MEGATREMA. — COLPOTROCniA. 305 



dilated ; hind tibiae elongately bicalcarate, with the larger extendino- 

 beyond centre of metatarsus. Areolet small, triangular and petio- 

 late, emitting the second recnrrent from its apex ; upper continuous 

 with lower basal nervure ; stigma somewhat elongate and not much 

 broader than costa, emitting radius from apex of its basal third ; 

 nervellus distinctly angled and intercepted at it lower fourth. 



Range. Sikkim. 



This genus is said to be easily recognised by its very large and 

 elongate n)etathoracic spiracles. 



219. Megatrema albopilosa, Cam. 



Meqatrema albojnlusn, Cameron, Zeits. Ilyni.-Dip. 1907, p 469 



A smooth black shining species, with dense white pubescence, and 

 the greater part of the antenna; and anterior legs red. Head\y\X\i 

 face and clypeus densely punctate and with long dense pubescence ; 

 frons and vertex more closely and finely punctate. Antennce with 

 the fourteen basal joints red. Thorax with the mesonotum sparsely 

 but distinctly punctate, its basal impressioji stoutly bioariuate on 

 either side; pleurte punctate and with long white hairs ; metanotum 

 basally glabrous, with the petiolar area strongly and irregularlv^ 

 punctate, its apex centrally elevated, finely strigose and circularlV 

 incised. Seutelhiin sparsely and not strongly, though distinctly, 

 ])unctate. Abdomen double the length of the thorax, with its 

 apical segments bluntly pointed and with dense black hairs. Legs 

 black, with the anterior trochanters, feuiora, tibiae, and tarsi red ; 

 all the calcaria white; tibife and tarsi densely, femora more sparsely, 

 white pilose. Wings hyaline to the basal nervure, thence infumate, 

 with a violet tinge ; nervures and stigma black ; hind wings hyaline, 

 with their apices but slightly and narrowly infumate. 



Length 13 millim. 



Sikkim (Co7. Bingham). 



Unknown to me. 



Genus COLPOTROCHIA, Holmg. 



Colpotrochia, Holmgren, Sv. Ak. Ilandl. 1854, p. 80. 



Inorcsa, Cameron, Journ. Bombay Nat. Hist. Soc. 1909, p. 724. 



Genotype, Ichneumon eleganhdus, Schrank. 



Head transverse, with the vertex rounded ; face somewhat 

 convex and subprotuberant ; clypeus not discrete ; mandibh s 

 basally broad, convexly constricted apically, with the teeth subequnl 

 in length ; eyes oblong and distinctly emarginate next the anteniia\ 

 Antennie stout and filiform, with their apices attenuate; not or 

 hardly shorter than the body. Thorax stout ; metathorax with 

 spiracles elongate and ])arallel-sided ; metanotal areas wanting, with 

 but indications of a minute basal area. Abdomen ovate-sultfusi- 

 forra, subsessile, nitidulous and pilose; first segment graduallv 



X 



