ASHMEAD : CLASSIFICATION OF THE CHALCID FLIES 401 



Hemitorymus thoracictjs, sp. nov. 



Female. — Length 4 mm., ovipositor much longer than the body. Head and 

 metathorax metalhc greenish, the metapleura blue, the rest of the thorax, the an- 

 tenna! scape and pedicel, the legs, except the hind coxse at base behind and the 

 venter, yellow ; the abdomen above is more or less tinged with brown ; the fiagellum 

 is long brown-black. The head and the thorax are shagreened and have a shallow 

 thimble-like punctuation. The metathorax is smooth with distinct spiracular sulci, 

 the spiracles being large, oblong-oval. The wings are hyaline, with the tegulse and 

 the veins pale yellowish. The abdomen is oblong, as long as or a little longer than 

 the head and the thorax united, and subcompressed along the venter basally. 



Brazil : Chapada, in September. One specimen. 



Subfamily V. Megastigmin^. 



Genus MEGASTIGMUS Dalman. 

 I have seen a single specimen of this genus taken in Brazil not in good condi- 

 tion. It ought to be well represented in South America. 



Subfamily VI. OrmyrintE. 



Genus ORMYRUS Westwood. 

 Ormyrxjs brasiliensis, sp. nov. 



Female. — Length 1.7 mm. Blue ; ocelli red ; the extreme base of the scape, the 

 trochanters, knees, tips of the tibise and the tarsi, pale yellowish, the rest of the tibise 

 brownish piceous ; wings hya-line, the veins light brownish. 



The head and the thorax are almost smooth, but under a strong lens exhibit five 

 transverse aciculations. The third body segment of the abdomen has two transverse 

 rows of punctures at base, the fourth has three rows, the punctures on the fifth are 

 large and arranged in about four rows, while the sixth has an indistinct row at the 

 extreme base. 



Brazil: Chapada, in April. One specimen. This is the first species to be 

 described from South America. 



Subfamily IV. Podagrionin^. 



Genus PODAGRION Spinola. 

 PoDAGRiON BRASILIENSIS Howard. 



Podagrion brasiliensis Howard, Journ. Linn. Soc. London, Zool., XXV., 1896, p. 83, 

 9. —Howard, Journ. Linn. Soc. London, Zool., XXVL, 1897, p. 132.— Dalla 

 Torre, Cat. Hym., V., 1898, p. 369. 

 Brazil : Santarem ; Chapada. West Indies : Grenada. 



