116 HEMIPTERA-HETEROPTERA. 
5. Aneurus tenuicornis, n. sp. (Tab. VII. figg. 30, ¢ ; 30 a, antenna; 
31, apex of the abdomen, 2.) 
Ovate, rather elongate, shining, piceous or castaneous, the abdomen above and beneath rufo-ferruginous, with 
the connexivum usually darker. Head transversely rugulose, with obtuse antenniferous tubercles and 
short post-ocular spines ; antenne considerably more than twice the length of the head, joint 1 moderately 
stout, oval, 2-4 slender, 2 one-half longer than 1, 3 as long as or alittle longer than 2, 4 nearly as long 
as 2 and 3 united, 2 and 8 slightly thinner at the base, 4 fusiform, 3 and 4 pilose. Pronotum feebly 
emarginate at the base, the raised portions smooth and shining, the depressions rugulose. Scutellum 
transverse, rugulose, an oblong space in the middle in front excepted. Connexivum smooth, except along 
the outer margin. Legs rather long, the femora clavate and sparsely granulate. Terminal genital 
segment of the male long and convex, extending beyond the genital lobes, almost smooth. 
Length 43-6, breadth 2-23 millim. (¢ 2.) 
Hab. Guatemata, Capetillo (Champion); Panama, Volcan de Chiriqui 2500 to 4000 
feet (Champion). 
Var.? Smaller and a little less elongate; the antenne shorter, with joint 2 not much longer than 1; the 
elytra yellowish at the base. 
Length 4, breadth 17 millim. (9.) 
Hab. Panama, Volcan de Chiriqui (Champion). 
Found in numbers at Capetillo, sparingly in Chiriqui. The variety (?) is represented 
by a single specimen. This species is allied to A. (Crimia) marginalis, Walk. (=west- 
woodi, Bergr.), from Colombia; but differs from it in having joints 2—4 of the antenne 
much more slender, and 4 fusiform, and the pronotum smoother. A. (Crimia) simulans, 
Walk., from Brazil, of which there are numerous specimens in the British Museum, is 
also very like A. tenuicornis, but it is smaller and narrower, and has stouter antennae, 
the apical joint being fusiform in both species. The small variety (?) is very like 
A. simulans, but it is broader and not so smooth, and has more slender antenne. 
A, simplex, Uhler *, from New England, is also described as having long and very 
slender antenne, but with the third joint less than one-half the length of the fourth ; 
it is, however, more coarsely granulate than A. tenuicornis. A. flavomaculatus, Dist., 
from Ecuador, has the antenne stouter, the pronotum more rugose, the antenniferous 
tubercles less obtuse, and the elytra broadly yellowish at the base. Capetillo specimens 
are figured. The insect is unknown to Dr. Bergroth. 
ANEUROSOMA, n. gen. 
Scutellum equilaterally triangular, as long as the pronotum. Pronotum truncate at the base. Abdomen (?@ ) 
very broadly truncate-emarginate at the apex. The other characters as in Aneurus. 
The single species referred to this genus has all the characters of Aneurus, save the 
form of the scutellum. It also resembles Jsodermus, Er., but has a rostral channel. 
* The North-American A. septentrionalis, Walk., has rather stout antenne, but with the joints of about the 
same length as in A. simplex, 
