THE ENTOMOLOGIST. 
[No. 204. 
Vou. XIII.] 
MAY, 1880. 
INTRODUCTORY PAPERS ON ICHNEUMONID.. 
By J B. Brrpeman anv HE. A. Fircu. 
No. II.—ICHNEUMONIDAE. 
GravenHorst’s ‘Ichneumonologia Europea’ (1829) is the 
text-book of Ichneumons generally, but of the first family, 
Ichneumonide, Wesmael has made himself the authority, par 
excellence. His eight remarkably lucid memoirs,* published by 
the Brussels ‘Académie Royale,’ were, however, never completed 
and collated by himself; which is to be regretted. Wesmael 
primarily divided the Ichneumonide into five subfamilies, as 
follows :— 
A. Spiracles placed between the middle and apex of 1st segment. 
a. Metathoracic spiracles linear, or linear-elliptic ; rarely oval. 
* Petiole of abdomen not depressed. 
+ Abdomen of female with an acute apex; the last ventral 
segment more or less remote from the base of the 
aculeus. - - - - 1. Ichnewmones oxypygi. 
* «Tentamen dispositionis methodice Ichneumonum Belgii” (1844, ‘ Nouv. Mem. 
Ac. Brux.,’ xviii., 238 pp., 1 pl.) ; “‘ Mantissa _Ichneumonum Belgii” (1848, ‘ Bull. Ac. 
Brux.,’ xv., pt. 1, pp. 138—187, 292—%41); “ Adnotationes ad descriptiones Ichneu- 
monum Belgii” (1849, ‘ Bull. Ac. Brux.,’ xvi., pt. 1, pp. 35—44); ‘ Ichneumones 
platyuri Europzi” (1853, ‘ Bull. Ac. Brux.,’ xx., pt. 3, pp. 297 —328) ; “ Ichneumones 
amblypygi Europxi” (1854, ‘Bull. Ac. Brux.,’ Annexe, pp. 77—142, 1 pl. with 17 
figs.) ; “ Ichneumonologica miscellanea” (1855, ‘ Bull. Ac. Brux.,’ xxii., pt. 2, pp. 362 
—435); “Ichneumonologia otia” (1857, ‘Bull. Ac. Brux.,’ 2nd ser., ii., pp. 355— 
426); “Remarques critiques,” &c. (1859, ‘Mem. couron. Ac. Belg.,’ 8vo, vol. viii., 
pp. 1—99). 
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