512 MEMOIRS OF THE CARNEGIE MUSEUM 



Trike it. Tdradichini. 



Genus TRICHOPORUS Forster. 



Teichoporus colliguaya (Philippi). 



Exurus coUiguaya Philippi, Stettin, ent. Zeitg., XXXIV., 1873, p. 296; T. ].— Dalla 



Torre, Cat. Hym., V., 1898, p. 159. 



Chile. 



Teichoporus mklleus, sp. iiov. '. 



Female. — Length 1.8 mm. Honey yellow, punctate, the eyes brown, the abdo- 

 men with a blackish spot on each side near the middle, the scape and legs pale yel- 

 lowish ; flagellum long, filiform, hairy ; wings hyaline, the veins pale yellowish. 

 The abdomen is cylindrical, pointed at apex and as long as the head and thorax 

 united. 



Male. — Length 1.4 mm. Agrees in color with the female except that the 

 blackish spots near the middle of the abdomen unite and form a transverse band, 

 while the veins in the front wings are brownish. The flagellum is long and the 

 hairs are much longer than in the female. 



Brazil : Santarem ; Chapada. 



Trichoporhs viridicyaneu.s, sp. nov. 



Female. — Length 2-2.6 mm. Metallic bluish-green to blue, punctate ; scape, 

 trochantei's, apices of all femora, and all tibite and tarsi, except the last joint, pale 

 yellowish ; flagellum brownish-yellow, pubescent ; wings hyaline, the veins yel- 

 lowish. The abdomen is long, cylindrical, twice as long as the thorax, pubescent, 

 the first and second body segments about equal, shorter than the third, the first 

 segment longer than the third, the sixth and seventh short, the seventh conical. 



Male. — Length 1.4-1.5 mm. Agrees well with the female, except in the usual 

 sexual differences and in a slight difference in the color of the antennse and legs : 

 The flagellum is darker with longer hairs and with only one ring-joint, while the 

 front and middle femora are dusky only at base. The abdomen is cylindrical, a 

 little longer than the head and thorax united. 



Brazil : Chapada, in April. Fourteen females, six male specimens. 



Trichoporus persimilis, sp. nov. 



Female. — Length 2.8 mm. Metallic brown black, punctate, the abdomen brown 

 beneath ; flagellum brown, hairy ; scape, pedicel and legs, including the coxiB, honey 

 yellow, the femora more or less dusky or brownish, especially basally ; otherwise it 

 is very similar to T. viridicyaneus except that the first body segment of the abdomen 

 is twice the length of the second. 



Brazil : Chapada, in April. Two specimens. 



