LahrorhvcJius'] BRITISH ICHNEUMONS. 249 



3. tenuicornis. Grav. 



A)ioi}ialon teniticornc, Gr. I.E. iii. 671 : Wesm. Bui. Ac. Brux. 1849, p. 134 ; 

 Holmgr. Sv. Ak. Handl. 1858, p. 28; Brisch. Schr. Nat. Ges. Danz. 1880. p. 137; 

 Bridg. -Fitch, Entom. 1884, p. 225, ^ ?. Agrypon tcniticonic, Forst. Verb. pr. 

 Rheinl. 1860, p. 152; Thorns. O.E. xvi. 1769. LnhrorliycJiits tcnuiconiis. Schm. 

 Opusc. Ichn. p. 1494. 



Head pubescent and posteriorly explanale, black with clypeus, face and 

 the 9 cheeks flavoiis; vertex deeply eniarf,anate; face punctate and dis- 

 tinctly constricted apically; temples rufescent and closely punctate; 

 cheeks with lamellar margins. Antennae always fully as lonjif as, or 

 slif^htly longer than, the body; black with scape flavous, and flagellum 

 basally rufescent, beneath. Thorax pubescent and black, mesonotum 

 subdiffusely punctate, with somewhat obsolete notauli; metathorax 

 deplanate and rugose. Scutellum laterally carinate. Al)domen red, dis- 

 cally and apically nigrescent. Legs fulvous and slender with the front 

 coxae transcarinate, hind tarsi not explanate and anterior coxae of only 

 (^ flavous; hind coxae and trochanters, in the smaller .specimens, black; 

 hind femora rarely basally piceoiis, their tibiae usually not apii-ally in- 

 fuscate. Wings slightly infumate, with stigma rufescent and t(\gulae 

 fulvous; nervellus wi'akly intercepted below its centre. lA'iigtli, 9-13^ 

 (French -16) mm. 



Known by the remarkable loigth of the antennae and only to be mixed 

 with the next species. 



Abundant throughout Europe. Bred on the Continent from Hypono- 

 mcula padi'Ua, H. malincUa and H. cvonymcUa (Dours); from pupae of 

 Cymalophora Or, and — teste Bridg. -Fitch — Anarla niyrlilli (Brischke) ; 

 Thais polyxcna from (?) Greece (Bignell, E.IM.INL 1887, p. 149); Dorilis 

 Apollitius, " chenilles d'Euchelia jacobeae, prises au bord de la mer, a 

 Cancale, au mois d'aout" and from Thais vudcsicasfe ((liraud"); Dr. 

 Chapman has given me twenty-two of the maximum size bred by him 

 from the last host at Digne in June, 1908. With us it seems confined 

 entirely to woods; some co-types were taken by Hope about Netley; it 

 was evidently well known to Curtis, who found maU's in May and females 

 in July on oaks in Coombe Wood, Wimbledon ; I have taken it in Park- 

 hurst Forest, Lsle of Wight; at Wilverley, Knight Wood and on Miiitha 

 hirsttia at Philips Hill in the New Forest, where it is common (Miss 

 Chawner, Thornley, Adams, il^'c.) ; Gucstling (Bloomfield), Darenth Wood 

 (Andrews), Shere (Capron), Clxshott (BeauuKjut). I^ut there are no 

 records north of Suffolk, where it is common in woods at Bentlcy and 

 Assington and Wherstead, flying round birch and poplar from 21st May 

 to nth July; once I swept it from Mtnurialis pcnuuis and once look a 

 curiously belated female on 6th September, 1895. It has been reared 

 with us from Selcnia hmaria by Elisha (Entom. 1883, p. 65); Dianthaccia 

 capsincola by Bignell {I.e. 1881, p. 139), and the same observer bred it on 

 25th ]\Iay from Anisopitryx acscidaria in South Devon ; Bridgman adds 

 that it has been found to attack Gehchia nacvifitrlla at Worthing and 

 Phycis roborella at Kings Lynn. South gave me a male which emerged on 

 22nd August, 1903, from Closlera pigra at Oxshott and Ciiarbonnicr 

 another which emerged on ist April, 1907, from a Tortri.x chrvsalis, spun 

 up in an oak leaf at Bristol. 



R2 



