IQ PROCEEDINGS OF THE NATIONAL MUSEUM vol. (!!> 



racic pile is very short, scattered and brassy. The radius is com- 

 pletely pilose on the upper surface. 



Cerci, broadly conical, setose. Anal lobes narrow below the cerci, 

 broadly expanded ventrally, the ventral edge thickened and witli 

 many rows of fine hooks, the upper part of the sclerite coarsely 

 setose. Ovipositor flaps remote at tip, large and coarse, conical^ 

 finely pilose. Forks of genital rod broadly expanded, one side a 

 hornlike prominence. (Fig. 46.) 



Two females. 



Type locality. — Mexico. The present location of the type is 

 unknown to us. 



Distribution. — Mexico: Cordoba, Januarj^ 30, 1908 (F. Knab). 



EUSIMULIUM OCHRACEUM (Walker) 



SimuUum ochraceum Walker, Trans. Ent. Soc. Loud., ii. sev., vol. 5, 1860, p. 332. 



Front and face subj)erlaceous ; first two antennal joints yellow, 

 remainder black ; disk of mesonotum orange, the humeri and lateral 

 margins and scutellum bright yellow, the second paratergite 

 (Crampton) black. A pair of silvery pollinose stripes on mesonotum. 

 Legs entirely blackish. Basal scale present on second tarsal joint; 

 apical projection of hind basitarsus very prominent. Claws with a 

 subbasal tooth. Four basal abdomnal segments yellow, the fifth 

 opaque black, remainder shininng black. Radius entirely setose. 

 Halteres bright yellow. 



Type locality. — Mexico. The type is lost, 



Distnhution. — Mexico: Tuxtla Gutierrez, Chiapas (A. L. Her- 

 rera). Simejevel, Chiapas (A. L. Herrera). 



EUSIMULIUM CALLIDUM, new species 



Simuliioii ochraceum Malloch (not Walker), U- S. Dept. Agr., Bur. Ent., 

 tech. ser. No. 26, 1914, p. 30. 



A species of dominant yellowish color. A pair of median silvery 

 pollinose stripes and a pair of sublateral brown stripes ; legs largely 

 yellow, including fore coxae; apical projection of hind basitarsus 

 and dorsal incision of second hind tarsus well developed. 



Cerci rounded quadrate, dark brown, darker than any other parts.' 

 Anal lobes somewhat narrowed below the cerci, forming a little 

 hairy lobe between them, produced ventrally and reaching to a 

 rounded posterior point, which is densely covered with fine short 

 setae. Ovipositor valves conic, remote at tip, weak, the slight forks 

 of genital rod widely expanded and angled on both sides. (Fig. 41.) 



Type locality. — Cordoba, Mexico. 



r?/^e.— Female, allotype, female. Cat. No. 28677, U.S.N.M. 



Distribution. — Mexico: Cordoba, March 16, 1908 (F. Knab). 



