450 Mr. Curtis's Descriptions of 



larly punctured, with 5 regular and several indistinct punctured striae : claws ochreous : 

 underside of head and pectus clothed with long silky whitish hairs ; abdomen and the 

 exposed pygidium densely covered with short hairs of the same colour, but forming a 

 little recurved brush at the apex. 



This seems to be a rare species at Valparaiso ; for the collection contained 

 only 3 specimens of the same sex, and they are probably males. The peculiar 

 green colour of the upper side and legs contrasted with the whitish underside, 

 and the lock of hair combed over the scutel, at once characterize this pretty 

 species. Rather than encumber science with names when it can be avoided, 

 I have adopted the appellation assigned to this genus by Dejean in his Cata- 

 logue; at least I imagine such to be the case. I regret that, having no dupli- 

 cate to dissect, I cannot give more detailed generic characters. 



*80. Gewates barbatus, Kirby, Trans. Linn. Soc. vol. xii. p. 403. pi. 21. f. 8. 

 A female from Rio Janeiro. 



*81. Leucothyreus ? spurius, Curt. 

 Sine nitore fulvus, capite thoraceque minute punctulatis ; hujus angulis pos- 



ticis acutis, elytris singulis paribus 4 Striarum inconspicuarum notatis. 

 Length 8£ lines, breadth 5. 



Entirely fulvous, excepting the black eyes : clypeus rounded and reflexed, with a line across 

 the base : thorax narrowed before, with the angles appearing lobed, the hinder angu- 

 lated ; scutel punctured : elytra dull, broadest beyond the middle, indistinotly punctured, 

 with a sutural stria and 4 obscure double ones on each : inosculation of the tibiae piceous, 

 anterior tridentate, the teeth piceous, 2 upper ones small ; 4 anterior tarsi very much 

 dilated and pubescent, forming brushes beneath : the joints cordate in the 1st pair. 



I received this male insect from Brazil, and although it forms no part of 

 Capt. Kings collection, its interesting form will be sufficient excuse for my 

 introducing it here. It so greatly resembles Geniates barbatus, mas, that 

 until they ate compared their differences would not be suspected ; nevertheless, 

 its beardless mouth and dilated intermediate tarsi separate it from that genus 

 and connect it with Leucothyreus; the other differences are, its fulvous head, 

 angulated thorax, broader and duller elytra, and more slender tibiae ; but the 

 4 posterior tibiae and likewise the claws exactly agree with Geniates. The 

 female I have not seen. 



