HYMENOPTERA. ICHNEUMONIDE. 61 
ACOENITES Latr. ———— 1 sp. A. dubitator ¥F. Pz. 78. 14. 
Hind legs long and thick; scutellum flat; head transverse; abdomen subsessile. 
XYLONOMUS Grav. Icuneumon p. Fab. 4 sp. X. pilicornis Gr. Curt. 353. 
Face quadrate; areolet wanting; femora simple ; head globose ; abdomen sessile, 
depressed, rough, and lineated at the base ; ovipositor moderate or long. 
XORIDES Laétr. 
Face narrowed towards the mouth; areolet wanting ; femora simple; head glo- 

5 sp. X. nitens Gr. 
bose ; abdomen subsessile ; ovipositor long. 
CLEPTICUS Hal. ————— 4sp.? Cryptus pretor Hal. 
Abdomen peduncled ; first segment tubercled ; clypeus compressed at the base, 
semicircular ; antenne and legs slender; areolet wanting; ovipositor exserted. 
ODONTOMERUS Gr. —— 2sp._ O. dentipes Gr. 
Hind femora very thick and toothed; areolet wanting ; head globose; abdomen 
petiolated, clavate; ovipositor long. 
ECTHRUS Gr. ——— 1sp. JL reluctator L. Pz. 71. 13. 
Areolet pentagonal or wanting; femora simple; head globose; abdomen sub- 
petiolated ; ovipositor long. 
Subfamily 2. Braconides Westw. (Ichneumones Adsciti 
Esenb.*) 
Division 1. Polymorphi Wesm. 
OPIUS Wesm. Bracon p. Nees. 50 sp. Bracon carbonarius Nees. 
Clypeus remote from the mandibles or lower wings with a disco-recurrent nerve 
or stigma elongate attenuate ; three cubital areolets, second oblong. Wesm. t. 2. 
f. 5—12. 
GNAMPTODON ZHal. Dirarnuus Wesm. 1sp. Bracon pumilio Nees. 
Clypeus remote from the mandibles; borer short, inflected; three cubital areo- 
lets, second transverse. 
METEORUS Hal. SEER Calls 22 sp. Ichneumon pendulator Latr. 
ZELE Curtis p. 
Abdomen petiolate ; borerexserted; three cubital areolets. Curt. BE. 415. 
MICROCTONUS Wesm. Perritirusp. Hal. 3 sp. Per. idalius Hal. 
Abdomen petiolate; borer exserted; antenne straight; two cubital areolets; 
mesothoracie scutum levigate. Wesm. t. 1. f. 6. 
PERILITUS Nees. Microcronus p. Wesm. 8 sp. Per. rutilus Nees. 
Abdomen petiolate; borer exserted ; antenne straight; two cubital areolets; 
parapsides of mesothorax distinct. Wesm. t. 1. f. 7 8. 
ROPALOPHORUS, N.G. Hal. Microcronus p. Wesm. 1 sp. Mier. clavi- 
cornis Wesm. Brac. Belg. pl. 3. f. M. 
Abdomen petiolate; borer exserted ; two cubital areolets; antennz subclavate, 
slightly geniculate ; scape cylindric, shorter than the head. 
STREBLOCERA JPfestw. 1 sp. Str. fulviceps Westw. 
Abdomen petiolate ; borer exserted; two cubital areolets ; antenne geniculate ; 
scape elongate, toothed below. 

* The value of the Generic Synopsis of the Ichneumones Adsciti will be duly 
appreciated when the reader is informed that it has been kindly communicated to me 
by A. H. Haliday, Esq., whose memoirs upon this tribe, published in the Entomo- 
logical, afford so good an example of descriptive entomology. 
