132 DESCRIPTIONS OF NEW SPECIES. 



punctatis, interstitiis convexis vix conspicue punctulatis, stria scutel- 

 lari nulla ; subtus prosterno subrugoso, metasterno fortiter, abdomine 

 subtiliter parce punctato, tibiis anticis sensim dilatatis, 4-5 denticulatis. 

 Long. -10— -13. 



Lec. Class. Col. North America, 238. 



A common species in the Middle and Southern States, found 

 under bark of dead yellow pines. This genus seems to be related 

 to the European Phthora, but only the 10th and 11th joiuts of 

 the antennae are enlarged, forming a small club ; the epistoma is 

 very stout and very slightly prominent at the sides ; there is no 

 frontal suture ; the basal membrane of the labrum is exposed ; 

 the eyes are small, slightly transverse, and scarcely emarginated 

 by the sides of the epistoma. The epipleura? are rather broad, 

 and extend to the tip of the elytra. 



HELOPS Fabr. 



412. H. inipoSitus. Alatus, seneo-niger opacus, capite thoraceque 

 sat dense punctatis, hoc parum convexo latitudine breviore subquadrato, 

 lateribus antice rotundatis postice fere rectis, apice late emarginato, 

 angulis anticis vix rotundatis, basi truncata, tenuiter marginata, angulis 

 posticis rectis ; elytris oblongis thorace latioribns, lateribus fere paral- 

 lels, punctis elongatis seriebus 8 digestis, alteraque brevi subscutellari, 

 interstitiis parce punctulatis ; subtus subtil ius, propleuris rugose punc- 

 tatis, antennarum articulo ultimo prsecedenti a?quali. Long. "52. 



One specimen from Texas, in the collection of Mr. Hike. 

 Quite distinct by the characters given above. In form it re- 

 sembles H. undulatus, but in sculpture is very different. 



413. H. undulatus. Alatus, elongato-oblongus, nigro-seneus, seneo 

 viridique variegatus, capite confertim punctato, thorace latitudine 

 breviore, parum convexo, ad apicem paulo angustato, late emarginato, 

 lateribus late rotundatis, undulatis, tenuiter marginatis, angulis posticis 

 rectis, basi marginata, disco confertim punctato, ad basin utrinque sub- 

 foveato, ante basin transversim vage impresso ; elytris transversim con- 

 vexis, thorace paulo latioribus, lateribus parallelis fortiter marginatis, 

 striis profuudis subpunctatis, scutellari distincta, interstitiis planis 

 parce punctulatis ; antennis elongatis, gracilibus. Long. -46 — -53. 



Mas antennis corporis dimidio longiores, tarsis anterioribus articulis 1-3 



modice dilatatis, subtus spongiosis. 

 Femina antennis brevioribus, tarsis minus dilatatis. 



Middle and Southern States ; not rare. The side-pieces of the 

 prothorax are densely and coarsely punctured, and somewhat 





