ASHMEAD : CLASSIFICATION OF THE CHALCID FLIES 521 



EuLOPHUS RHiANUS Walker. 



Eulophus rhia7ius Walker, Ann. & Mag. Nat. Hist., X., 1842, p. 116, 9. — Spinola, 

 Gay: Hist, de Chile, Zool., VI., 1851, p. 430, 9.— Dalla Torre, Cat. Hym., 

 v., 1898, p. 67. 

 Chile : Valparaiso. 



Family LXXII. TRICHOGRAMMID^. 



Genus PENTARTHRON Riley. 

 Pentarthron brasiliensis, sp. uov. 



Female. — Length 0.4 mm. Head and thorax above uniformly honey-yellow, 

 the temples, cheeks, mouth parts, sides of thorax and the abdomen beneath yellow- 

 ish-white, the eyes brown ; the antennae, except the club which is dusky, and the 

 legs are very pale or yellowish-white ; the pedicel is hardly longer than thick, much 

 shorter than the first joint of the funicle which is conical and more than twice 

 olnger than thick at apex, the second funicle joint being small, annular, the club 

 large, fusiform, as long as the scape. The wings are hyaline, with a long marginal 

 fringe, the front wings with the pubescence arranged in eight hair lines. 



Type.— Gat. No. 6596, U. S. N. M. 



Brazil : Bahia. Taken on cotton, March, 1883, by Mr. Albert Koebele. 



Family LXXIII. MYMARID^E. 



Subfamily I. Gonatocerin^. 

 I have seen no representative of this subfamily from South America, although 

 it must be well represented by many species in several genera. 



Subfamily II. MYMARIN^. 



Genus POLYNEMA Haliday. 

 Polynema brasiliensis, sp. nov. 

 Female. — Length 1 mm.; ovipositor about one third the length of the abdomen. 

 Polished black ; antennae brownish-fuscous, with the scape, pedicel, first joint of 

 funicle, the apex of the fourth and base of fifth fanicle joints, yellow ; the legs 

 except as noted, and the abdominal petiole pale yellow, the hind femora toward 

 apex and the apical two fifths of the hind tibiae, dusky or fuscous. 

 Brazil : Chapada, in April. One specimen. 



Polynema rupescens, sp. nov. 

 Male. — Length 0.8 mm. Reddish-brown, the eyes and the flagellum brown 

 black ; scape, pedicel and legs, except the hind tibias which are fuscous, honey yel- 

 low ; the abdomen towards the apex is tinged with fuscous. 

 Type.— Cat. No. 6595 U. S. N. M. 

 Brazil : Pernambuco, February, 1883 (Mr. A. Koebele). 



