Srzruc/us.] BRITISH ICHNEUMONS. 251 



laterally at the base, flavescent ; basal segment half as long again as 

 broad, the two following little broader than long, and the remainder trans- 

 verse ; central and apical segments finely and diffusely punctate ; terebfa 

 black and hardly as long as the abdomen, with the spicula castaneous. 

 Legs normal, fulvous ; front ones usually subflavous beneath, with the 

 anterior coxae and sometimes trochanters nigrescent ; hind coxae and 

 trochanters black, apical ly flavidous with their tarsi basal ly rufescent. 

 Wings normal, subflavescent and only slightly clouded towards their 

 apices ; stigma and radius infuscate, radix and tegulae flavous ; areolet 

 small, nearly regular and elongately petiolate. Length, 8 — lo mm. 



This species was thought by Tliomson {/or. n't.) to be probably synony- 

 mous with L. versicolor, Holmgr., which, hoA\e\er, is retained by 

 Schmiedeknecht (O.L 1303) in the genus Lissonota. 



The latter says this species is sparingly distributed in central, but yery 

 rare or altogether unknown in northern, Europe and apparently common- 

 est in Pomerania ; Klug took it about Berlin ; Taschenberg in Saxony, 

 where he bred a male from Thalpochans paula ; Kirchner records it from 

 Vienna, and Rossi says that it occurs in woods. That it has any right to 

 a position in our British list, I yery much doubt : Marshall first introduced 

 it as indigenous in his 1870 Catalogus, giving as a synonym. Lisso7iota 

 deversor. The latter is now known to be quite distinct and is established 

 with us ; but it appears probable that it was solely on the suposititious 

 identity of these very distinct species (which appears to be of his own 

 erection, since I find no other author venturing upon it) that the present 

 insect was introduced. There are no records and I ha\e seen nothing 

 like it : it has played irrisor to my search. 



3. bicornis, Gvav. 



Pirnpla bicornis, Gr. Beit. Ent. Schl. 1829, p. 23, pi. i. fig. II, cT ? . Lissonota 

 bicornis, Gr. I.E. iii. 91 ; Schiiff. F. G. cxvi. 20 <r , 21 ? ; Tasch. Zeits. Ges. Nat. 

 1863, p. 283, i ? . Diceratops bicornis. Schm. Zool. Jahr. 1900, p. 351 ; Opusc. 

 Ichn. 1268, i ? . Syzeucta bicornis. Thorns. O.E. xiii. 1415, ? . 



Head with the face clos'ely punctate and nearly dull ; frons and vertex 

 nitidulous, the former excavate with an erect and acute tubercle on either 

 side ; 9 with clypeus ferrugineous and the orbits sometimes partly pale ; 

 J with face and mouth flavous, pali^i infuscate, apices of mandibles and 

 two dots above the clypeus black. Antennae filiform, a little shorter than 

 the body, ferrugineous entirely or beneath ; two basal joints black and in 

 (^ flavous beneath. Thorax gibbuious, coarsely and somewhat closely 

 punctate, nitidulous ; notauli wanting ; J sometimes with two flavous 

 dots on the propleurae ; metapleural carinae wanting basally ; spiracles 

 elongate and linear. Scutcllum black and laterally not margined. Abdo- 



