46 Mr. Westwood's Synopsis of 



The following is a synopsis of the genera really belonging to the family, two 

 additional ones being introduced, which have been discovered since the publi- 

 cation of my monograph. 



Antenna quasi biarticulatae ; 



Caput thorace baud immersum, coUo distincto, ocellis nullis. 



Palpi labiales articulo ultimo elongato 1. Paussus. 



Palpi labiales articulis aqualibus 2. Platyrhopalus. 



Caput immersum, ocellis duobus . 3. Hylotorus. 



Antenna quasi 6-articulatae : 



Prothorax angulis anticis valde productis 4, Pentaplatarthrus. 



Prothorax transversus, angulis anticis rotundatis, posticis 



valde emarginatis 5. Lebioderus. 



Prothorax truncato-cordatus 6. Ceratoderus. 



Antenna quasi 10-articulatae 7- Cerapterus. 



Genus 1. Paussus, Linn. 



The species of this genus might be formed into subgenera from the varia- 

 tions in the formation of the club of the antennae, the joints of the maxillary 

 palpi, the form of the thorax and of the feet, the number of spurs to the tibiae, 

 and the geographical distribution. I shall, however, in this place divide them 

 only as heretofore into two primary groups from the form of the thorax. 



A. Thorax quasi bipartitus. 

 a. Antennarum clava posticfe baud excavata. 



Sp. 1. Paussus microcephaltis, Linn. [Linn. Trans, xvi. p. 631.] 



Africa ? 



Sp. 2. P. Jousselinii, Gu6r., Rev. Zool., No. 2. p. 21. Trans. Ent. Soc. ii. 

 p. 90. 



Near Rangoon. 



Sp. 3. P. Linncei, Westw. [Linn. Trans, xvi. p. 634.] 



Habitat unknown. 



Sp. 4. P. Burmeisteri, Westw., Trans. Ent. Soc. ii. p. 86. pi. 9. f. 3. 

 Cape of Good Hope. 



Sp. 5. P. rtifitarsis, Westw. [Linn. Trans, xvi. p. 638.] 

 Habitat unknown. 



