292 MEMOIRS OF THE CARNEGIE MUSEUM 



5. Flagelliira filiform, irillioul bi-aiiclics 6 



Flawelliiin with four branches. 



Body bare or nearly. 



Branches of flagellum long Tanaostigma Howard. 



Branches of flagellum short Tanaostigmodes Aslimoad. 



Body well clothed with short, stout, scale-like white hairs Trichencyrtus Ashniead. 



6. Body well clothed with short, stout, scale-like white hairs ; wings glabrous, the stigmal vein curved, as 



long as the marginal vein and ending in a knob, the iiostmarginal vein absent ; scape veiy slender, 

 the joints of the fiinicle much wider than long and briefly but distinctly pedicellate. 



Eutrichosoina Aslnnead. 



Subfamily II. Encvrtix.e. 

 1S40. Encyrtides, Subfamily 4 (partira), Westwood, Intri). Mod. Class Ins. Synop., 



p.' 72. 

 1856. EncyrtoidiB, Familie 5, Forster, Hyni. Stud., I., p. 18. 

 1875. Encyrtina, Tribus, Thomson, Hym. Skand., IV., pp. 12 and 112. 

 1886. Encj^rtinfe, Subfamily, Howard, Ent. Amer., I., p. 198. 



1897. Encyrtiuai, Subfamily II., Ashmead, Proc. Ent. Soc. Washington, l\., p. 248. 

 1900. Encyrtina}, Sul)family II., Ashmead, Proc. U. S. Nat. Mus., XXIIl., p. 324. 



This subfamily was fully characterized in my paper, "On the Genera of the En- 

 cyrtinse," published in 1900. 



The four tribes into which it was divided may he recogtiized Ij}' tlie aid of the 

 following table : 



TABLE OF tribes. 



1. Mandibles bi- or fr/-dentate, or broadly truncate at ajiex, never acute ; tarsi always 5-jointed 2 



Mandibles dentate, acute at apex 5 



2. Mandibles at apex, bidentate or, truncate 3 



Mandibles at apex trideutate, the teeth sometimes very minute; labrum usually conspicuous. 4 



3. Mandibles not stout, or only moderately so, rather long and always bidentate at apex ; labrum free ; 



abdomen in females with the hypopygium large, lanceolate or plowshare-shaped, inclosing the ovi- 

 positor, and extending beyond the anus ; the second segment most ft-equently large ; antenuse usually 

 inserted just above the clypeus, rarely just below the middle of the face. Tribe I. Ectromini. 



Mandibles stout, but short and polished, the apex broadly truncate, unarmed or nearly so ; labrum 

 conspicuous ; abdomen with the hypojiygium less evidently prominent, not ]irojecting ; body usually 

 stout, not metallic ; hin<l til>i,'e with fivo spurs ; antennte inserted below the middle of the face. 



Tribe II. Encyrtinse. 



4. Hind tibiaj with one apical spur ; hypopygium not prominent ; body most frec|uently, but not always 



metallic ; antennte variable Tribe III. Mirini. 



5. Tarsi 4- or 5-jointed ; marginal vein punctiform, or suljobsolete Trilic IV. Arrhcnophagini. 



Tribe I. Edrornini. 

 In this tribe the species are usually more elongate and narrower, the mai-ginal 

 vein pi'oportionately longer, with the stigmal vein shorter, while tlie mandibles are 



