LEIOSCYTA.—BOLBONOTA. 15 
central carina acutely raised and marked with white at the middle and before the apex; the sides above 
the eyes show no trace of carine ; the tegmina are black, dull in the middle, strongly punctured towards 
the base, except on the central basal area, with the apical third or fourth part very abruptly and clearly 
hyaline, the line being drawn straight across at right angles to the apex of the prothorax; legs black, 
with the tarsi and knees lighter or entirely fuscous. 
Long. 4 millim.; lat. int. hum. 2 millim. 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
This is a very distinct little species, and differs considerably in appearance from the 
two preceding. 
TYLOPELTA, gen. nov. 
Genus Tropidoscyte affine, sed pronoto maxime inequali et gibbero areisque tegminum (discoidalibus tribus, 
apicalibus quinque) minus oblongis. 
Allied to Tropidoscyta, but distinguished by the extremely uneven outline of the 
pronotum, which is level or almost level in the last-mentioned genus, but in the present 
genus is deeply and broadly excised in the middle and again before the apex; besides 
the central and two side carine there is only one short and broad carina above the 
eyes; the tegmira have the areas less oblong. 
1. Tylopelta gibbera. (Tab. II. figg. 1, 1a.) 
Tropidoscyta gibbera, Stal, Kongl. Sv. Vet.-Ak. Handl. Band vii. 1, p. 46°. 
Hab. Norta America, Texas !.—Mexico, Orizaba (7. H. Smith & F. D. G.), Cuerna- 
vaca in Morelos, Vera Cruz, Teapa in Tabasco (H. H. Smith); Guatemata, Chiacam and 
San Gerénimo in Vera Paz, Rio Naranjo, San Isidro, Panajachel, Calderas (Champion) ; 
Panama, Volcan de Chiriqui (Champion). 
Through the kindness of Dr. Aurivillius I have been enabled to verify this insect by 
comparison with one of Stal’s types of Tropidoscyta gibbera, which he records from 
Texas. There are specimens in the Vienna Museum collection labelled ‘‘ arcuata, 
from Mexico,” and one labelled “ arcuata det. Signoret,” without any indication of the 
genus, except that it appears by its position to be referred to Bolbonota ; it is, how- 
ever, nearer to Tropidoscyta than to the last-named genus, and certainly seems worthy 
of generic rank. We figure a specimen from Teapa. 
BOLBONOTA. 
Bolbonota, Amyot et Serville, Hist. Nat. des Ins. Hémipt. p. 537 (1843); Fairmaire, Ann. Soc. 
Ent. Fr. sér. 2, iv. p. 257. 
The members of this genus are small, dark, globose insects which, in a state of rest, 
fold their legs close against their body and look just like round black seeds. No insect 
could look more unlike the foliaceous species of Membracis, and yet, so gradual and so 
complete is the transition through intermediate species, that the older authors included 
them under the same genus. Four species of Bolbonota form Germar’s division D, 
