SCOLYTUS.—SCOLYTOPSIS. 128 
separated by narrow costate interstices, side-borders with short erect sete. Abdomen dull, closely 
punctured and shortly pilose, 2nd interstice with a very short tubercular apophysis. Upper margin of 
middle tibiee with fine irregular dentation. 
Length 4°7 millim. 
Hab. Mexico, Toxpam (Sallé).—Brazit, New Friburg ’. 
‘The one example from M. Sallé’s collection differs in no way from the type, which, 
if correctly labelled, is from a very distant locality. I have never seen a third 
example amongst numerous South-American Scolyti that I have examined. The elytral 
sculpture is remarkable ; the seriate punctures commonly found on each interstice are 
fused to form a stria indistinguishable from the true strie, so that the number of the 
latter and of the interstices is apparently doubled. There is no other described Scolytus 
for which it can be possibly mistaken. 
SCOLYTOPSIS, gen. nov. 
Differt a Scolyto elytris leviter convexis, circa marginem apicalem non impressis, ad latera supra metasternum 
fortiter emarginatis; abdominis segmentis tribus ultimis sursum reflexis. 
In the structure of the head, antenne, and legs this genus does not differ from 
Scolytus. The prothorax is similarly margined at the base and sides, the lateral border 
being somewhat more oblique. The elytra are gently convex above from base to apex, 
without the submarginal impression found in all species of Scolytus; their lateral 
border is very deeply excised opposite the metasternum, the borders of the excision, 
together with the side-margin of the prothorax, forming an obtuse triangle, the apex 
of which is behind the humeral prominence, and joining the horizontal portion in a 
rounded angle, just before the hinder extremity of the metathorax. The metasternum 
is not very long, its episterna are very wide, and are separated behind from the epimera 
by an indistinct oblique suture. The abdominal flexure commences at the base of the 
8rd segment; the first two are longer than the remaining segments, and are closely 
connate, the suture being curved towards the apex, and distinct only at the sides. The 
8rd and 4th segments are very short, not equal together to the 5th. 
The genus contains one species. 
1. Scolytopsis puncticollis, sp.n. (Tab. V. figg. 10; 10a, profile.) 
Oblonga, nigra, elytris subpiceis; prothorace anterius contracto, nitido, medio discrete subtilius, lateraliter 
conferte variolose punctato; elytris prothorace sesqui vix longioribus, subopacis, punctato-striatis, inter- 
stitiis lineato-punctatis vel substrigosis, versus apicem breviter seriato-squamosis. 
Mas. Fronte pilis fulvis dense comata. 
Long. 2°5-2°8 millim. 
Oblong, black, with the anterior border of the prothorax reddish, and the elytra obscure piceous. Front 
(d) concealed by a dense marginal fringe of decumbent fulvous hairs brushed down to the mouth; front 
( @ ) subconvex, impressed along oral border, strigose, subcarinate towards mouth. Prothorax as long as 
wide, its base truncate, with a raised margin external to a row of deep punctures, sides little rounded 
behind the middle, subconstricted in front, apex obtusely rounded ; disc glabrous, shining, its punctuation 
very coarse and variolose at the sides, sparser but not fine towards the middle, median line impunctate, 
RR 2 
