DESCRIPTIONS OF NEW SPECIES. 



guishes this from all other species of the genus ; it is more regu- 

 larly oval, and less convex than the others. 



L,ACCOPH1L,US LEACH. 



72. L,. gentilis. Elongato-ovalis, postice sensim magis attenuates, 

 testaceus nitidus, vix subtilissime punctulatus, thorace ad basin paulo 

 infuscato, elytris piceis, sutura antice rufescente, epipleuris, fascia 

 interrupta ad quadrantem, maculis duabus lateralibus apiceque testa- 

 ceis ; abdomine infuscato. Long. '14. 



Louisiana ; Mr. Wapler. This beautiful little species is very 

 distinct from all others found in our territory. The transverse 

 baud is situated about one-fourth from the base, and consists of 

 a triangular spot upon each elytron, wider towards the suture ; 

 the first marginal spot is a little before the middle, and the se- 

 cond about two-fifths from the tip, which, with the whole of the 

 lateral margin, is pale. 



HYDATICUS LEACH. 



73. H. p irons. Ovalis, modice convexus, rufo-piceus snbnitidus, ver- 

 sus latera pallidior, thorace subtilissime rugoso et punctulato, versus 

 basin utrinque punctis paucis linea digestis, elytris subtilissime punc- 

 tulatis, punctisque solitis fere obsoletis ; subtus niger, pedibus anteriori- 

 bus piceo-testaceis. Long. -50. 



Middle States and Canada. Broader and less regularly ellip- 

 tical than H. bimarginatus. The color above is reddish brown, 

 paler at the margins of the thorax, the sides of the elytra, and 

 in front of the eyes ; the organs of the mouth, the anterior and 

 middle legs are pale brown ; the trunk and abdomen beneath are 

 nearly black, and the hind legs are dark brown. 



GYRETES BRULL. 



74. G. compressus. Elongato-ovalis, valde convexus, niger nitidis- 

 simus, thoracis lateribus elytrorumque uiargine latiusculo punctulatis 

 pubescentibus, elytris apice oblique truncatis subsinuatis, angulo ex- 

 terno obtuso ; subtus niger, pedibus obscure piceo-rufis. Long. '25. 



Quincy, Illinois ; Mr. Willcox. Narrower than G. sinuatus, 

 and readily distinguished from all the other species of the genus 

 heretofore described, except the South American G. bidens, by 

 the inflexed margin of the thorax and elytra being black ; from 

 the last named species it differs by the outer apical of the elytra 

 not being acute and prolonged. 



