PANCHRESTUS. 



137 



punctate, impubcscent. Thorax broadly transverse, the upper sur- 

 face subcylindrical ; the anterior angles much depressed ; the surface 

 distinctly punctate, at the sides flavo-pubcscent. Scutellum trian- 

 gular, thickly pubescent. Elytra robust, broad ; on either side is an 

 antemedial transverse depression, which does not reach the suture ; 

 surface punctate, the punctures being less distinct at the apex and 

 arranged in the form of striae ; at the apex and sides flavo-pubescent. 

 Antenna? short, robust, broadly incrassated towards the apex; the 

 first joint is long, deflected outwards, and dilated at the extremity; 

 the second broad, short, ovate; the third and fourth slender, not 

 equal in length to the first ; the sixth to tenth broadly dilated ; the 

 first and second flavous, third to fifth flavo-testaceous, sixth to 

 eleventh black. Legs flavous. 



From the neighbourhood of Ega, River Amazon. In the collections 

 of Mr. Bates and the Rev. H. Clark. 



Genus 21. PANCHRESTUS*. 

 Palpi maxillaees cylindrici, robusti, haud attenuati. 

 Palpi labiales breves, ovaii. 



Antenna sat robustos, dilatatce, art. 2> tio et l" 10 aqualibus. 

 Caput breve, subproductum, plerumque verticals. 



Thorax Iransversus, interdum ad latera angulatus, plerumque punc- 

 tatus, ant granulatus. 



Elytra robusta, plernmque ante medium transverse depressa, pumtato- 

 striata, interdum obsolete pid>e vestita. 



Pedes: tibias posticce simplices, haud dente armatce, breves. 



Labrum narrow, more contracted than the base of the head, trans- 

 verse, and rounded at the margins. 



Maxillary palpi (Tab. V. fig. 5 m) elongate, but medially some- 

 what more dilated, and altogether shorter and more robust than in 

 the preceding genus ; the penultimate joint is almost as broad as 

 it is long, and the terminal joint broader at the base and less atte- 

 nuated than in tbe genus Leptotrichus. 



Labial palpi (Tab. V. fig. 5 n) short, ovate. 

 Antennas approximate, situated between and below the inner 

 margin of the eyes, sufficiently robust, medially dilated, not so broadly 

 as in the preceding genus ; the basal joint is long, dilated medially 

 and towards the apex; the second shorter and narrower, ovate, 

 transversely truncate at the apex; the third attenuated, longer 

 (slightly) than the first (in the preceding genus this joint is distinctly 



* nar, onmino; xp)]<jtos, bonus. 



