EHYSSA. 93 



quarter as long again as the body. Leys elongate and somewhat 

 slender, fulvous ; coxae sometimes badious, or rarely in tf black, 

 front ones of $ very rarely nearly totally black, the anterior pairs 



Fig. 20. Itkt/fsa persuasoria L. 



of both sexes generally whitish beneath ; hind tarsi and tibiae 

 infuscate or rarely dull ferruginous. Wings narrow and flavescent, 

 with the stigma blackish ; radix and tegulae white ; areolet irre- 

 gularly triangular, sessile or subpetiolate ; first recurrent of lower 

 wings strongly postfurcal and intercepted far above its centre. 



Length 22-34 millim. 



A common Palaearctic species occurring throughout the north 

 temperate zone ; 1 have seen it from the United States, Canada, 

 from Yesso, in the north of Japan, and from spruce woods at 

 Deota, Tehri-Gashial, in the North-west Himalayas at an altitude 

 of 7000 feet, in June 1902 (E. P. Subbing). 



50. Rhyssa fulvipennis. Cam. 



Rhyssafulvipcnnis, Cameron,* Maiich. Mem. 1899, p. 127 ($). 



A large black and flavous species, with the antennae and legs 

 fulvous, and the wings somewhat clouded. Head fulvous, with 

 the face flavesceut ; frons, apex of vertex, occiput above, a central 

 line between them, mandibles and apex of face, black ; face 

 glabrous, with sparse and infuscate pilosity, epistoma feebly 

 punctate ; frons and vertex subglabrous, with isolated punctures. 

 Antennae pale fulvous and centrally subflavescent ; scape nitidulous 

 and subglabrous. Thorax black, with the propleurae smooth, 

 shining and broadly fulvous above ; mesonotura sparsely pilose, 

 with two anteriorly coalesced virtae on its central lobe, a central 

 line, and shorter ones above the radices, fulvous ; mesopleurae 

 finely punctate and apically crenulate, with the callosities and a 

 large basal mark pale fulvous ; metathorax glabrous and uitid.ilous, 

 with the areola large, deeply impressed, transverse and laterally 



