586 Coleoplerological Notices, V. 



Antennae in the female one-lialf as long as the body ; tlanks of the prothorax 

 simply punctate beneath, the prosttrnum much less coarsely punctate. 

 Black, the elytra and abdomen red, polished. Head coarsely, strongly 

 punctate, feebly impressed along the middle. Prothorax one-half longer 

 than wide, the sides broadly arcuate, more convergent and feebly consti'icted 

 near the base, the latter equal in widtli to the apex, both truncate ; disk 

 coarsely, deeply punctate, the punctures formirg transverse rugae which are 

 obsolete along the median line and gradually evanescent beneath. Scutellum 

 small, impiinctate, the horizontal posterior part not carinate and not longer 

 than wide. Elytra parallel, not quite twice as long as the prothorax, nearly 

 two and one-half times as long as wide, narrowly truncate at apex, impressed 

 and punctate nearly as in bicolor, but rather less densely. Length 8.5 mm. ; 

 width 2.0 nmi. Florida breTicornis n. sp. 



In bicolor the transverse area behind the buccal o|)ening is more 

 finely sculptured than in hrevicory}iii, and the transverse prosterual 

 constriction is very much deeper ; hrevicornis is slightly the smaller 

 of the two. 



TRACiilDIOlV Serv. 



The species of this genus may be known by the following charac- 

 ters : — 



Third joint of the hind tarsi not longer, and but seldom visibly wider than, 



the second ; elytra corrugated. 



Antennae more or less pale, the swollen apices of the pale joints black and 



abruptly more densely pubescent. 



Antennae entirely black toward apex ; elytra strongly narrowed from base 



to apex ; large species, the black hairs of the pronotum and legs with 



a strong cobalt-blue reflection '. annillatlini 



Antennse pale throughout, the apices of all the joints black ; elytra 

 parallel ; size s^maller, black ; the hairs without blue reflection ; hind 



tibiae moderately dilated and compressed atiripenne 



Antennae black throughout ; api^s of the joints feebly swollen but not 



more densely pubescent. 



Third joint of the hind tarsi scarcely shorter than the second ; posterior 



tibiae not distinctly modified ; elytra varying from black with a small 



fulvous spot behind the humeri to completely fulvous except at the 



basal margin COqiUlS 



Third joint small, very much shorter than the second ; posteiior tibiae 

 broader, strongly compressed ; elytra fulvous throughout except at 



base fiilvipenne 



Third joint of the hind tarsi distinctly longer and somewhat wider than the 

 second ; elytra not corrugated, parallel, each with three feeble and minutely 

 costuliform lines ; pronotal punctures in the male minute and dense but 

 becoming abruptly coarse in an apical band, the posterior transverse margin 

 of wliich is multisinuate ; in the female minute and dense throughout. 



ariuatiini 



