhat strong; pleurae centrally subgiabrous ; metathorax 

 coarsely rugo.se, with weak central sulcus. Scutellum convex and laterally 

 carinate. Abdomen red with second segment discally, and (form typ.) 

 the fifth to anus both discally and laterally, black ; terebral valvulae flavi- 

 dous. Legs flavidous red, with the anterior paler ; hind coxae and their 

 tibial apices black, their tarsi flavous with metatarsi except apically pice- 

 ous or ferrugineous. Wings slightly infumate, with stigma and tegulae 

 fllavidous. Length (British), ii-i4mm. 



I consider Anomalon pcrspicinim certainly no more than a variety, since 

 Schm. could find no better difference than the distinctly pale-dotted 

 vertical orbits and immaculate red fifth segment; Wesmael gives no com- 

 parison. 



Generally distributed on the Continent, though connnoncrin the north; 

 the typical form is said to be the more frequent and is recorded by (jaulle 

 to ha\e been bred from Dendrolimiis {Botnbwx) pini in France. \\'ith us 

 the typical form has not hitherto been anywhere noticed and it must be 

 extremely rare, since I have seen but a single example, caj)tured at Guest- 

 ling in Sussex in 1893 by Rev. E. N. Bloomfield, ]\LA. The \^r. perspi- 

 cuus, on the contrary, is a common species in Britain and my thirty ex- 

 ponents came from Ivybridge in Devon during May (Keys), Lyndhurst in 

 early July (Adams), Shere (Capron), Coply in mid-June (Beaumont), 

 Felden (Pilfard), Asliby near Donca.ster in May (Dr. Cassal), Edwinstowe 

 in ]\Iay (Lady Robinson), Cannock Chase in early June ( Tomlin), and 

 Colintraive on 24th May and Cadder on loth June, 1900 (Dalglish). A 

 male was "bred June 26th, 1005, from 7(;;-//'/a- chrysalis found on birch, 

 Corfe Castle, Dorset" (Bankes); Dr. Chapman sent me a chrysalis exactly 

 resembling this one on 22nd fune, i8f)9, from which another male had 

 just emerged; it was first found tcj hv indigenous by Atmore, who raised 

 it from Chora lichniaria (Entom. 1883, p. 65), and subsecjuently from 

 Trachea piniperda, at Lynn in Norfolk during June, 1882. The species 

 has always occurred to nie flying round young birch trees in woods at 

 Bentley and Assington in SulTolk, from the middle of ^Lay to that of 

 June, in company with Agrjpon flaveotaliim, though more rarely than that 

 insect. k 



