266 HEMIPTERA-HETEROPTEBA. 
converging carinsz on the disc extending from the spines forwards. LElytra a little longer than the 
abdomen. Abdomen with a long, straight, posteriorly directed spine at each of the outer apical angles of 
the sixth connexival segment; the segments 1-5 in the male, and 1 and 2 in the female, each armed 
with a spine at the outer apical angles, the first three spines in the male longer than the others. 
Length 12-14, breadth 2-23 millim. (¢ 2.) 
Hab. Panama, Bugaba, Volcan de Chiriqui, Caldera (Champion). 
Four females and one male. This species is extremely like D. pilicornis, Stal, the 
type (2) of which is before me; but in the female of that insect the connexival 
segments 1-5 are each armed with a spine, the eyes are not so prominent, and the long 
spines at the apex of the abdomen are curved, instead of straight, as in the Panama 
examples. D. macra, Stal, from Brazil, described from a mutilated male specimen, is 
another very nearly allied form. In the mature examples of D. angustata the elytra 
are more or less distinctly bifasciate beyond the middle. 
2. Debilia rufescens, n. sp. (Tab. XVI. figg. 9, 9a, ¢ *.) 
Elongate, narrow ; vermilion-red, fading to testaceous or stramineous, the two basal joints of the antenne and 
the four hinder femora, except at their apices, flavous, the membrane and wings subhyaline. Head 
shorter than the pronotum, armed above with two long spines; the eyes moderately prominent and of the 
- same size in the two sexes. Pronotum as in D. angustata. Abdomen with a long straight spine at each 
of the outer apical angles of the sixth connexival segment in the male, the spines shorter in the female; 
the segments 1, 4, and 5 each with a very short, and 2 and 3 with a long, spine in the male, the segments 
1 and 2 only spined in the female. 
3. Terminal genital segment armed at the apex with a long, upwardly curved spine, which is truncate and 
bent downwards at the tip. 
Length 11-13, breadth 2-23 millim. (d 9.) 
Hab. Mexico, Teapa in Tabasco (H. H. Smith). 
Two males and one female. Very like D. angustata, but vermilion-red in colour, with 
the eyes much smaller in the males, and the spines at the apical angles of the first 
abdominal segment shorter (obsolete in one specimen) in this sex. The female can 
only be separated from that of D. angustata by the rufous coloration and the slightly 
shorter spines at the apex of the abdomen. In one of the specimens of D. rufescens 
there are traces of two darker fascie on the elytra beyond the middle. 
RICOLLA. 
Ricolla, Stal, Ofv. Vet.-Ak. Férh. xvi. p. 367 (1859), xxiii. p. 292 (1866); Enum. Hemipt. ii. 
pp. 68, 77. 
The species of this genus are easily distinguishable from all the allied forms by the 
bispinous knees. The abdominal segments 1-0 in the male and 1-6 in the female are 
each armed with a spine at the outer apical angles. 
1. Ricolla simillima. (Tab. XVI. fig. 10, ¢.) 
Ricolla simillima, Stal, Ofv. Vet.-Ak. Férh. 1859, p.. 3867+; Stett. ent. Zeit. 1862, p. 446°; Enum. 
Hemipt. i. p. 78°. 
* The insect is more elongate than represented by our artist. 
