DESCRIPTIONS OF NEW SPECIES. 29 



paulo brevioribus ; abdomine subtiliter punctato, segmento antepenulti- 

 mo nigricante. Long. -13. 



San Diego, California ; on the shores of the ocean. This 

 species resembles so closely the figure given by Duval of the 

 European P. nigrvventris, that it is scarcely necessary to add 

 anything to the above description, to enable it to be readily re- 

 cognized. The spines of the anterior tibiae are very small, and 

 not by any means conspicuous. The body beneath is finely and 

 densely punctured, and finely pubescent, and rather darker colored 

 than the upper surface. 



TACHYUSA Er. 



94. T. cavicollis. Valde elongata, picea, dense subtilissime punc- 

 tulata, pube subtili cinerea vestita, thoraee late (maris valde profunde) 

 canaliculate-, latitudine vix breviore, elytris margine apicali pallido, 

 abdomine segmentis anterioribus (1-3) constrictis ultimoque piceo-tes- 

 taceis, antennis fuscis basi testaceis ; pedibus flavo-testaceis. Long. *10. 



Middle, Southern, and Western States ; common. 



95. T. lligrella. Elongata, nigra nitida, tenuiter cinereo-pubescens, 

 subtilissime punctulata, tborace obsolete canaliculato, ante basin trans- 

 versim leviter foveato, latitudine paulo breviore, abdomine antice parum 

 angustato segmentis 1-3 transversim profunde iinpressis ; pedibus nigro- 

 piceis. Long. '12. 



Middle and Western States ; common. 



96. T. "baltifera. Minus elongata, nigro-picea nitida, subtiliter 

 punctulata, tenuiter pubescens, tborace elytris abdominisque segmentis 

 1-3 piceo-testaceis ; tborace postice canaliculato, ante basin transver- 

 sim impresso, latitudine paulo breviore ; abdomine basin versus paulo 

 angustato, articulis 1-3 profunde transversim impressis ; antennis pedi- 

 busque fusco-testaceis. Long. "10. 



One specimen, Coney Island, near New York. Less elongate 

 than the other species, with the fine punctures, especially <>f the 

 thorax, less dense and more distinct than in the two preceding 

 species. 



9Y. T. gracillima. Valde elongata, nigro-picea nitida, Bubtilitet 



pubescens, capite piceo subtilissime punctulato, thoraee latitudine vix 

 breviore, ante basin transversim impresso, sat dense punctulato, piceo- 



testaceo, elytris piceo-testaceis distincte punetulatis, abdomine articulis 



