154 Psyche [October 



a brownish shade at the apices of the tibiffi; the simple claws stout, strongly curved 

 apically, the pulvilli rudimentary. Ovipositor short, the terminal lobes irregularly 

 quadrangular, obliquely truncate distally and apparently with a flattened, plate- 

 like process at the basal third of presumably the ventral margin; dorsally there 

 are a pair of thickly setose processes tapering to broadly rounded apices. 

 Type: Cecid. 1593. 



Ouradiplosis gen. nov. 



The female referred to this genus presumably belongs in the 

 trifili and is easily distinguished from all other Itonidinarise known 

 to us, by the greatly produced, slender, terminal lobes. 



Type: 0. aurata sp. nov. 



Ouradiplosis aurata sp. nov. 



The midge described below is labeled Igarape-Assu, State of 

 Para, Brazil, January 26, 1912. The type is in the collections of 

 Cornell University. 



Female: Length, 3.5 mm. Antennae probably as long as the body, pale yellowish, 

 sparsely haired, with at least 13 and probably 14 segments, the third and fourth 

 free, the fifth with a stem one-third the length of the cylindric basal enlargement, 

 which latter has a length about three times its diameter, a thick subapical band of 

 long, stout setfe and low circumfili at the basal third and apically; terminal seg- 

 ment missing. Eyes holoptic. Palpi; the first segment globose, the second stout, 

 with a length four times its diameter, the third longer than the second, more slender, 

 the fourth three-fourths the length of the third, slender. Mesonotum a nearly 

 uniform yellowish brown, the submedian lines sparsely haired, scutellum and post- 

 scutellum brownish yellow, the abdomen yellowish brown. Wings with the mem- 

 brane thickly clothed with golden brown hairs, giving a pronounced color, costa 

 light straw, subcosta uniting with the margin just beyond the middle, the crossvein 

 rudimentary, the third vein stout, especially from the crossvein and beyond, and 

 joining the margin well beyond the apex; the fifth vein joining the posterior margin 

 at the distal third, its straight branch shaded with fuscous hairs, uniting with the 

 posterior margin at the basal third; hal teres pale yellowish. Coxoe, femora and 

 tibiae pale yellowish orange, the tarsi wanting. Ovipositor short, the terminal 

 lobes sparsely setose, slender and with a length nearly equal to that of the body 

 segment; dorsad of the terminal lobes there is a flattened, hemispherical, sparsely 

 setose, somewhat irregular median elevation. 



Type: Cecid. 1591. 



This large sized species, although the male is unknown, may 

 be easily recognized by its marked coloration and the peculiar 

 structure of the posterior extremity of the abdomen. 



