BY WILLIAM MACLEAY, JUN., E^y. 89 



Genus Macrothops. (nov. gen.) 



Antennce novem-articulatse breves articulo primo magno apice 

 incrassato valde setoso, secundo subgloboso, 3° — 6'^ brevibus 

 sub-patei^iformibus, 7° — 9° clavam formantibus. 



Lahrum ineonspicuum. 



Mandibulce inconspicuoe. 



Maxilloe lobis membranaceis ensafis barbatis lobo intei'uo 

 minore. 



Palpi MaxiUares graciles, valde elongati articulo secundo lon- 

 giore intus barbate. 



Palpi Lahlales breves articulo ultimo reliquis longiore subti'un- 

 cato. 



Labium membranaceum bilobatum liirsutum. 



Mentmn elongatum angustum extus convexum, valde setosum. 



Caput clypeo valde producto versus apicem carinato sub-reflexo. 



Corpus subdepressum hii-tum pygidio distincto. 



Pedes validi tibiis anticis extus tridentatis, femoribus posticis 

 subcrassis, tibiis tarsisque subelongatis. 



I have confined the name of Macrothops, (a name previously 

 given by Mr. MacLeay to the genus Phijllotocus) to this genus, 

 on account of its remarkably long filiform maxillary palpi ; these 

 and its very curious snout-like clypeus, distinguish it at once from 

 any other Austi-alian insect. In general aspect, and even in the 

 character of the maxillse, it seems to approach the South Ameri- 

 can group of GlapliyridcB, in particular the genus Dasychceta 

 Erichs. from Peru. In the form of the clypeus the genus 

 Macrothops approaches Anisomjx. 



Macrothops rostrata. (n. sp.) 



Nigra nitida, capite punctato hirsuto, thorace sub-punctato 

 hirto, elytris luridis nigro-marginatis nigro-hirtis punctis 

 setigeris, corpore subtus incano-piloso, antennis palpis 

 pedibusque anterioribus piceis. 



Long. 3| lin., lat. 1| lin. 



Hab. Kino- Georg-e's Sound. 



