578 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 93 



of a spiracle; gaster blunted at apex and its length equal to that of 

 thorax, apex of ovipositor forming a minute, pointed projection in 

 otherwise blunt abdomen. 



Male. — Length, 0.8 mm. First f unicle segment slightly shorter than 

 pedicel, three distal funicle segments equal in length and each twice 

 as long as first segment, all funicle segments bearing conspicuously 

 long bristles on dorsal elevations near bases, bristles borne by first seg- 

 ment as long as entire funicle ; club two and one-quarter times as long 

 as fourth funicle segment; gaster as long as thorax. 



Type localities. — Sweden; Germany. 



Types. — Presumbly in the Forestry Academy in Eberswalde, Ger- 

 many. 



Hosts. — The European birch leaf miner, Phyllotoma nemorata 

 (Fallen); the elm leaf miner, Fenusa ulmi (Sundevall); the apple 

 flea weevil, Orchestes pallicomis Say ; Phanomeris phyllotomae Muese- 

 beck; Chrysocharis sp. Several other hosts mentioned in European 

 literature. 



Distribution. — Massachusetts, Ohio ; northern, central, and western 

 Europe. 



Remarks. — This species should not be confused with Tetrastichus 

 xanthopus (Nees), which parasitizes Dendrolimus pini (Linnaeus) in 

 Europe. 



TETRASTICHUS RACEMARIAE Ashmead 



Fiqukes 17, f ; 21, d 



Tetrastichus racemariae Ashmead, Trans. Amer. Ent. Soc, vol. 13, p. 134, 1886. — 

 Cbesson, Synopsis of families and genera of Hymenoptera of America north 

 of Mexico, p. 245, 1887. — Viereck, Connecticut State Geol. Nat. Hist. Survey 

 Bull. 22, p. 453, 1916. 



Tetrastichus calif ornicus Ashmead, Proc. Amer. Ent. Soc, vol. 14, p. 203, 1887. 

 (New synonymy.) 



Eyperteles flocci Ashmead, Proc. Amer. Ent. Soc, vol. 14, p. 203, 1887. (New 

 synonymy. ) 



Dark brown or black with varying degrees of metallic-green iri- 

 descence ; antennae, trochanters sometimes, bases and apices of femora, 

 tibiae usually, and basal segments of tarsi white or light 3'ellow ; color 

 of metatibiae variable. 



Female. — Length, 1.8-2.2 mm. Antennae inserted slightly ventrad of 

 level of ventral margins of compound eyes; apex of scape reaching 

 level of ventral margin of anterior ocellus; scape two and one-third 

 times as long as pedicel, all funicle segments equal in length and each 

 slightly longer than pedicel, club not quite twice as long as first funicle 

 segment : malar space three-fifths height of compound eye ; postocellar 

 line two to two and one-half times as long as ocellocular. Mesoprae- 

 scutum wider than long and provided with two rows of bristles at each 



