352 HEMIPTERA-HETEROPTERA. 
_ According to Montandon5 this species is. fairly abundant from Costa Rica south- 
wards to the Argentine Republic, and more southern in its distribution than M. fuscipes. 
Two females from Purula and Guatemala city seem to belong here: they both have 
the two triangular pieces forming the terminal genital segment greatly developed, 
and the preceding ventral segment very deeply emarginate. In the specimen from 
Guatemala city (found in company with both sexes of MV. fuscipes) the sixth ventral 
segment (as in a female before me from Colombia) is much swollen at the sides 
anteriorly. The male has the last genital segment broad, and the preceding segment 
is not foveate on the right side. Our figures of the genital segments are taken from 
a Costa Rican male and the Purula female. 
b. Anterior femora angularly dilated at the middle. 
4, Mononyx raptorius. (Tab. XX. figg. 27, 27 a.) 
Naucoris raptoria, Fabr. Syst. Rhyng. p. 111°. 
Mononyz raptorius, Stal, Hemipt. Fabr. i. p. 184°; Berl. ent. Zeitschr. vii. p. 405°; Enum. Hemipt. 
v. p. 189* (nec Burm., Amyot et Serv., and Herr.-Schaff.) ; Mont. Bull. Soc. Bucarest, viii. 
pp- 395, 402’. 
Mononyx fusco-conspersus, Stal, Rio Jan. Hemipt. i. p. 82°. 
Hab. Panama, near the city (Champion).—Sovrn America!?, Guiana ®, Brazil ?~%. 
A single specimen only of this species has been seen from within our limits. 
M. raptorius is easily recognizable by the form of the anterior femora, as well as by 
its small size, &c. 
Fam. NEPIDZ. 
CURICTA. 
Curicta, Stal, Ofv. Vet.-Ak. Férh. xviii. p. 202 (1861). 
Nepoidea, Montandon, Ann. Soc. Ent. Belg. xxxix. p. 476 (1895). 
A Tropical-American genus including four described species, two of which occur 
within our limits. It appears to replace Nepa* in the warmer parts of the New World. 
The males have the terminal ventral segment more acutely produced than the females. 
In C. volwemi the anterior tibie (as noted by M. Martin) are relatively shorter than 
in C. scorpio. 
1. Curicta scorpio. (Tab. XXI. figg. 1, 1a, 3.) 
Curicta scorpio, Stal, Ofv. Vet.-Ak. Forh. xviii. p. 2031; Stett. ent. Zeit. 1862, p. 462. 
_* The North-American Nepa apiculata (Harris), Uhler, was not noticed by Dr. Ferrari in his Monograph 
of the genus [Ann. k.-k. Naturhist. Hofmuseum, iii. pp. 161-194 (1888)]. He gives (loc. cit. p. 181) 
N. kohlit as from “ Mexico??” and “ Africa ?,” but further evidence is required before this species can be 
included in the Mexican fauna. 
