336 MEMOIRS OF THE CARNEGIE MUSEUM 



2. Marginal vein shorter than the subcostal vein, the stigmal vein long, well developed ; hind tibiae armed 



with many long bristles Euryischia Howard (type E. lesfophoni How.). 



Marginal vein very long, much longer than the subcostal, the stigmal vein minute ; hind tibise unarmed, 

 without long bristles Elasmus Westwood (type Eulophus flabellatus Fonsc.). 



3. Marginal vein shorter than the subcostal, the stigmal vein long, well developed ; antennse simple, with- 



out branches Euryischia Howard. 



Marginal vein very long, longer than the subcostal, the stigmal vein very short ; antennae with three 

 branches Elasmus Westwood. 



Family LXXI. EULOPHIDiE. 



1840. Eulophides, Subfamily 5 (partim), Westwood, Intro. Mod. Class. Ins., p. 166; 



Synop., p. 73. 

 1843. Eulophini, Subfamily (partim), Haliday, Trans. Ent. Soc. London, III., p. 



296. 

 1856. MyinoidEe, Familie 3 (partim)^ Forster, Hym. Stud., II., pp. 18, 21 and 30. 

 1856. Elachistoidse, Familie 18 (partim), Forster, Hjmi. Stud., II., pp. 19, 26 and 



72. 

 1856. Eulophoidse, Familie 19 (partim), Forster, Hym. Stud., IL, pp. 19, 26 and 74. 

 1856. Entedonoidse, Familie 20 (partim), Forster, Hym. Stud., II. , pp. 19, 26 and 



78. 

 1856. Tetrastichoidse, Familie 21 (partim), Forster, Hym. Stud., II. , pp. 19, 26 and 



83. 

 1878. Tetrastichina, Tribus (partim), Thomson, Hym. Skand., V., p. 180. 



1885. Tetracampinse, Subfamily (partim), Howard, Ent. Amer., I, p. 198. 



1886. Tetracampinse, Subfamily (partim), Howard, Ent. Amer., II. , p. 98. 



1900. Eulophidse, Family LXXL, Ashmead, Proc. U. S. National Museum, XXIIL, 

 p. 203. 



This very large family, which comprises mostly very small species, is separated 

 from all the previously described families, except the Elasmidse, by thoracic and 

 pedal characters, and to a great extent also by venational peculiarities impossible to 

 describe in detail to any except to those who have a thorough knowledge of the 

 various families. 



The principal points to be noted, however, are the axillse which are advanced 

 forward into the basal region of the parapsides, on or before an imaginary line drawn 

 from tegula to tegula, a character found in none of the foregoing families, except the 

 Elasmidas which is too obviously distinct in many other ways to require specifica- 

 tion again. 



Five distinct subfamiUes may be recognized by the aid of the following table : 



