150 STAPUYLiNiD^. {Bulitocharina. 



B Intermediate coxje contiguous, 



a. Labial palpi 2-joiuted. 



a.* First joint of posterior tarsi elongate, 

 at least as long as the two following ; 

 labial palpi short, first joint thickened Placitsa, Er. 

 b. * First joint of posterior tarsi equal or 

 nearly equal to the following : labial 

 palpi rather long, first joint not 

 thickened, 

 a.f Ligula entire ; third joint of maxil- 

 lary palpi not or slightly dilated. 

 a. J Thorax slightly narrowed behind, 

 about as broad at apes as at base j 

 elytra square ; body depressed . Epit£DA, Retf. 

 b. J Thorax scarcely narrowed behind, 

 broader at base than at apex : 

 elytra transverse : body rather 



convex Silusa, ISr. 



b.f Ligula broad and triangular, bifid ; 

 third joint of maxillary palpi very 

 strongly dilated Actechabis, Janson. 



b. Labial palpi 3-jointed. 



a. * I ntermediatecoxsemore or less distant ; 

 insect winged, 

 a.-f- Lignla entire ; mesosternum not 

 carinate. 

 a. J Thorax wider than elytra, not 



narrowed behind Eurtusa, Er. 



b.J Thorax slightly narrower than 



elytra, narrowed behind . . . Leptusa, Kraatz. 

 b.t Ligula bifid ; mesosternum cari- 

 nate ; thorax plainly narrower tlhin 



elytra BoilTOCHABA, Mannh. 



b.* Intermediate coxse contiguous; in- 

 sect apterous Sip alia, Sey. 



2. Anterior and intermediate tibise armed with 



spines on their outer margins Phttosus, Curt. 



II. Labial palpi setiform ; hind body terminating in 



two styles; form fusiform (like a CowMrtts). . . . Myll^na, J&r. 



AUTAZiZA, Stephens. 



This geniis contains five European species and one or two from the 

 East Indies ; three are found in Britain ; they have somewhat the 

 appearance of Falagria, but are distinguished by having the thorax 

 strongly narrowed to a point in front, and by the large convex elytra 

 wliich are deeply furrowed at base ; the ligula of this genus is very 

 peculiar, being very long and furnished at the end with long spinous 

 processes ; with a little care it may easily be dissected out and forms a 

 beautiful microscopical object. 



The species occur in dung^ vegeTable refuse, decaying fungi, &c. 



I. Upper surface pitchy-red, with the head and apical 



portion of hind body black A. IMPKESSA, 01. 



