278 RHYNCHOPHORA. 
NAUPACTOPSIS, gen. nov. 
Prothorax and elytra truncate at the base; elytra in d oblong and but little wider than the prothorax, 
in @ much broader and widened to middle, with additional, interposed, abbreviated strie on the outer 
part of the disc, the outer striz entire, the humeri obtuse or angular, the lower margin sinuate ; rostrum 
broad, subquadrate, the scrobes lateral and obliquely descending, becoming shallow and much wider 
behind, the nasal plate triangular; eyes large, not strictly lateral, not prominent; joints 1 and 2 of the 
funiculus subequal in length; scutellum small; mesothoracic epimera moderately large, oblique ; 
metathoracic episterna dilated anteriorly ; first ventral suture arcuate ; posterior tibix narrowly laminate 
and biciliate at the apex, the glabrous articular surface very large and cavernous; body oblong, more or 
less squamose ; wings wanting or rudimentary. 
Type, WV. delumbis. 
The Mexican insects from which the above characters are taken may be briefly 
described as apterous Exophthalmi, with the elytra in the males very little wider than 
the prothorax, and the upper marginal border of the scrobes obliterated posteriorly, 
so that they appear to be dilated towards the eyes. These forms were rightly rejected 
by Dr. Sharp when he enumerated our apterous Otiorhynchids, as they have a 
distinctly exposed scutellum and the meso- and metasternal side-pieces shaped as in 
the alate representatives of the group, and therefore belong to Horn’s Division II. 
The sexes of NV. delumbis and WN. auropictus are so dissimilar that they might be 
mistaken for separate species. 
1. Naupactopsis delumbis, sp. n. (Tab. XII. figg. 29, ¢; 30, 2.) 
3. Naupactus delumbis, Chevr. in litt.’. 
2. Naupactus acutipennis, Chevy. in litt.’. 
Elongate, narrow, and rather convex (¢), broad and pyriform (@), nigro-piceous or black; clothed with 
minute, brown, cinereous, or cupreous scales, the prothorax with a denser vitta of larger whitish or 
coppery-white scales on each side of the disc, extending forwards on to the head and rostrum and 
backwards for some distance down the disc of each elytron, and the elytra with a sinuous line of similar 
scales exterior to it (often divided into two oblique streaks) running round to the suture at about 
one-fourth or one-fifth from the apex; the surface also set with a few very short, curled, pallid sete. 
Head and rostrum rugosely punctate, the rostrum not or obsoletely carinate, the nasal plate triangular 
and limited behind by a v-shaped ridge, the inter-ocular fovea small or wanting; joints 1 and 2 of 
the funiculus equal in length; eyes rather prominent. Prothorax ( ¢) convex, about as long as broad, 
rounded at the sides, and almost equally narrowed in front and behind, (2 ) parallel-sided behind and 
subtransverse, truncate at the base, not or obsoletely canaliculate down the middle ; coarsely, confluently 
foveato-punctate, and with a fine dense interstitial punctuation. Scutellum small, transverse. Elytra 
truncate at the base, oblong-oval and with subangular humeri in ¢, broader, rapidly widened to the 
middle, abruptly, conically acuminate at the apex, and with obtuse humeri in 9; coarsely punctate- 
striate, the strie diverted and oblique (and crowded in ¢) on the outer part of the disc anteriorly, the 
interstices densely punctulate, feebly convex or flat. Tibia feebly denticulate. 
Length 9-13}, breadth 2,9,-44 millim. (¢ 9.) 
Hab. Mexico (Truqui, in coll. Fry; Flohr; Hoge, in coll. Solari), Juquila in 
Oaxaca (Sallé). 
I have seen fifteen examples of this species, including seven from Juquila, labelled 
with one or the other of the above-quoted MS. names. It differs from N. auropictus 
