NEUROCTENUS. 111 
of the apical process, the fourth joint comparatively short, scarcely so long as the 
second. One of the types, a female, has been examined, and from this our figure is 
taken. 
9. Neuroctenus distanti, (Tab. VII. fig. 20, 9.) . 
Neuroctenus distanti, Bergr. Ofv. Finsk. Vet.-Soc. Forh. xxix. p. 184 (2) (1887) *. 
‘Hab. Mexico (Mus. Berol.'). 
This insect is described as having the antenne rather stout, with the first joint 
extending very little beyond the apex of the head, the second and third joints subequal, 
the second slightly shorter than the first, the fourth shorter than the third; the 
spiniform antenniferous processes short, parallel externally; the post-ocular spines 
extending to beyond the eyes; the pronotum with the sides rounded and not sinuate ; 
the corium with the apical margin bisinuate; the venter slightly convex, with the 
posterior margins of segments 2-5 a little thickened. The body is elliptic in shape, 
opaque, black, with the tarsi fulvo-ferruginous, the membrane lutescent at the base. 
To judge from a drawing made for me by Fr. H. v. Zglinicka from the type ( @ ) in 
the Berlin Museum, WV. distanti is very closely allied to NV. niger, Bergr.; but it 
appears to be less coarsely granulate, and to have the basal joint of the antenne a little 
longer, the connexivum more distinctly carinate towards the outer margin, and the 
genital segments somewhat differently formed. Our figure is taken from this drawing. 
10. Neuroctenus niger. (Tab. VII. fig. 21, 2.) 
Neuroctenus niger, Bergr. Wien. ent. Zeit. xiv. p. 170 (cd 2) (1895) *. 
Hab. Mexico, Cuernavaca in Morelos (Bilimek, in Mus. Vind. Ces.1). 
A female specimen of this species has been communicated by Dr. Bergroth. 
N. niger is separable from most of its allies by the short, stout antenne, the coarsely 
granulate head and pronotum, the latter with the sides not sinuate, the prominent 
post-ocular spines, the rugosely punctured connexivum, &c. 
11. Neuroctenus: mexicanus, n. sp. (Tab. VII. fig. 22, ¢.) 
Mezira mesta, Walk, Cat. Hemipt. Heteropt. vii. p. 23 (2) (part.) (nec Stal)’. 
Ovate, black, the abdomen, the tips of the antenn, and the tarsi piceous or fusco-ferruginous, the venter 
paler, the membrane with two obscure luteous spots at the base; the upper surface finely granulate, the 
connexivum finely rugulose. Head somewhat rounded at the base; the apical process stout, reaching as 
far as the apex of the first antennal joint, slightly notched at the tip; the spiniform antenniferous 
processes moderately long, acute, subparallel externally ; the post-ocular portions armed with a short 
spine, which extends outwards as far as the eyes; antenne moderately stout, joints 1-3 gradually 
increasing in length, 4 ovate, shorter than 3. Pronotum short, very feebly sinuate at the sides, 
emarginate in front. Corium acute at the tip, the apical margin bisinuate. Connexivum moderately 
broad, rounded at the sides posteriorly in both sexes; the sixth segment obliquely narrowed in the 
male and with a prominent, sinuous, oblique median plica, Venter flattened, the fifth segment with the 
median portion of the apical margin truncate in the male and bisinuate in the female. Terminal genital 
