126 REPORT ON ZOOLOGY, MDCCCXLI1I. 



Belonoffnatka, Chaud. (Bull. Mosc. 1843, p. 383) differs, as the author very 

 correctly remarks, together with Nycteis (Beleoptents, Kl.) from the rest of 

 the Pericallidte, among which it is to be placed, iu having the claws dentate, 

 and it farther agrees with Nycteis in not presenting a tooth in the notch of 

 the mentum, and differs from it only in the labrum and mandibles being some- 

 what more elongated, and the elytra not having a terminal spine. B. jmstu- 

 lata, a small, new species from Madagascar. 



Pentlim, Chaudoir (Bull. Mosc. p. 3S7), belongs to the Ditomidse-group, of 

 which the author here gives the following summary : (1) Elytra free, (a) 

 Mentum with a strong tooth; Aristi's, Litomus, Odor/emus. (b] Mentum 

 simply notched ; Penthus. (2) Elytra connate, (a) Mentum without a tooth; 

 (a) Prothorax produced posteriorly ; Chilatomus. (/3) Prothorax cut short 

 posteriorly ; Pacfiycfiri's. (b) Mcutum toothed ; Mystroptents. As regards 

 Penthus, it appears to me that this new genus belongs to the second subdi- 

 vision, with connate elytra, and might there, from the form of the prothorax, 

 be placed next tvPachycarm, from which it is distinguished by the dilated ante- 

 rior tarsi of the male. Penthus tenebricosiis, from the neighbourhood of 

 Constantinople, is already described by Waltl. (Isis, 1838) as Ditomvs 

 tenebriuides. 



The Harpalidse-group follow next. 



Anisocnemus, Chaudoir (Bull. Mosc. p. 391), resembling Acittopits ; the 

 mentum without a tooth in the notch, the anterior tibiae somewhat dilated, 

 bluntly jagged on the external margin. A. new species, A. ralidus, Kl. from 

 Columbia. 



Trichopselaphus, Chaudoir (ib. p. 399), a well-marked new genus, ap- 

 proaching Paramecus, but without a tooth in the notch of the mcutum, the 

 terminal joint of the labial palpi oval, thickened, encircled with hairs. 

 T. subiridescens, from Brazil, a female ; the collection here (Berlin) possesses 

 also only a female of the same species, but a male of another species, with 

 much thickened posterior femora, armed beneath with a strong tooth, and 

 much curved posterior ; tibiae serratc-crenatcd internally, like the Hypliarpux, 

 Mac L. of Java ; the terminal joint of the maxillary palpi, which arc 

 deficient in the author's specimen, is formed like those of the labial palpi. 



Diapheromerus, Chaudoir (ib. p. 402), founded on Ilarp.melanarim, Dej.? 

 differs from Hctqxihts in the elongated first tarsal joint, the spongy covering 

 of the dilated tarsal joints, and the paraglossse longer than the tongue. 



Ctenomerus, Chaudoir (ib. p. 408), an Ofhonw-ioYw, with slightly dilated 

 anterior tarsi, the first joint of the anterior tarsi somewhat rounded inter- 

 nally, distinctly pectinate ; all with a pectim'form row of setse beneath. 

 Ct. crenulatus, new species, from Kordofan. 



Dicfifiims (Esch.), Manncrhcim (Bull. Mosc. p. 211), also an Ophonns- 

 form, including //////>. (lilatafus, and brunnevs, Dej., separated from the 



