112 HEMIPTERA-HETEROPTERA. 
segment of the female slightly emarginate at the apex ; the lobes of the first genital segment broad and 
rounded. Femora granulate. 
Length 73-73, breadth 3;,-3} millim. (d 2.) 
Hab. Mexico, Oaxaca (Sallé, Mus. Brit.1). 
One male and two females of this species are contained in the British Museum, 
and we also possess a male of it from Sallé. Very like NV. amplus, but relatively 
narrower, especially in the female, the male with a conspicuous fold on the sixth 
connexival segment, the pronotum more feebly sinuate at the sides. Also very like 
N. uhleri, Bergr., but broader and a little more finely granulate, the terminal genital 
segment of the female not deeply emarginate, the genital lobes shorter. Walker 
confused two genera and several species under the name Mezira masta. The insect is 
unknown to Dr. Bergroth. 
12. Neuroctenus amplus, n.sp. (Tab. VII. fig. 23, 2.) 
Ovate, depressed, dull, black, the abdomen piceous or fusco-ferruginous, the tips of the antenne and the coxe 
and tarsi fulvous or ferruginous, the membrane with two luteous spots at the base; the upper surface 
finely granulate, the connexivum very finely rugulose. Head somewhat rounded at the base; the apical 
process stout, long, reaching as far as the apex of the first antenna] joint, slightly notched at the tip ; 
the spiniform antenniferous processes acute, moderately long, subparallel externally ; the post-ocular 
portions armed with a rather prominent spine, which projects outwards as far as or to a little beyond the 
eyes; antenne moderately stout, rather long, joints 1-3 increasing in length, 1 and 4 subequal, 4 ovate. 
Pronotum short, emarginate in front, the sides feebly sinuate. Corium acute, the apical margin bisinuate. 
Connexivum broad, rounded at the sides posteriorly in the female; in the male with the fifth and sixth 
segments obliquely narrowed, and their outer apical angles rounded externally. Beneath dull and very 
finely rugulose. Venter flattened ; fifth ventral segment with the median portion of the apical margin 
truncate in the male and bisinuate in the female. Terminal genital segment of the female unemarginate 
at the apex, the lobes of the preceding segment broadly rounded. Femora granulate. 
Length 6,9,;-84, breadth 3-4 millim. (6 @.) 
Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith). 
One male and three females. Very like WV. dilatatus, Bergr., but with a stouter and 
more cylindrical apical process to the head, and differently formed antenne, joints 
1-3 increasing in length (long and subequal in WN. dilatatus), 1 short and not longer 
than the apical process. NV. whleri is also an allied form, but it is narrower and has 
shorter antenne, with joints 1-3 subequal in length. This last-mentioned species 
(a female only of which is before me) is compared by Dr. Bergroth with W. simplex, 
Uhler, and NV. punctulatus, Burm. 
13. Neuroctenus uhleri. (Tab. VII. fig. 24, 2.) 
Neuroctenus uhleri, Bergr. Wien, ent. Zeit. xiv. p. 169 (¢ 2) (1895) *. 
Hab. Mexico, Orizaba (Bilimek, in Mus. Vind. Ces.1), 
This species is oblong in shape, and pitchy-black in colour, the abdomen ferruginous, 
with the ventral surface yellowish in the middle; the antenne are rather short, with 
