188 HEMIPTERA-HETEROPTERA. 
NARVESUS. 
Narvesus, Stal, Ofv. Vet.-Ak. Férh. xvi. pp. 383, 384; Hemipt. Fabr.i. p.128, nota; Enum. Hemipt. 
ii, p. 124; Reuter, Act. Soc. Fenn. xii. p. 675 (1882). 
A monotypic genus peculiar to the Southern United States, Mexico, and the Antilles. 
1. Narvesus carolinensis, (Tab. XI. fig. 19, 2.) 
Narvesus carolinensis, Stal, Ofv. Vet.-Ak. Férh. 1859, p. 385’; Enum. Hemipt. ii. p. 124°; 
Reuter, Act. Soc. Fenn. xii. p. 748, t. 3. figg. 51, 52°; Uhler, P. Z. S. 1893, p. 706‘, and 
1894, p. 210°; Bull. U.S. Geol. & Geogr. Surv. 1. p. 332°. 
Hab. Norta America, Missouri ®, Carolina? ®, Texas? 6&,—Mexico, Amula in Guerrero 
(H. H. Smith: 2), Valladolid in Yucatan (Gauwmer: 3 ).— ANTILLES, Cuba? §, St. 
‘Vincent 4, Grenada °. 
Two specimens only of this species have been received from within our limits. The 
female is considerably larger than the male, and it has the dark patch on the outer cell 
-of the membrane very elongate ; in the first-mentioned sex the apex only of the second 
joint of the antenne is clothed with long hairs, whereas in the male the antennz are 
hairy throughout, as noted by Stal 2. 
DIADITUS. 
Diaditus, Stal, Ofv. Vet.-Ak. Forh. xvi. p. 883 (1859); Hemipt. Afr. iii. p. 150; Hemipt. Fabr. i. 
p. 128; Enum. Hemipt. n. p. 128, nota. 
The two described species of Diaditus are from Buenos Ayres or Monte Video. ‘The 
two others now added agree very well with Stal’s definition of the genus, but in one of 
them the-.anterior tarsi have their two apical joints almost fused into one, a peculiarity 
also observable in the type of D. semicolon. The head is unarmed beneath, subcylin- 
drical, with the ante-ocular portion a little longer than the post-ocular, and the lower 
anterior portion not extending forwards beneath the base of the jug or frontal spines, 
the latter being long and porrect; the antenniferous tubercles are armed externally 
with .a short oblique spiniform process (appearing emarginate above the points of 
insertion of the antenne); the basal joint of the antenne is not longer than the 
head; the rostrum is short, with the basal joint about reaching to the middle of the 
eyes and as long as the two others united; the anterior femora are unarmed, and very 
little stouter than the others; the posterior femora in the males nearly reach the apex 
of the abdomen; the scutellum is produced into a horizontal spiniform process at 
the apex. 
Antenne rather elongate, with joint 1 almost as long as the head, 2 about one- 
half longer than 1, and clothed with long projecting hairs (3) ; frontal 
spines moderately stout, somewhat pointed ; eyes very large ; anterior ‘tarsi 
freely 8-jointed «6 6 6 ww ee we ee ew ee ee e+ Aeirticornis, 0. sp. 
