PARASITICA — ICIINEUMONIDiK. 41 



()vi|>o«itor exiierted at leiMt nearly half the length of the alMldmen, which 

 is (iedHile and (lepresned ; (»r, if somewhat ju'dimculate, the heud is sjiher- 

 ical or eubical as in Xuri({e» and allied genera; areolet trianK*'lar or 

 wanting, rarely pi-ntangular as in Echthru$ k....PimplilneB. 



Subfamily IcHNEUMONiNyK. \ 

 Table of Genera. 



Mftathoracic opiracles linear or oval S. 



Metuthoracie spiracleHeircular. — Pneastiol 5. 



2. -I'etioli' of ahdonu'ii not deitressed, not broader than hitrh 3. 



Petiole of abdotiien depressed, broader than hi>rh.— Platyuri ..4. 



3.— Abdomen 9 acute at tip, the last ventntl segment retracted ; % ventral 

 segments 2-4 with a longitudinal fold. — Ozypjg^. 

 Scutelluni more or less flat, or simply convex, and then gradually sloping 



to the apex; metathorax rarely bis|iinose l<rlineanioil Linn. 



Scutellura strongly elevated or gibbous, abruptly declivous •/chind ; meta- 

 thorax always bispinosc HopliKnienuH (irav. 



AMonien 9 obtuse at tip, the last ventral segment slightly oi not at all re- 

 tnicted ; % ventral segments 3-8 or 4-8 flat, smooth, without longitudinal 

 fold.— Amblypygi. 



Scutellum flat, or simply convex Ainblyteles Wesra. 



Scutellum strongly elevated, generally snbiiyramida! TrogUN (5mv. 



4.— Scutellum carinate laterally I'lntylabuN Wesni. 



Scutellum not carinate laterally Kiirylabu!>i NVesm. 



.">.— Scutellum scarcely or not at all elevated fi. 



Scntelluni very convex and prominent ''^IscliiinM Grav. 



().— Metathorax narrowed and produced posteriorly beyond the insertion of the 



l)osterior legs -^Oronotns Wesni. 



Metathorax not produced posteriorly 7. 



7. — Mandibles ending in a single tooth at apex '^'Gnathoryx Wesra. 



Mandibles bideutate, the teeth unequal, the lower one very short. 



HerpeNtomuM Wesni. 



Mandibles bideutate, the teeth equal or subequal in length 8. 



8. — Second abdominal segment without depressions above. 



Mandibles of 9 emarginate on their inferioi margin ; flagellum of % fili- 

 form ColpoKiiathiiH Wesm. 



Mandibles not emarginate on their inferior margin. 



Postscutellum with two depressions -'^Diccelotuf^ Wesni. 



Postscutellum without depressions ; flagellum of % slender at base. 



Ceuteterus Wesm. 



Second abdominal segment with more or less distinct depressions at ba.se 



above Phwogenes Wesm. 



Our species of this group have already been noticed and tabulated 

 in a pajjer entitled : " Notes on the s])ecies belonging to the subfamily 

 Iclnieumonides found in America north of Mexico (Trans. Am. Ent. 

 Soc. vol. vi, July, 1877). At that time the material at hand belong- 

 ing to the last division (pnemtici) was so limited, that all the species 



TRAN8. AMER. ENT. SOC. (6) 8UPPL. VOL. 1887. 



