of the less-knoum groups of LamcUicorn Coleoptcra. 501 



^nh-ia.m\\j.—TROGINAE. 



I have said above that the only genus with any close 

 relationship to the well-known and widespread genus 

 Trox is Cryptogcnius, known only b}^ a single rare species. 

 That species, C. micrsianus, Westw., inhabits Colombia. 

 A second species is here described which has been found 

 in Brazil. 



Cnjptogenius Fryi, sp. n. 



Fusco-brunneus, hand nitidus, angustus, sat depressus, midique 

 grosse sat parce setosus ; capite rugoso ; prothorace crebre punctato, 

 lateribus valde rotundatis, serratis, post medium abrupte inflexis, 

 angulis posticis acutis, baseos medio obtuse angulato, elytris longi- 

 tudinaliter strigose vermiculato, tuberculis paucis seriatim instructis, 

 carina acuta integra laterali aliaque interna vestigiali antica, lateribus 

 obsolete serratis ; pedibus sat longis, femoribus anticis subtus fortiter 

 mucronatis, tibiis omnibus serratis. 



Long. 7'5 mm. Lat. max. 4 mm. 



Hah. Bkazil : Petropolis. 



A single specimen was found in October 1851, by the 

 late Alexander Fry. 



This species has nearly the same size and shape as 

 C. miersicmns, but is a little shorter relatively, not so dark 

 in colour (which may be only individual), and more finely 

 and closely sculptured. There is a slight coppery lustre 

 upon the femora and the front margin of the prothorax. 

 The most remai'kable feature is the very strong hooked 

 tooth situated at the middle of the lower edge of the front 

 femur and pointing outwards. The pronotum is very 

 coarsely and closely punctured, and has not tiie strong 

 oblique carinae of C miersianiis, and the elytra are entirely 

 covered with fine irregularly broken up longitudinal 

 striations. 



It will perhaps not be out of place to record here that 

 Trox trisulcatics, Curtis (Chili), of which the type is in the 

 British Museum, is the very common and widespread 

 species T. scaler, L. 



^nh-^amWy.—IDIOSTOMINAE. 



I formed this sub-family in 1904 for a single new genus 

 of which two species were described, both inhabitants of 



