462 Mr. G. Lewis on new 



PJatysoma dufali, Mars.— I obtained a few examples of this 

 at Galle in November 1881, and record its occurrence in 

 Ceylon for the first time. 



Platysoma directum. 



Cylindricum, nigrum, nitidum, antennis pedibusque runs, fronte 

 parum concava, punctulata; pronoto punctato, stria laterali 

 Integra antice interrupta, pone oculos augulata, ante scutellurn 

 foveolato ; elytris striis 1-4 integris, 5-6 dimidiatis ; mesosterno 

 late sinuato, stria integra; propygidio pygidioque parce et grosse 

 punetatis. L. \\ mill. 



Hah. Para. 



The facies and sculpture of this species are close to those of 

 coarctatum, but it is as large again ; the forehead and clypeus 

 more deeply excavated ; the transverse line of thorax inter- 

 rupted ; the punctures throughout are much larger and the 

 apical sinuosity of the mesosternum relatively wider. 



Pachycrcerus nigro-cceruleus, n. sp. 



Oblongus, cylindricus, nigro-cseruleus, nitidus, punctulatus ; fronte 

 stria integra, pronoto undique punctulato ; elytrorum striis 1-4 

 dorsabbus integris, 5 dimidiata, 6 ante basin abbreviate ; propy- 

 gidio pygidioque dense punctulatis. L. 3 mill. 



TIab. Abyssinia (Raffray). 



In form and sculpture this species is closely allied to 

 Bajfrayi. The differences are in size (3 millim. instead of 6) 

 and the colour ; the 5th stria only reaches the middle of the 

 elytron and the 6th does not attain to the base. 



Baconia, n. gen. 



Corpus depressum. Caput retractile, parvum ; mandibulis parvi- 

 bus et a^qualibus ; fronte subexcavata, stria circulari. Antennae 

 sub frontis margine insertaa, clava ovali. Pronotum transversum 

 latum, marginatum, elytris 3- vel4-striatis. Prosternum. parum 

 angustatum, bistriatum, basi emargiuatum, lobo antico transverso 

 et latissimo. Mesosternum latissimum antice rectum. Tibia? 

 extus unidentata? vel inermes. 



The antenna has articles 3 to 8 nearly equal, the second is 

 as long again as the third, and the club is composed of three 

 articles equal in size. 



The name of this genus, which may be placed before 

 ,P/telister, will associate it with the name of the Elizabethan 

 philosopher. 



