490 
ZOOLOGICAL LITERATURE. 
II. Maxillaiy palpi corneous, C3dindrical. 
A. Anterior coxae widely separated 3. Diupus, g. n. 
B. Anterior coxae contiguous. 
* Eyes oblong'-oval . 4. rc5sc/’t>cen<s(Saund.). 
t Eyes l»roadly reniforin. 
a. Sides of protliorax emarginate 5. Pe?'iommatus, g. n- 
b. Sides of pro thorax entire, sinuate . . , . C. Spathidicerus, g. n. 
X Eyes rotundate. 
a. Sides of protliorax emarginate 7. 3Iitoso)na, g. n. 
b. Sides of protliorax, entire, sinuate. 
1. Mentuui subcircular, transverse . . 8. Syimnerus, g. n. 
2. Mentuin oblong, narrowed towards base. 
9. Cenocep>haluSj g. n. 
Upon the geographical distribution of the group the author 
indicates that the only well-known European species is Platy- 
pus cylindrus, which occurs likewise in Algeria, Java, and Caro- 
lina. A second European species was discovered by Leon 
Dufour; but the third species. Platypus linearis (Pej.), belongs 
to the American genus Tesserocei'us ; and as only a single speci- 
men is in existence, there is room to belieye that its European 
habitat was a mistake. The chief home of the species seems to 
be tropical America, and next to this comes the Asiatic and 
Malasian region. It seems probable, however, that further re- 
searches in the latter countries, and in the tropical parts of 
Australia, will furnish a large number of new. forms of a group 
whose chief function in nature seems to be the rapid destruc- 
tion of woody vegetation. The number of speeies found in 
Africa is also very small. 
Xyloterus quercus (Eichli.) is the commonest species of Bostrichidee on the 
Illiine. Fuss, Berk enf. Zeita. 1866, p. 412. 
Pendroctomis pince (Scbauni, MS.) is enumerated by Erber among the 
enemies of Pinus halcpensis on the island of Lesina. Verb, zool.-bot. Ges. in 
Wien, Bd. xv. p. 945 bis. 
Cn/phalus tilicB (Fab.) is recorded as occurring in Britain by Power. Ent. 
M. Mag. i. p. 212. 
The natural history of Hylesinus trifolii (Miill.) is described by Taschen- 
berg. Naturg. wirbell. Thiere, pp. 272-273. 
Crossotarsus. Chapuis (/. c.) describes and figures the following known 
species as belonging to this genus : — Platypus ivallacei (Thoms.), p. 63, fig. 1 
J 2 ; P.-minax (Walker), p. 71, fig. 14 c? $ ; and P. externe-dentatus (L. 
Fairm.), p. 81, fig. 20 J . Platypus apicalis (White) belongs to this genus, 
see appendix, p. 337, 
Platypus. Ghapuis (/. c.) describes and figures the following known species 
of this genus as restricted by him : — (In group 4) Bostrichus Jiavicornis 
(Fab.), p. 154, fig. 70 cf $ j (in group 5) Platypus compositus (Say), p. 163, 
fig. 75 cf $ ; Bostrichus parallelus (Fab.)^ p. 164, fig. 76 cf $ J Platypus poeyi 
(Gu4r.), p. 208, fig. 117 S $ j and P. subcostatus (J. I)uv.), p. 210, fig. 118 
d $ ) (ia gi'oap 11) Bostrichus cylindrus (Fab.), p. 216, fig. 147 S $ ? (ia 
