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Show 1901.] ON N E W PHYTOPHAGOUS COLEOPTERA. 153 PLATE XIII. Postorbital region of Lemurs and Monkeys. ./k = frontal; _pa. = parietal; sq.= squamosal; ma. - malav ; as. =alisphenoid. Fig. 1. Propithecus edwardsi (Br. M . No. 75.1.29.6). 2. Cebus sp. inc., young (Br. M . No. 96.8.1.1). 3. Hylobates syndactylus (Br. M . No. 84.4.24.8). 4. Cebus sp. inc. (Br. M . No. 67.4.12.57). This is the only skull, out of 42 of Cebus, in which the parietal is separated from the malar by the union of the frontal with the alisphenoid. 5. Cercopithecus patas 3 (Br. M. No. 99.7.7.1). 6. Brachyteles arachnoides (Br. M . No. 43.10.12.2). 7. Brachyteles arachnoides (Br. M . No. 48.10.25.3), young (deciduous dentition). 8. Semnopithecus cristatus, very young (deciduous dentition). (R.. Coll. Surg. London, No. 102). 9. Bhinopithecus roxellance § (Br. M . No. 99.3.1.2). 10. Papio sp. inc., 3 young (tooth-change) (Br. M . No. 0.1.3.2). 7. Descriptions of some new Species of Phytophagous Coleoptera of the Family Chlamydce. By M A R T IN JACOBY, F.E.S. [Received February 11, 1901.] (Plate XIV.a) Amongst all the Phytophagous Coleoptera there is perhaps no group more difficult in regard to the description and determination of the species than the Chlamydce. A very large number of species, the majority of which have in common a similar arrangement in regard to their elytral sculpturing (often very complicated, ill-defined, and interrupted by larger or smaller tubercles), makes the descriptions extremely difficult to render so that other students can follow the arrangement; to make matters worse, all the published figures of the Chlamydce are, with but few exceptions, unrecognizable, and neither those of Klug nor Kollar give any clear idea of the true sculpturing of these insects. The figures published by Messrs. Godman and Salvin in their great work on Central America are the only reliable ones available. In the present paper I have tried to describe those species which I believe to be new to science, and which are represented in my collection, as clearly as I am able to; and I hope that the determination of some of the more important forms will be much assisted by the figures, the last three of which (Plate XIV. figs. 10-12) are those of species previously described. CHLAMYS LACORDAIREI, sp. n. (Plate XIV. fig. 8.) Flavous, the elytra darker, terminal joints of the antennae black; head and thorax finely reticulate, the former with one, the latter with several obscure fulvous spots, its posterior portion slightly raised bounded by a transverse ridge behind; elytra closely and stronglv punctured, with three ferruginous spots at the middle of 1 For explanation of the Plate, see p. 164. |