498 ICHNEUMONID^. 



angled above it ; and from the PLECTISCIDES * in the tibiae not 

 being basally constricted and the head being as broad as the thorax. 

 Only four genera are known, with widely distributed species. 



Table of Genera. 



1 (2) Recurrent nervure emitted beyond the 



submarginal ; nietanotum not apically [p. 498. 



produced CREMASTUS, Grav., 



2 (1) Recurrent nervure continuous with the 



submarginal ; nietanotum apically 



produced TARYTIA, Cam., p. 502. 



Genus CREMASTUS, Grav. 



Cremastus, Gravenhorst, Ichn. Europ. iii, 1829, p. 730. 

 Paurolexis, Cameron, Journ. Bombay Nat. Iliat. Soc. 1906, p. 282. 



GENOTYPE, C. interrupter, Grav. 



Head transverse, broadly rounded posteriorly and not very 

 narrow ; clypeus apically somewhat abruptly rounded, margined, 

 somewhat distinctly discrete centrally and obliquely sulcate 

 laterally ; eyes glabrous and large, not or hardly emarginate in- 

 ternally ; cheeks elongate and not sulcate ; lower mandibular tooth 

 distinctly a little the longer ; scrobes very large and aciculate, 

 extending nearly to the ocelli. Antennae slender. Notauli rarely 

 deeply impressed ; mesopleurae sometimes crenulately sulcate 

 above the centre ; nietanotum convex and completely areated ; 

 areola twice as long as broad, basally subacuminate and apicallv 

 truncate ; petiolar area not or hardly excavate ; apex sometimes 

 produced above the hind coxae ; spiracles circular and small. 

 Abdomen slender, alutaceous and more or less strongly compressed ; 

 first segment elongate with the basal third petiolate and the apex 

 dilated ; second twice as long as broad, often finely aciculate ; 

 terebra elongately exserted. Tarsal claws simple ; basal hind 

 tarsal joint about as long as the three following united ; front 

 tarsi double the length of their tibiae ; hind tibiae a little curved 

 but not basally constricted, with their femora not dentate. Wings 

 not ample, all the nervures apically obsolete, and the front ones 

 with no areolet ; second recurrent emitted immediately beyond, 

 and not much longer than, the submarginal ; radial cell short, not 

 extending beyond centre of metacarpus ; stigma broad and sub- 

 triangular, emitting the radius from its centre ; external cubital 

 and anal nervures wanting, basal subcontinuous ; first discoidal 

 cell much broader basally than apically, and short ; nervellus 

 straight and not intercepted, its median nervure wanting thence 

 to base. 



* Respecting the PLECTISCIDES, it is sufficient in the present state of our 

 knowledge to say that doubtless this tribe is very numerously represented in 

 India, whence I have seen a female collected in Ceylon by Dr. Thwaites, in 

 1867 ; &c., &c. ; but so little attention has at present been paid to the collecting 

 of these small species that an account of them is held over for the present. 



