46 [Februiiry, 



Doscrilit'd from a sinc^le ( $ ) cxnHi])lo captured on Oct. 9tli, 1902, 

 by the Swedish South Polar Expedition. Darwin found anotlier on 

 Navarin Island, in 1832 or 1833. 



SlLPHID.^. 



MiCRAGYRTES, n. gCn. 



Head with two prominent ocelli ; eves finely facetted ; apical joint of the 

 maxillary palpi abruptly subulate, the narrow pointed apical portion very 

 short: mandibles acute at tip, sharply toothed towards the base within; 

 antennae 11-jointed, 1 and 2 stout, 8-10 strong-ly transverse, 8-11 dilated into 

 a stout club, 11 divided into two portions by a distinct suture, the apical por- 

 tion narrow ; elytra truncate posteriorly, incompletely covering the abdomen, 

 confusedly punctured ; anterior coxae contiguous, without visible trochantin, 

 the cavities widely open behind, closed by the raised edges of the two depres- 

 sions in front of the mesosternum ; mesothoracic episterna narrow, those of the 

 metasternum not visible, covered by the rather broad inflexed margin of the 

 elytra, which is rapidly narrowed posteriorly ; metasternum long, truncate 

 behind ; intermediate coxae narrowly separated ; posterior coxae contiguous, 

 the rather long trochanters placed on the same axis; abdomen rapidly nar- 

 rowed posteriorly, with five free ventral segments, 1-4 subequal in length, 

 6 narrow, triangular ; legs rather slender ; tibiae spinulose externally, the 

 spurs minute ; tarsi slender, 5-jointed, 4 simple ; body oblong, convex, 

 pubescent, winged. 



Tj^pe, M. oceUigems. 



The remarkable little Silphid from which the above characters are 

 taken has the general facies of an Agyrtes, except that the ehiira are not 

 striate- It has two conspicuous ocelli, which are present, but rudimentary, 

 in the t^'pe of the genus Pteroloma* P . forstroemi Gryll. ; open anterior 

 coxal cavities, truncate elytra, and five free ventral segments only, as in 

 SjpTiaerites ; and strongly clubbed antennae, as in Colon. The mouth- 

 parts are injured in the $ specimen dissected, and fuller particulars of 

 the oral organs cannot therefore be given. The possession of two ocelli 

 is so seldom to be seen in Coleoptera that it requires special notice. 



Micragyrtes ocelligerus, n. sp. 



Oblong, convex, shining, finely, sparsely pubescent ; nigi'o-piceous, the 

 ocelli, basal margin of the prothorax, basal and apical margins and suture of 

 the elytra, antennae, legs, and under surface testaceous, the antennal club and 

 metasternum slightly infuscate ; above rather coarsely, closely punctate, the 

 punctures separate one from another, the elytra obsoletely striate at the base, 



* A genus at one time referred to Carnbidae. The Mexican P. xallaei Matth., as stated by 

 Oanglbauer, has no trace of ocelli, and also difiers in other respects from the type, and it cannot 

 really belong to Pterolonui. The Japanese P. discicuUis Lewis should also be removed from the 

 genus. 



