414 RHYNCHOPHORA. 
in the middle at the base. THcead glabrous, finely punctate, transversely grooved between the eyes; 
rostrum gibbous at the base, (¢) short, stout, and feebly curved, (@ ) longer than the head and 
prothorax, more slender, and almost straight, in both sexes closely punctate and squamose, the antenne 
inserted at (@) or beyond (¢) the middle, the antennal club acuminate-ovate and moderately large. 
Prothorax transverse, constricted in front and slightly sinuate at the sides at about the middle; densely 
confluently punctate, and sometimes with indications of a faint median carina, Elytra flattened on the 
disc, rather broad, parallel-sided, separately rounded at the apex, and with rather prominent subapical 
callosities ; finely punctate-striate, the interstices densely punctate. Beneath densely punctate. 
Prosternum slightly depressed along the middle. Ventral segments 1 and 2 broadly and shallowly 
excavate, and clothed with rather narrow scales, in the, d, the vestiture of the corresponding space in 
the 9 similar to that of the rest of the surface. 
Length 44-63, breadth 2-27 millim. (3 @.) 
Hab. Mexico! (Zruqui, in Mus. Brit.; Herrera, in US. Nat. Mus.), Durango 
(Dr. Palmer, in U.S. Nat. Mus.), Guanajuato, Parada (Sallé), Matamoros Izucar (£6ge), 
Tehuantepec (Mus. Brit.). 
Numerous examples, the selected types (¢ 2) being from Guanajuato. Very like 
T. mucorea, Lec., but with the rostrum less curved in the male, and elongated and 
almost straight in the female, the propleura with, at most, one or two small partially 
denuded spots on the flanks, the ventral segments 3 and 4 with a narrower bare space 
at the base. The long and almost straight rostrum of the female separates 7. soror 
from all the other species described by Casey. | 
5. Trichobaris pellicea. (Tab. XX. figg. 24*, 24a, ¢.) 
Baridius pelliceus, Boh. in Schénh. Gen. Cure. viii. 1, p. 160°. 
Trichobaris téaana, Lec. Proc. Am. Phil. Soc. xv. p. 288°; Casey, Aun. N. York Acad. Sci. vi. 
pp. 563, 566 *. 
Hab. Nortu America, New Mexico, Colorado’, Texas? ?.—Mexico! (Trugut, in 
Mus. Brit.), Durango city (Hége), Matamoros Jzucar (Sailé), Mexico city (U.S. Nat. 
Mus.), Puente de Ixtla (Wickham). 
bf 
The “type” of this species, communicated by Dr. Sjéstedt, is labelled ‘* Calif.,” 
and it does not differ from the N.-American 7. terana, Lec, ‘This insect may be 
known by tle dense uniform vestiture of the upper and under surfaces, the scutellum 
only being partially denuded, and its narrow, rather convex shape. ‘The ventral 
depression of the male is clothed with narrower setiform scales. In some of the 
Mexican specimens the vestiture of the upper surface is brown with a few white scales 
intermixed, the sides of the prothorax being also white. 7. texana, according to 
Bridwell, attacks the bull nettle (Solanum rostratum). The length varies from 34-6, 
and the breadth from ]4-23 mm. 
6. Trichobaris cylindrica. 
Trichobaris cylindrica, Casey, Ann. N. York Acad. Sci. vi. pp. 563, 567°. 
Hab, Nortu America, Arizona !.—Mexico, Monclova in Coahuila (Dr. Palmer). 
* Foreshortened in our figure. 
