ERIOBORUS. 469 



basally; distinctly carinate laterally. Abdomen black, with the 

 third to fifth, and sides of the second, segments rufescent ; petiole 

 glabrous and nitidulous. Leys black, with the tibiae mainly, and 

 their calcaria, testaceous. Wings hyaline, with the stigma and 

 nervures testaceous ; areolet shortly petiolate. 



Length 12 millim. 



SIKKIM : Darjiling. 



Genus ERIOBORUS, Forst. 

 Erioborus, Fiirster, Verh. pr. Rkeinl. 1868, p. 153. 



GENOTYPE, Canipoplex perfidus, Grav. 



Head somewhat distinctly constricted behind the internally 

 entire and parallel eyes ; clypens with but small lateral foveae, and 

 apically rounded. Metathoracic areola usually pentagonal, with 

 strong costulae ; spiracles circular. Abdomen not apically clavate ; 

 terebra not extending beyond the anus. Hind metata'rsus half 

 the length of its tibia. Stigma distinct ; anal nervure not con- 

 tinuous ; areolet entirely wanting ; nervellus neither geniculate 

 nor intercepted. 



Ranye. Palaearctic Region. 



1 follow Schmiedeknecht in retaining Forster's typeless genus, 

 which is a convenient division of Anilasta, Thorns., for those 

 species lacking an areolet ; though it is certainly not geuerically 

 distinct. 



362. Erioborus perfidus, Grav. 



Campople.v perfidus, Gravenhorst, Ichn. Europ. iii, 1829, p. 595 ( $ ). 

 Anilasta perfida, Thomson, Opusc. Eut. xi, p. 1175 ( ). 

 Erioborus perfidus, Schmiedekiiecht, Opusc. Ichn. p. 1646 ( $ ). 



$ . A black species with white pilosity and with the abdomen 

 and anterior legs apically red. Head posteriorly narrow, with the 

 palpi and centre of mandibles fiavescent. Antennce longer than 

 halt the body and somewhat slender. Thorax immaculate, with 

 the central metanotal areas distinct, though not very strong ; 

 areola subhexagoual, basally constricted and emitting costulae before 

 its centre ; spiracles circular. Abdomen strongly compressed, red, 

 with the tirst, basal two-thirds of the second segment, and the 

 very shortly reflexed terebra, black. Leys with the anterior 

 femora and tibiae mainly rufescent; hind legs black, with their 

 femora at the extreme apex, and tibiae broadly in the centre, dull 

 red. Wings hyaline, with the stigma piceous and the tegulae 

 testaceous ; basal nervure not continuous ; nervellus entire. 



Length 7-8 millim. 



SIKKIM : Darjiling (E. Brunetti). EUROPE. 



Type in the Breslau Museum. 



I feel no hesitation in referring a female from Darjiling to this 



