Australian Coleoptera. 223 



dimidiura (maris vix, feminse perspicue) brevioribus ; articulis 1° 

 ad oculum medium attingenti, 2" parvo, 3" cum 2° T"" tequanti, 

 4" quam 3"' parum breviori, 4"-10'' gradatim pauUo longioribus, 

 IP quam 9"* 10"" que conjuncti vix breviori ; articulis (basalibus 

 exceptis) ramos singulos graciles elongates ad apicem emitten- 

 tibus ; pi'onoto leviter transverso, ut caput punctulato, ante 

 scutellum longitudinaliter breviter carinato, inajquali (in discum 

 medium late leviter, utrinque prope carinam antescutellarem 

 oblique leviter, utrinque inter depressionem mediam communem 

 et marginem lateralem fovea parva rotundata, impresso), antice 

 vix angustato, lateriljus sat rectis, basi fortiter bisinuata, carinis 

 intramarginalibus et antica et postica brevibus ; elytris manifeste 

 striatis, interstitiis vix planis minus crebre sat fortiter punctu- 

 latis ; depressions juxta-suturali prosterni l;«vi nitida, postice 

 latiori, utrinque et postice linea continua marginata ; processu 

 intercoxali prosterni postice deflexo ; metasterni episternis angu- 

 stis parallelis. 



Maris antennarum articulis 3"-10" ramos graciles emitten- 

 tibus, 3'-6' ramis gradatim longioribus, 6'-10' ramis sat 

 sequalibus quam articulus duplo longioribus ; segmento ventrali 

 penultimo fovea rotundata parva profunda instructo, hac linea 

 elevata tenui circumcincta. 



Feminfe antennarum articulis 3" ad apicem intus fortiter 

 angulato, i^-lO" ramos emittentibus, his quam maris paullo 

 minus elongatis minus gracilibus. 



Long. 4 ]. Lat. li 1. 



This very large and tine Microrhagus is perhaps near Sahlbergi, 

 Mannerh., and impressicoUis, Bonv., on account of the presence of 

 a median fovea on the penultimate ventral segment as well as 

 its large size. In the present insect the fovea is unquestionably 

 sexual, but M. de Bonvouloir implies that in those species it is 

 not so. If he was in error in that opinion the error upsets the 

 value of his tabulation of the species of the genus. Disregarding 

 the ventral fovete this species seems to fall in M. de Bonvouloir's 

 tabulation near M. suturalis, Bonv. (an Australian species) 

 but to differ from it t/tter alia niulta by the strongly rugulose 

 puncturation of its head and its pectinate antennae. 



N. Queensland ; sent to me by Mr. Cowley. 



V^/ 



