248 ENTOMOLOGICAL SOCIETY 



FAMILY LXVIII. ENCYRTID^E. 



Mesonotum not entire, usually depressed, the parapsidal furrows dis 

 tinct, or at least more or less distinctly present, never entirely want 

 ing; marginal vein usually long Subfamily I. Eupelminte. 



Mesonotum entire, convex or subconvex. the parapsidal furrows always 

 entirely wanting. 



Marginal vein rarely very long, often punctiform, and always 

 much shorter than the submarginal or subcostal vein ; stigmal 

 vein, except in a single case, short but distinct; scutellum 

 never short or transversely linear; middle tibiae without lateral 



spurs Subfamily II. Encyrtinae. 



Marginal vein long, as long as the submarginal or subcostal 

 vein; scutellum very short, transversely linear ; middle tibiae 

 with lateral spurs, the apical spur lobed. 



Subfamily III. Signiphorinae. 



FAMILY LXIX. PTEROMALID^E. 



Abdomen distinctly petiolated 2 



Abdomen sessile or subsessile. 



Metanotum -without spiracular sulci and most frequently without 



lateral folds Subfamily I. Merisinae. 



Metanotum -with the spiracular sulci always present, distinct; the 



lateral folds also present, either complete or incomplete, the 



median carina usually more or less distinct, rarely entirely 



wanting Subfamily II. Pteromalinae. 



2. Front wings with a very long marginal vein, the costal cell very nar 



row 3 



Front wings with the marginal vein not especially long, often short and 

 thick, the costal cell not very narrow, normal. 



Head, viewed from in front, shcrt or rounded, the occipital line 

 incomplete; antennae 9-i3-jointed. 



Subfamily III. Sphegigasterinae. 



Head, viewed from in front, oblong, the occipital line complete; 

 antennae 8-1 2-jointed Subfamily IV. Spalangiime. 



3. Mesonotum somewhat long; head anteriorly convex ; scape long, ex 



tending beyond the ocelli Subfamily V. Diparinae. 



FAMILY LXXI. EULOPHID^E. 



Submarginal vein broken or interrupted before uniting with the mar 

 ginal vein and usually very short; stigmal vein not long, usually 

 very short, the stigma subsessile; postmarginal vein most frequently 

 entirely wanting. 



Abdomen usually petiolate ; submarginal vein very short, the 

 marginal very long, the postmarginal usually more or less 

 present ; scutellum with 2 bristles near the middle ; metapleura 

 very small Subfamily I. Entedoninas. 



