114 BRITISH ICHNEUMONS. [Spinolia. 



impressed centrally ; terebra somewhat longer than the first segment. 

 Legs slender, black, with all the tibiae and femora more or less ferru- 

 gineous ; tarsi infuscate, front ones paler. Wings normal with two broad, 

 determinate fasciae and a large apical spot piceous ; stigma and tegulae 

 black, radix and base of stigma whitish ; areolet wanting ; fenestrae very 

 distinct and widely separated ; apical external angle of discoidal ceil 

 rectangular ; nervellus sub-opposite and intercepted below the centre. 

 Length, 5-7 mm. 



$. Head entirely black with white pilosity ; the conformation as in 

 the $ , but sculpture rather finer and more nitidulous. Antennae as long 

 as the body, slightly attenuate apically and pilose ; flagellar joints much 

 shorter than in ? and twenty-five in number ; black with the pedicellus 

 alone red. Thorax pilose and dull ; metanotnm trans-striate as in $ ; 

 metathorax nitidulous and sub-glabrous, areae as in $ with the petiolar 

 sub-scabriculous and not discreted. Scutellum bordered throughout, 

 basally trans-strigose. Abdomen sub-linear, glabrous and strongly nitidu- 

 lous throughout, becoming distinctly pilose apically ; black with only the 

 incisures of the third segment obsoletely rufescent ; basal segment sub- 

 linear and hardly explanate apically, glabrous and nitidulous with no 

 tubercles and only obsolete lateral aciculation. Legs very slender, piceous 

 with the tibiae and apices of the femora testaceous ; hind tibiae curved 

 and apically infuscate. Wings quite transparent with stigma and tegulae 

 black, extreme base of the former and the radix white ; fenestrae distinct 

 and not widely separated ; areolet, discoidal cell and nervellus as in the 

 9 ; all the nervures apically pellucid and rarely reaching the apex of the 

 wing. Length, 5 mm. 



The femora and tibiae are sometimes nearly entirely testaceous and the 

 external cubital nervure entirely wanting. 



[Var. c?. Head sculptured and conformed as in the type, but sub- 

 rugose with the occipital and facial orbits somewhat broadly testaceous. 

 Antennae stouter, filiform, entirely black and pilose, with twenty-nine 

 flagellar joints. Thorax pilose and dull ; mesonotum closely and 

 irregularly punctate, convex with very obsolete notauli ; metathorax dull 

 and scabriculous throughout, but with areae as in the type, except the 

 discreted petiolar. Scutellum bordered throughout and basally trans- 

 strigose. Abdomen sub-linear, basally dull but becoming nitidulous, as in 

 type, and pilose apically ; black throughout ; basal segment sub-linear, 

 centrally explanate with very distinct tubercles, thence parallel- sided ; 

 post-petiole and whole of the second segment distinctly aciculate ; anus 

 compressed. Legs as in type form, but with the posterior tibiae infuscate. 

 Wings distinctly and evenly infumate throughout ; coloration of parts as 

 in type form, but with base of the much broader stigma not pale ; fenestrae 

 coalesced ; discoidal cell apically sub-obtuse ; areolet wanting, its inner 

 nervure vertical and not oblique as in type S 9 ; basal nervure, unlike the 

 type, broken at the median nervure and much less curved above ; nervellus 

 straight and not intercepted. Length, 5^- mm.] 



This species differs from all the Hemiteks described by Thomson, 

 except H. ( Catalytus) fulveolatus, in having the inner nervure of the 

 areolet so oblique as to be practically wanting. Schmiedeknecht failed to 

 satisfactorily discriminate between H. iiisig?iis, Grav., and the present 

 species, and considered Forster's genus of little stability ; but Marshall was 



