HEMIPTERA-HETEROPTERA. 461 
punctate ; the head is twice as long as broad and the pronotum twice as long as its basal breadth, with 
its lateral angles distinctly nodulose. 
Long. 8-10 millim. 
Hab. Mexico, Chilpancingo in Guerrero (H. H. Smith); Panama, Volcan de Chiriqui 
8000 feet (Champion). 
Mr. Smith took six specimens of this species in Mexico, and Mr. Champion found 
another example on the Volcan de Chiriqui. I have carefully compared WV. caducus 
with the description of N. gracilipes, Stal, found throughout the United States, from 
which it appears to be quite distinct. 
XENOGENUS. (To follow the genus Harmostes, p. 168.) 
Xenogenus, Berg, Hem. Argent., Add. & Emend. p. 45 (1884). 
This genus can at once be distinguished from Harmostes by the non-produced and 
non-spined antenniferous tubercles, the elevated ocelli, elongate body, &c. 
Xenogenus was founded for the reception of a species received from the Argentine 
Republic and Uruguay. 
1. Xenogenus extensum, n. sp. (Tab. XXXIX. fig. 26.) 
Head, antennex, pronotum, scutellum, body beneath, and legs pale ochraceous; corium and membrane pale 
hyaline, the corium with the margins and veins ochraceous, spotted with carmine-red, and with a distinct 
fuscous spot near inner angle and at apex; membrane pale hyaline; femora spotted with brownish, the 
spines of the posterior tibia black ; tibiee spotted with black, the apices of the tarsi also black ; antennse 
with the basal joint margined with black externally and about reaching the apex of the head, second and 
third joints subequal in length and only very slightly longer than the fourth joint; lateral margins of the 
pronotum entire, neither crenulated nor serrated; pronotum coarsely and thickly punctate, with a 
central pale levigate line; head and scutellum finely and sparingly punctate; body beneath finely 
punctate and spotted with carmine-red. 
Long. 8 millim. 
Hab. Mexico, Orizaba (Ff. D. G.). 
Only a single example of this species was obtained; it has many characters in 
common with X. picturatum, Berg, found in the Argentine fauna. 
RENODAUS, gen. nov. (To follow the genus Pheaz, p. 413.) 
Head large, broad, and subtriangular, posterior margin equal in width to anterior margin of pronotum, the eyes 
non-prominent, the apex somewhat acute, the central lobe prominent; antennz inserted about midway 
between the eyes and apex, first joint shorter than the head, second joint longest, third short and 
strongly incrassated towards apex, fourth incrassated and longer than third; ocelli absent. Pronotum 
somewhat long, the posterior margin convex, gibbous near centre and from thence angularly depressed to 
base; lateral margins sinuate, the lateral angles subprominent, the anterior angles rounded. Scutellum 
very small, its apex subnodulose. Corium with the lateral margin concavely sinuate near base and 
widened towards apex; membrane small. Rostrum about reaching the intermediate coxe. Femora 
moderately incrassated ; posterior tibiz long. 
This is another of those aberrant genera of Pyrrhocoride already represented by 
Arhaphe, Japetus, and Pheax. 
BIOL. CENTR.-AMER., Rhynch., May 1893. 59 
