212 BRITISH ICHNEUMONS [Lissonota. 



sometimes black. Bridgman's description is badly punctuated and led 

 Schmiedeknecht into error respecting the thoracic colouration. 



(J has not hitherto been described. 



L. Halidayi has hitherto been confined to Sweden, where it is said to 

 be very rare. L. formosa was described by Bridgman from a single female 

 bred in 1886 by Porritt from either Rhodophaea cojisociella or Nephopteryx 

 geftistella, presumably in Yorkshire ; it has not been noted on the Conti- 

 nent. I\Ir. E. R. Bankes bred a single male on 28th July, 1900, from the 

 larva or pupa of Scoparia luicola, Curt., collected at Swanage, in Dorset, 

 on the second of that month ; and during July, 1904, he bred three females 

 and six males from the cocoons of the same host, taken in the Isle of 

 Purbeck in that county. These, together with four of the cocoons from 

 which they emerged, he has kindly given me ; the parasite's cocoon is 

 white or very pale brown and quite transparent, cylindrical, 7I mm. long 

 by 2 mm. broad, it occupies the whole interior of the host's cocoon 

 wherein is no trace of a chr}'salis, showing that in all probability its larva 

 is finally consumed between the period of constmcting its cocoon and 

 assuming the pupal state. 



20. variabilis, Holmgr. 



Lissonota hortoriim, Gr. I.E. iii. 47 ; Ratz. Ichn. d. Forst. i. 109, ? (?). L. vari- 

 abilis, Holmgr. Sv. Ak. Handl. 1860, n. 10, p, 56 ; Schm. Zool. Jahr. 1900, p. 371, 

 3 ? . L.fracta, Tasch. Zeits. Ges. Nat. 1863, p. 285, ? . L. bigiittafa, Thorns. 

 O.E. viii. 767, <? ? {nee Holmgr.) ; cf. lib. cit. xiii. 1422. Var. L. lateralis, 

 Holmgr. Sv. Ak. Handl. 1854, p. 94, ? {nee Grav.). 



A little shining, alutaceously punctate, black, elongate and somewhat 

 slender. Head short and distinctly narrowed behind the eyes ; mouth 

 and clypeus flavidous, ^ also with the cheeks and face concolorous ; a dot 

 at the vertical orbits often pale. Antennae porrect, somewhat slender, 

 about as long as the body, and gradually attenuate towards the apex ; 

 flagellum ferrugineous, and ^ scape flavidous, beneath. Thorax longer 

 than high, parallel-sided ; 9 with meso- and meta-pleurae rarely red ; 

 elongate lines before the radix rarely pale ferrugineous in 9 . broad and 

 flavidous m ^ ; ^ also with margin of the pronotum often broadly, and 

 a broad transverse line above the sternum, flavidous ; mesothorax finely 

 scabriculous ; areola hardly indicated. Scutellum of 9 P^le ferrugineous, 

 of S laterally flavidous. Abdomen with the basal segment a little elevated, 

 very smooth, in 9 curved, slightly and gradually dilated towards the apex, 

 of J longitudinally striate, of 9 alutaceous with the central canaliculation 

 usually obsolete ; apical margin of the four basal segments testaceous, 

 the second and third subquadrate or only slightly longer than broad ; 

 terebra as long as the body, reflexed and slender. Legs slender, red with 

 the hind trochanters infuscate above and their tarsi ferrugineous, or in (J , 



