ROCCONOTA.—SOSIUS. 275 
6. Rocconota octispina, (Tab. XVI. figg. 24, 24a, 2.) 
Rocconota octispina, Stal, Stett. ent. Zeit. 1862, p. 448'; Enum. Hemipt. ii. p. 79°. 
Hab. Mexico (coll. Signoret }*, in Mus. Vind. Ces.), 'Veapa in Tabasco (H. H. Smith) ; 
GUATEMALA, San Gerénimo, Volcan de Atitlan, Mirandilla, Paso Antonio (Champion) ; . 
Panama, Bugaba, Volcan de Chiriqui (Champion). 
We possess twelve specimens of this peculiar species, agreeing with the type ( ? ) 
now before me. In this insect the scutellum is covered with a dense white agglutinated 
tomentum, forming a heart-shaped patch, and the pronotum, corium, and pleura are 
set with widely scattered raised white points (similar to those visible in Heza similis) ; 
the abdominal segments 1-4 in both sexes are each armed with a spine at their outer 
apical angle, that on the fourth segment being much shorter than the others. The 
spines on the head and posterior lobe of the pronotum are long, and on the anterior 
lobe of the latter there are two prominent conical tubercles. ‘The males have the third 
joint of the antenne slender, and the terminal genital segment armed with a short 
spine in the centre at the apex. A specimen from Bugaba is figured. 
SOSIUS, n. gen. 
Head rather more than half the length of the pronotum, tumid behind the eyes, narrowing posteriorly into a 
short neck, armed above in front with two long, anteriorly curved, acute spines, and with a short spine on 
each of the gene, the eyes moderately large in both sexes ; rostrum with joint 1 as long as 2 and 3 united ; 
antenne long and slender, joint 3 not thickened in the male. Pronotum as long as broad, subpentagonal, 
deeply emarginate behind, the posterior lobe with two long acute spines on the disc and a similar spine 
at each of the lateral angles. Scutellum with an obtuse prominence at the apex. Elytra about reaching 
the apex of the abdomen ; the outer area of the membrane slightly shorter than the inner. Abdomen 
elongate, narrow at the base, gradually widening to the apex of the fourth segment, the fifth and sixth 
segments abruptly and conjointly foliaceous in both sexes, the fifth acutely produced at the outer apical 
angles, the sixth rapidly narrowing behind, with the apex rounded or subtruncate. Legs moderately 
long, the anterior pair stout, the two other pairs slender; anterior femora greatly incrassate and about 
as long as the hind femora, the latter not reaching beyond the apex of the fourth ventral segment. 
Mesopleura neither plicate nor tuberculate. Claws appendiculate. 
This genus is readily recognizable by the conjointly and abruptly dilated fifth and 
sixth connexival segments, the margins of these segments (as in certain species of 
Phymata) forming an acute-angled foliaceous plate. The legs, compared with the 
abdomen, are rather short, the anterior pair stout, the two other pairs slender. Sosius 
approaches Locconota, Stal. 
1. Sosius foliaceus, n. sp. (Tab. XVI. figg. 25, 25a, 3.) 
Obscure ferruginous, sparsely clothed with greyish pubescence ; the antenne with joint 1 fuscous, biannulated 
with fiavous or ferruginous, the other joints ferruginous ; the anterior legs fuscous or fusco-ferruginous, 
the femora indistinctly annulated with ferruginous, the tarsi flavescent ; the intermediate and hind legs, 
the second and third joints of the rostrum, and in one specimen the first three ventral segments, flavous, 
the femora fuscous at the apex and sometimes with a fuscous ring beyond the middle. Pronotum sulcate 
35* 
