BYRRHID.^; 63 



the expression "elevato-pulvinato," in describing the prothorax. 

 The species are evidently numerous and it is scarcely probable that 

 nitidus can be here redescribed under another name. 



Amphicyrta Erichs. 

 Eucyphus Mann. 



The body in this genus is notably large for the present family, 

 with the hind body inflated and the upper surface very convex and 

 glabrous. The head is moderately convex, arcuato-truncate at 

 apex, the edge sharply beaded, the labrum large, moderately trans- 

 verse, arcuato-truncate at tip and not or very feebly sinuate medi- 

 ally; it is joined at base to the front by an upwardly sloping band 

 of dense coriaceous structure. The mentum is moderate, the mandi- 

 bles bifid at tip and the apex of the fourth maxillary palpal joint is 

 obliquely truncate and also subbifid. The prosternal process is 

 beaded at the margins and its apex is rather acutely rounded, not 

 entirely filling the deep mesosternal fossa. The hypomera are 

 very broad, flat, parallel, separated anteriorly from the prosternum 

 by a very deep and gradually attenuate open fissure; the episterna 

 seem to be reduced to a thick margin at the inner posterior part of 

 the hypomera and are attained by the transverse coxae; the lateral 

 edge of the pronotum is moderately acute and continues to the 

 apical angles, which are not prolonged anteriorly. The metaster- 

 num between the middle and hind coxae is rather long and the 

 hind coxae are transverse, attaining the very small met-epimera 

 very near the sides of the body, the met-episterna only moderate 

 in width. The abdomen has all the sutures distinct and rectilinear 

 throughout the width and all the segments of subequal length. 

 The legs are rather long and heavy, the anterior tibiae with a 

 broad shallow and polished, gradually evanescent groove on the 

 anterior side externally and nearly attaining basal fourth, the other 

 tibiae with narrower external grooves for the partial shelter of the 

 retractile tarsi in repose; the tarsi are densely clothed beneath with 

 rather short, very pale hairs, the basal joint of the posterior longer 

 than the next two, the fourth very small as usual and the strongly 

 arcuate claws are slightly dilated and internally angulate at base. 

 The scutellum is well developed, ogival and a little longer than wide. 

 The antennae are very long, filiform and somewhat compressed; 



