120 RHYNCHOPHORA. 
Abdomen uniformly rounded from base to apex ; joints of the funiculus cirrate, 
at leastin the male . . . ©. . 6 ee we ew ee Camptocert. 
Anterior tibie produced at the upper apical angle into a bifid process, at the 
base of which the upper border is furnished with a single tooth . . . . . Bothrosterni. 
Subgroup I. SCOLYTI. 
Scolytides vrais [s. str.], Lacordaire, Gen. Col. vii. p. 385. 
This subgroup has been usually regarded as a distinct group on account of the 
reflexed abdomen; but no very high value can be set on a character which is found 
sporadically in several non-American genera among the Platypodides (Crossotarsus, 3 ), 
the Hylesinides (Pachycotes, Sharp), and the Tomicides (Xyloctonus and Scolytogenes). 
And even within the limits of the genus Scolytus it is variable ; while in the European 
S. geoffroyt, Goeze, it is so well-marked that the abdomen is actually concave behind 
the first segment, in smaller species, as S. rugulosus, Ratz., which have no abdominal 
armature, the abdomen is nearly as regular in its curvature as in Camptocerus. The 
elytra are usually not declivous in the Scolyti, but in a Central-American genus, 
Scolytopsis, they are distinctly, though not strongly, declivous behind. 
In the Scolyti the middle and hinder tibie are thickened towards the apex, the 
upper apical angle is prolonged into a short straight mucro, before which is a small 
tooth; the whole approximating to the tibial structure in the Bothrosterni. 
The Scolyti comprise two genera :— 
Elytra impressed within the apical margin and not declivous, their lateral margins 
entire; abdomen flexed upwards from the base of the second segment. . . . Scolytus. 
Elytra gently declivous behind, their lateral margins deeply excised over the side- 
pieces of the metasternum ; abdomen flexed upwards from the base of the third 
segment 2 ee et tt et + Seolytopsis. 
SCOLYTUS. 
Scolytus, Geoffroy, Hist. Ins. envir. Paris, i. p. 809 (1762); Chapuis, Syn. Scol. p. 53 (Mém. Soc. 
Liége, 1873, p. 261) *. . 
Eccoptogaster, Herbst, Die Kafer, v. p. 124 (1793). 
Coptogaster, Illiger, Mag. fiir Ins. vi. p. 321 (1807). 
The genus Scolytus contains a large number of species described from Europe, Asia, 
the Malay Archipelago, Japan, North Africa, and North, Central, and South America. 
At present but four are known from our region, of which one is new. 
* Chapuis’s “Synopsis des Scolytides” was published as a separatum in 1869, but the volume of the 
‘ Mémoires de la Société royale de Liége’ containing it was delayed till 1873, owing to the death of M. Lacordaire, 
the secretary. There are thus two issues, with separate dates and pagination. The pagination given in 
Gemmfnger and Von Harold’s ‘Catalogus Coleopterorum’ has no existence, and was no doubt that of the 
projected volume of the ‘ Mémoires’ for 1869. 
