34 HEMIPTERA-HETEROPTERA. 
Var. ¢. 
Body beneath bluish black, upper surface as in var. a. 
Var. d. 
As in var. c, but pronotum with a central longitudinal fascia concolorous with lateral borders. 
Var. @. | 
As in vars. c and d, but apex of scutellum alone sanguineous. 
Var. f. 
Above and beneath bluish black, concolorous. 
Uhler writes, ‘‘ thus far only one type of variety of this species has been found in the 
South-western United States.” 
2. Perillus virgatus. (Tab. III. fig. 22.) 
Oplomus (Perillus) virgatus, Stal, Stett. ent. Zeit. xxiii. p. 89. 28°. 
Perillus virgatus, Stal, En. Hem. i. p. 32. 32. 
Hab. Mexico !? (Mus. Berol., coll. Sign.). 
A variety of this species in the collection of the Berlin Museum has the whole disk 
of the pronotum, corium, and abdomen beneath black. . 
3. Perillus circumcinctus. (Tab. IV. fig. 6.) 
‘Perillus circumcinctus, Stal, Stett. ent. Zeit. xxiii. p. 89. nota’; En. Hem. i. p. 82.4; Riley, 4th 
Rep. Nox. Ben. Ins. Missouri, p. 19, fig. 6; Uhler, Bull. U.S. Geol. & Geog. ii. p. 2827; 
Proc. Bost. Soc. Nat. Hist. vol. xix. p. 870°. 
Hab. Norra America, Nebraska, Canada, New England 23.—Mexico!; Panama 2 3.— 
TRINIDAD 23, 
The specimen figured is from Mexico, and appears to be a varietal form of this species. 
It is dark olivaceous above, with the antenne (imperfect in the specimen examined) and 
legs concolorous. It is from the collection of Dr. Signoret. Prof. Riley states “it is 
a not uncommon species in Missouri, and was found by Mr. Reed, of London, Ontario, 
preying voraciously upon potato bugs.” [The larve of Doryphora decemlineata is 
evidently referred to. | 
CORYZORHAPHIS. 
Coryzorhaphis, Spinola, Ess. Hém. p. 353 (1837); Dall. List Hem. i. p. 77.14; Stal, Ofv. Vet. 
Ak. Férh. 1867, p. 498. 
Coryssorhaphis, A. & 8. Hist. des Hém. p. 79 (1848). 
Gilva, Walk. Cat. Het. i. p. 141 et 239 (1867). 
Four species are known—three hitherto only received from Brazil and Guiana, the 
other common to Colombia and Central America. 
The anterior femora are unarmed, a character which will alone separate this genus 
