108 HEMIPTERA-HETEROPTERA, 
small yellowish spots in front; the upper surface closely and finely, the connexivum very minutely, 
granulate. Head (exclusive of the apical process) broader than long, rounded behind ; the apical process 
subconical, long, extending to a little beyond the middle of the first antennal joint, notched at the tip; 
the spiniform antenniferous processes short ; the post-ocular spines short, sometimes extending outwards 
as far as the eyes; antenne moderately long, comparatively slender, joints 2 and 3 subequal in length, 
each slightly longer than 1, 4 shorter than 3, fusiform. Pronotum short, sinuate at the sides, the anterior 
angles rounded and projecting a little forwards. Corinm reaching to a little beyond the first segment, 
the apical margin bisinuate. Connexivum very broad, rounded at the sides in the female; in the male 
widening from the base to the apex of the third segment, with the fourth segment parallel and the fifth 
and sixth segments broadly and subarcuately dilated posteriorly, the sixth obliquely narrowing and with 
an oblique median fold. Terminal genital segment of the male strongly transverse; the lobes of the 
first genital segment rather prominent. Terminal genital segment of the female subtruncate. Beneath 
rugulose, dull; the venter flattened, each segment with a smooth oblong spot in the centre. Legs 
moderately long, the femora stout and granulate. 
Length 73-94, breadth 33-43 millim. (¢ 9.) 
Hab, GuaremMata, Purula in Vera Paz 4000 feet (Champion). 
Numerous examples, from the humid forests of the Atlantic slope. Allied to 
N. trigonus, Bergr., from the Pacific slope of Guatemala; differing from that insect, 
in the male sex, in being more widened behind, with the fifth segment more dilated at 
the sides posteriorly, the sixth segment with an oblique median fold (instead of a 
transverse one, as in JV. ¢rigonus), the antenne more elongate and with the apical joint 
shorter than the third. 
2. Neuroctenus trigonus. (Tab. VII. fig. 14, ¢.) 
Neuroctenus trigonus, Bergr. Ent. Tidskr. xv. p. 114 (¢) (1894) *. 
Hab. Guatemaua, Volcan de Agua 9000 to 10,000 feet (coll. Bergroth1; Champion). 
Two males of this species were found by myself on the Volcan de Agua. They are 
slightly larger than the type, communicated by Dr. Bergroth, and have the upper 
surface a little more coarsely granuJated. All three specimens have a transverse ridge 
or fold on the sixth connexival segment beyond the middle, this being preceded by a 
small tubercle, which is placed near the inner margin. 
3. Neuroctenus dilatatus. (Tab. VII. fig. 15, 3.) 
Neuroctenus dilatatus, Bergr. Hut. Tidskr. xv. p. 115 (¢) (1894) °. 
Hab. Mexico, Atoyac in Vera Cruz (Schumann: 2); GuatTEMaua, Zapote (Champion: 
6 2); Costa Rica (coll. Montandon 3). : 
Of this species we possess nine specimens, eight of which are from Guatemala. 
Recognizable by the broadly dilated, comparatively smooth, connexival segments, which 
are more or less ferruginous in colour, the long and rather slender antenne, &c. The 
insect varies a good deal in size. The sixth connexival segment of the male is without 
a median fold. The type has been examined. The terminal genital segment of the 
female is subtruncate at the apex. A male from Zapote is figured. 
