PA RA8ITIC A — PRIKTOTKU PI UJR. 8 1 



Family PROCTOTRUPIDiE. 

 This family if< closely allit'(l in many rts^pecb^ to the ('halci<li(hi', 

 hut is readily distiiitruished l)V the j>osterioi' iiiartrin or anodes of* the 

 prothorax exteiidinjr to the tej,'ulie, and the ovipositor issuinL'' from 

 the apex of the al)(h>men. The s|K>cies are <renerally very small and 

 are usually shininjj; black or brown in color and have some very 

 curious forms, exhibitiuir a singular diversity of structure. The 

 winfjs are jjrenerally almost veinless, but in some of the subfamilies, 

 e. jr. Dryinina-, End)oleminie and Ilelorina', the maririnal, submar- 

 ginal or discoidal cells are often completely chwd, and in this re- 

 spect closely resend)le the neuration of certain Hraconidse; the pos- 

 terior winirs are almost always destitute of veins and are distinctly 

 lobed near the base in the Dryiuinte, Embolemiiue and most, if not 

 all, of the liethylina'. The species have been but little studied in 

 this country and conscijuently only a few have been described. The 

 followinjr tables have been copied fri)m those of Mr. Howard, pub- 

 lished in the thirteenth volume of these Transactions: 



Table of Subfamilies.* 



Posterior wiiijts with h distinct lobe near ba.se, or, where the winjis of tlie 9 '"■*' 



wantinj;, the anterior feet are fitted for grasping 2 



Posterior wings not lobed '.i. 



•2. — Antennie % and 9 with same number of joints Dryi-iinse. 



Antennie % U)-jointed, 9 13-jointed Emboleminse. 



3.— Anterior tibiie with two spurs Ceraphroninae 



Anterior til)iie with one spur 4. 



4. — Mandibles not toothed Proctotrupinee. 



Mandibles toothed .">. 



.'>. — Abdomen acutely niarjiined on the sides; antenna' arising near the border of 



the mouth 6. 



Abdomen not acutely margined ; antennte arising far above the border of the 



mouth 7. 



a. — Anterior wings with a marginal vein and occasionally also a stigmal ; the 



unwinged genera without ocelli Scelioninse. 



Anterior wings without marginal and stigmal veins; all the genera with 



ocelli Platygasterinse. 



7. — Posterior wings without trace of a median vein 8. 



Posterior wings with a median vein 9. 



8. — Posterior wings very small, almost linear Mymarinse. 



Posterior wings broader, not linear Diaprinee. 



* The absence of the subfamily Hcthylina' in this table is explained by Mr. 

 Howard, on page 169 of his " Synopsis'' referred tc above ; since then etrenuous 

 ettbrts have been made to obtain a copy of Haliday's work, fnmi correspondents 

 in Europe, but without success. The genera belonging to this subfamily, how- 

 ever, are characterized below. 



TKAN8. AMEE. KNT. .SOC. (11) SUPPL. VOL. 1887. 



