568 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 93 



Host. — Larvae of the cotton boll weevil, Anthonomus grandis 

 Boheman. 



Distribution. — Louisiana, Mississippi, Texas. (Probably occurs 

 wherever cotton is grown.) 



TETRASTICHUS TURIONUM (Hartig) 



Eulophus turionum Hartig, Jahresb. Fortschr. Forstw., vol. 1, p. 20S, 1838. — 

 Ratzeburg, Die Ichneumonen der Forstinsecten . . . , vol. 1, p. 168, 1844. 



Entedon turionum (Harti.s) Ratzeburg. Die Ichneumonen der Forstinsecten . . . , 

 vol. 2, p. 170, 1848; vol. 3, p. 214, 1852. 



Tetrastichus turionum (Hartig) Dowden. Ann. Ent. Soc. Amer., vol. 27, p. 602, 

 1934. — Bergold and Ripper, Zeitschr. fur Parasitenk., vol. 9, p. 415, 1037. — 

 Dowden and Berky, Journ. Econ. Ent., vol. 31, p. 459, 1938. 



Iridescent blue-green ; antennae brown ; trochanters, apices of 

 femora, usually tibiae, and tarsi light yellow or white. 



Female. — Length, 1.1-2 mm. Antennae inserted at level of ven- 

 tral margins of compound eyes; apex of scape not reaching level of 

 anterior ocellus, all funicle segments equal in length and each as 

 long as pedicel, third funicle segment slightly constricted at base, 

 club as long as two funicle segments; malar space three-fifths height 

 of compound eye; mesopraescutum wider than long and each lateral 

 margin bearing three rows of bristles, mesal row on each side may be 

 irregular; submarginal vein of forewing with three or four dorsal 

 bristles; apex of hind wing blunt, fringe at posterior margin one- 

 fifth width of wing at hamuli. Surface of propodeum smooth, 

 median carina vague; mesal length of propodeum one-fifth length 

 of mesoscutellum ; propodeal spiracles not quite touching anterior 

 margin ; gaster varying from one and three-quarters to twice as long 

 as thorax. 



Male. — Length, 1.0-1.4 mm. Scape thickened and with a long ante- 

 rior carina, all funicle segments equal in length and each equal to 

 pedicel, funicle segments slightly enlarged near bases, and bearing 

 setae as long as the segments, club slightly longer than two apical 

 funicle segments. 



Type locality. — Germany. 



Types. — Possibly in Munich, Germany. 



Host. — Rhyacionia buoliana (Schiffermuller), the European pine 

 shoot moth. 



Distribution. — Massachusetts, New York; western and central 

 Europe. 



TETRASTICHUS CAERULESCENS Ashmead 



Figure 19, b 



Tetrastichus caerulescens Ashmead. Proc. Ent. Soc. Washington, vol. 4, p. 130, 

 1897.— Viereok, Connecticut State Geol. and Nat. Hist. Survey Bull. 22, p. 

 455. 1916.— Frison, Bull. Illinois Nat. Hist. Survey, vol. 16, p. 223, 1927. 



