Lissonota.] BRITISH ICHNEUMONS. 217 



24. trochanteralis, DT. 



Lissonota troclianterata, Bridg. Trans. Ent. Soc. 1889, p. 438 [nee Holmgr.); 

 Schm. Zool. Jahr. 1900, p. 374, ? . L. trochanteralis, Dalla Torre, Cat. Hym. 

 iii. 504. 



Black and somewhat dull. Head transverse and narrow behind the 

 eyes ; mandibles and palpi red, clypeus flavous. Antennae as long as the 

 body. Thorax immaculate ; mesonotum closely and finely punctate ; 

 nietathorax somewhat finely and roughly punctate, w-ith no trace of areae, 

 but with the basal costa of the petiolar strong. Scutcllum black. Abdo- 

 men with the basal segment rather more than twice longer than broad 

 and, like the second, very finely aciculate transversely ; second and third 

 longer than broad and narrowly rufescent apically ; terebra nearly as long 

 as the body. Legs red with the posterior trochanters black ; posterior 

 tarsi and hind tibiae infuscate, the latter centrally subrufescent. Wings 

 with stigma black, its extreme base and the tegulae rufescent ; areolet 

 entire ; nervellus nearly straight and intercepted at its lower third. 

 Length, just over lo mm. 



This 9 appears to be extremely closely allied to L. unicincta, from 

 which it differs only in such variable points as the colour of the hind 

 tibiae and stigma, its rather larger size and perhaps in the length of the 

 antennae. It would probably be advisable to unite them under the latter 

 name, though one hardly likes to do so without examining the type of 

 L. I roc haute rata in the Norwich Museum. 



This species, the last Bridgman ever described, is founded upon a sin- 

 gle female captured by Champion near Lincoln. 



25. deversor, Grav. 



Lissonota deversor, Gr. I.E. iii. 591 ; Tasch. Zeits. Ges. Nat. 1863, p. 283; 

 Schm Zool. Jahr. 1900, p. 386; Opusc. Ichn. 1323, <f 9 . 



Head closely and somewhat coarsely punctate ; vertex broad and hardly 

 narrowed behind the eyes ; mouth ferrugineous or flavescent, with the 

 apices of mandibles black; internal orbits usually very narrowly flavescent; 

 (J with clypeus and usually two longitudinal facial lines flavescent ; 9 

 with the face either whitish or entirely black or with two ferrugineous 

 lines. Antennae filiform ; of J as long as, of 9 longer than half, the 

 body with the scape unusually ferrugineous beneath. Thorax gibbous, 

 cylindrical, closely and somewhat coarsely punctate, slightly shining ; a 

 line beneath the radix, another or a dot before it, and sometimes in 9 

 two mesonotal vittae, pale flavous and often indistinct ; mesopleurae sub- 

 nitidulous ; mctanotum coarsely punctate with the petiolar areae basally 



