CARDIASTETHUS.—PORONOTUS. 333 
We possess eight examples of this species from within our limits, two only of them 
being from Guatemala. Very like C. limbatellus, but with the pronotum differently 
coloured, more narrowed anteriorly, the sides less rounded, the posterior lobe smoother 
and less depressed on the disc. The description is mainly taken from the Panama 
specimens, the others being immature or broken. The single example with a dark 
anterior lobe to the pronotum was obtained at an elevation of 8000 feet in Chiriqui. 
One of Dr. Reuter’s types of C. assimilis from §. Carolina has been examined, and 
it only differs from our specimens in having the elytra paler. The C. assimilis of 
Prof. Uhler’s Grenada list (P. Z. S. 1894, p. 201) belongs to a different species. 
PORONOTUS. 
Poronotus, Reuter, Ofv. Vet.-Ak. Forh. 1871, p. 561; Stal, Hemipt. iii. p. 102. 
This genus is dropped by Dr. Reuter in his Monograph. His types were Xylocoris 
discifer and X. constrictus, Stal, both from Brazil. The first-mentioned species is 
referred to Cardiastethus in the Monograph, and the second to Asthenidea. The name 
Poronotus is here retained for the latter, the type of which, as well as a second 
specimen from Mexico, I have examined. ‘This insect, incorrectly treated by Dr. Reuter 
as synonymous with his Asthenidea pallescens, is closely related to Cardiastethus. The 
pronotum is very deeply emarginate at the base; the deep transverse sulcus between 
the anterior and posterior lobes extends completely across (it is not limited to the dise, 
as in Cardiastethus); the posterior lobe is sulcate down the middle in front; the 
anterior lobe is short and convex, and in front of it there is a very distinct collar. 
The scutellum (as in Cardiastethus) has a broad, deep, transverse sulcus across the 
middle. ‘The elytra are finely pubescent, with the clavus exceedingly coarsely punc- 
tured and the other parts almost smooth; the embolium at the apex is as broad as the 
corium. ‘The wings are without a hamus in the cell. The metasternum is short; the 
orifice of the metastethium is long and curved backward. 
1. Poronotus constrictus. 
Xylocoris constrictus, Stal, Rio Jan. Hemipt. i. p. 44’. 
Poronotus constrictus, Reut. Ufv. Vet.-Ak. Forh. 1871, p. 5627; Stal, Enum. Hemipt. iii. p. 102°. 
Asthenidea constricta, Reut. Monogr. Anthocorid. p. 193 *. 
Hab. Mexico, Orizaba (Bilimek, in Mus. Vind. Ces.).—Brazit, Rio Janeiro !~4, 
Bahia 3 +. | | 
There is a single specimen of this species from Orizaba in the Vienna Museum, 
labelled as having been named by Dr. Reuter; it agrees well with Stal’s type. 
