INSECUTOR INSCITL^ MENSTRUUS 12'(' 



smoky hyaline, the costal half distinctly infuscated; scales 

 ligulate, brown. 



Types, No. 31717, U. S. Nat. Mus., three females, Browns- 

 ville, Texas, August 2S, 191G (M. M. High). A single male 

 is too much rubbed to be certain of the association. P. ciliata 

 occurs also at Brownsville. It is recorded in the monograph^ 

 but, although the particular specimen has disappeared from the 

 collection, I have another, taken ]:)y Mr. M. M. High. 



Psorophora (Janthinosoma) texanum Dyar & Knab. 



Many specimens were collected by Mr. M. M. High in 

 Brownsville, Texas, including a number of males. The geni- 

 talia do not differ from those of toltccum, as figured in the 

 monograph! (vol. H, plate 22, fig. 155, 1912). The male 

 genitalia were not previously observed (Monograph, vol. IV, 

 p. 529, 1917), and are accordingly made known, although not 

 showing special diagnostic characters. 



Aedes (Ochlerotatus) eucephalaeus, new species. 



Head clothed with silvery white scales, only a small patch 

 of black ones on each side ; mesonotum with dark bronzy 

 brown scales, a narrow stripe of silvery ones from the anterior 

 edge to antescutellar space. Abdomen black above, with large 

 lateral segmental basal silvery white spots, the venter white 

 with traces of apical dark bands. Legs black, the femora pale 

 beneath. 



Close to serratus Theobald, but much smaller and with more 

 white on the head. 



Male genitalia. Side-pieces conical, about three times as 

 long as wide, the clasp-filament long with long terminal spine ; 

 apical lobe minute, nude ; basal lobe with a spine detached on 

 one side, the head rounded-capitate with many short curved 

 setae. Harpes small, concave, with curved tips. Harpagones 

 with moderately long slender stem, the filament short, small, 

 sickle-shaped. Unci small, revolute, conical. Basal append- 

 ages with four spines. 



> Howard, Dyar & Knab, Mosq. of North & Cent. Am. & W. I., 1912-1917. 



