234 Mr. F. P. Pascoe on Additions to 



amplis. Processus intercoxalis truucatus. Corpus squamosum, 



setosum. 



The absence of ocular lobes and the greater length of the 

 scape are the principal characters differentiating this genus 

 from Perperus. The elytra, also, are not vertically declivous 

 behind ; and the eyes are round or nearly so and away from 

 the prothorax, not contiguous to, or, in some cases, partly 

 covered by the ocular lobes. The corbels of the posterior tibia3, 

 so far as I can make out from gummed specimens, are pre- 

 cisely as in Perperus. 



Ocynoma antennata. 



0. fusco-castanea, squamis griseis fuscisque, setulis longis inter- 

 jectis, subtus sparse argenteo-squamosa ; capitc rostroque griseo- 

 squamosis, hoc in medio carinulato, apice vage setuloso ; aiitennis 

 ferrugineis, parcius niveo-pilosis ; funiculo articulo basali longiore 

 caeteris gradatim bre%-ioribus ; prothorace vittis tribus fuscis valde 

 indeterminatis notato ; elytris anguste cordatis, seriatim puuctatis ; 

 dorso utrinque vitta determinata fusca notatis ; pedibus ferrugi- 

 neis, tibus tarsisque pallidioribus. Long, lf-2 lin. 



Hah. Swan River. 



Ocynoma cordipeiinis. 

 0. fusca, squamis silaceis, setulis breviusculis interjectis, subtus 

 sejunctim albido-squamosa ; rostro longiore, minus tenuato, baud 

 carinidato ; antennis minus elongatis; prothorace longitudine vix 

 latiore, vage nigro-punctato ; elytris cordatis, tenuiter striatis, 

 singulis linea paUida, in medio interrupta, indeterminata, notatis ; 

 pedibus scjuamosis, tibiis tarsisque ferrugineis. Long. 2 lin. 



Ilah. Swan River. 



Decienus. 

 Rostrum modice robustum, breviusculum ; scrobes flexuosae, postice 

 leviter impressge, oculos attingentes. Oculi rotundati. Senpus 

 medium oculi vix superaus ; funiculus articulis quinque ultimis 

 breviter obconicis, subgequalibus. ProiJiorax lobis oeularibus ob- 

 soletis. Elytra subcordata, postice leviter decHvia. Pedes antici 

 majusculi, elongati : tihice anticae apice calcaratse, posticae corbeUis 

 apertis. Cseteris ut in Perpero. 



From its appearance I had originally placed the species 

 described below with Prosayleus ; but an examination of the 

 mouth shows that it is phanerognathous, and is in many 

 respects similar to Perperus^ although from its open posterior 

 corbels it is probable that Lacordaire would have found 

 another place for it. It is a dark, somewhat spider-like looking 

 insect, with a few indistinct greyish stripes ; in the female, 



