478 
ZOOLOGICAL LITERATURE. 
I. Bruchidoi (see Selionlierr). II. Anthribid(B (see Sclion- 
Iicrr). III. AttelabidcB (see Jekel, Insecta Saund. I860). 
IV. Curculionidce Gonatoceri (Sclionli.) : RhynchophorideSj 
CossonideSj and Dryophthorides + Camarotus, IthyceruSy Ilham- 
phus, Tachygonus, and Episus (see Jekel^ L c.). V. Calandridce 
— Rhynchophorides (Schonh.) + Dryophthorides Oxyrhynchus, 
VI. (see Sclionherr). VII. (see Ericlison). 
VIII. Breuthidce (as witli Selionlierr -f Ulocer'us (Dalm.)^ sec 
Jekel, 1. c.). 
Thus the Ourcultonidce occupy the central position among these 
families^ the others leading hy insensible gradations on the one 
hand through the Bruchidce to the Chrysomelidcey and on the 
other through the Breuthidce to the Lotigicornia. 
In the great family Curculionidcey Jekel distinguishes certain 
aberrant types^ namely the Brachycerides, ByrsopsideSy and 
AmycterideSy which he considers may be united into a single 
group, characterized by the absence of a spongy sole on the 
tarsi. The true Curculionidi are, with few e^cceptions, Scopitarsi. 
Jekel divides them into the following primary groups i — 
1. Platygyni, in which thcjmale is smaller and narrower behind than the 
female and generally smaller in all its parts. This group includes nearly the 
whole of the Brachyrhynchi and Erirhinides of Schonherr, the whole of the 
Adelognathes of Lacordaire, minus the Brachyceridcs and a part of his Phanero- 
ynathes symnSrides. 
2. IsoGYNi, in which the males are sometimes a little smaller than the 
feaiales, hut are always of precisely the same form. The typical subfamily 
is that of the Lixides (= Cleonides, Lac .) } other groups are the Zophotides, 
Aterpides, BMnarideSy AlcidideSy Gonypterides, &c. 
3. hlETRiOGYNi, in which the males are never smaller, hut^often larger than 
the females. This group includes the greater part of the Apostasimerides 
(Schonh.) and some of his Erirhinides. The author divides them into Cryp- 
topyyes (^OrthorkinidaSy Chulides, CcntimideSj inch Byorymcridcs, Conotracho- 
lides, CryptorynchideSy &c.), and Gymnopyycs {MagdalinideSy BalaninideSy 
TychiideSy CionideSy CentorhynchideSy BaridideSy &c.). 
The Platygyni y to the consideration of which JekePs present 
paper is particularly devoted, are classified by him into — 1. Platy- 
gyni HOMORHiNi {=Curculioniniy ^Gu. Brachyrhmi) y and 2. Platy- 
gyni HETERORHiNi [=Rh]jnch(Bniy sen Mecorhini). 
Upon these groups and their constituent tribes and genera 
Jekel enters into considerable detail, with the special object of 
fixing the characters and position of the genera Phytonomus and 
ListrodereSy and discussing the characters of the species included 
in those genera. The nature of these remarks, which are in 
reality a summary of a long series of observations, renders it im- 
possible to do justice to them in any abstract ; indeed the whole 
paper is full of valuable notes to which the same statement ap- 
plies. Whilst doing full justice to the merits of the magnificent 
