HEMIPTERA-HETEROPTERA. _ 419 
characters agreeing fairly well with Stal’s diagnosis, I have refrained from proposing a 
new genus. 
Herdonius was founded for the reception of a single species from Riv Janeiro. 
1. Herdonius (?) panamensis, n. sp. (Tab. XXXVI. fig. 13.) 
Black; corium dark purplish ; head, tibie, and apices of the femora castaneous; antenne ochraceous; margins 
of the lateral angles of the pronotum, apical spine to the scutellum, basal margin of corium, and a trans- 
verse central fascia to same and the cuneus greyish-white ; membrane dark fuscous, the lateral margins 
paler; anterior and intermediate femora longly and thickly setose beneath; pronotum thickly and finely 
punctate. 
Long. 5 millim. 
Hab. Panama, Bugaba (Champion). 
A single example in poor condition. 
» 
LYGDUS (p. 242). 
2. Lygdus mimicus, n.sp. (Tab. XXXVI. fig. 14.) 
Body above reddish-ochraceous ; head, antenne, a broad subtriangular fascia to pronotum, scutellum, clavus, a 
broad transverse fascia to corium, cuneus, membrane, body beneath, and legs, black; lateral areas of 
prosternum, and lateral margins of corium as seen beneath, reddish-ochraceous. The abdomen is convexly 
rounded and dilated on each side, the lateral margins of the first, second, and third segments extending a 
little beyond the margins of the corium. 
Long. 10 millim. 
Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith). 
This species, of which Mr. Smith sent us a single example, is an extraordinary mimic 
of aspecies of the Lygeid genus Oncopeltus. The antenne are less strongly hirsute 
than in the other species which I described from the State of Panama. 
Another species from Venezuela is contained in my collection *. 
PIASUS (p. 242). 
Piasus illuminatus (p. 242). 
To the locatity given, add :—Panama, David, Bugaba (Champion). 
CYLAPUS. 
Cylapus, Say, Hem. N. Am. p. 792 (1831) ; Compl. Writ. i. p. 347 (1869). 
Valdasus, Stal, huj. op. p. 243. 
Since I wrote on the Capside, Mr. Otto Heidemann (Proc. Ent. Soc. Wash. 189], 
* Lygdus signoreti, n. sp. 
Black ; anterior dilated lateral margins of the pronotum and corium (excluding base and apical marginal area) 
sanguineous ; membrane fuscous, its apical margin paler. Long. 10 millim.— Hab. Vunezveta, La Guayra 
(Sallé). 
A single specimen, given to me by my late friend Dr. Signoret. 
53° 
