SYNOPTIC TABLES OF COLEOPTERA. 43. 



CYMINDIS, La*. 



By GEO. H. Horn. M. D. 



The species known in our fauna are not numerous but are with diffi- 

 culty separable in tabular form. The following table will assist the stu- 

 dent but must not be too strictly interpreted without reference to the des- 

 criptions. 



Thorax widely margined, the margin more or less translucent. 

 Interstitial spaces with confused punctures. 



Head and thorax similar in color to the elytra, the latter without distinct humeral 

 and lateral paler spaces. 

 Margin of thorax of moderate extent very little reflexed and scarcely translucent 



with many, usually three or more setigerous punctures laticolllS, Say. 



Margin of thorax while, translucent, distinctly reflexed with one or two setiger- 

 ous punctures crihricollis, L)ej. 



Head and thorax usually paler than the elytra, the latter with distinct humeral 

 spot and lateral margin paler, the surface in fully colored specimens some- 

 what metallic planipennis, Lee. 



Interstitial spaces with a single row of punctures elegailS, Lee. 



Thorax narrowly margined. 



Thorax distinctly broader than long, the margin wider than in the following species 



and with but one setigerous puncture at the side Ullicolor, Kirby. 



Thorax not wider than long, margin extremely narrow, sides with at least two setre. 

 Elytra rather flat, intervals densely and comparatively finely punctured and 



w ithout lustre americana, Dej. 



Elvira normally convex, intervals not densely punctured, the punctures often 

 coarse, surface shining. 

 Thorax equally punctured, the median line feebly impressed. 



Thorax very coarsely punctured, the punctures sub-confluent at the sides, mar- 

 gin rare, with translucent edge Critrata, Say. 



Thorax normally not confluently punctured, sides with distinct but narrow 

 translucent border. 

 Surface conspicuously pubescent, elytra never with humeral pale space. 



pilosa, Lee. 



Surface not conspicuously pubescent, elytra with pale humeral space. 



borealis, Lee. 



Thorax unequally punctured, median line deeply impressed, elytral interval with 

 one row of punctures Iieglecta, Hald. 



BIBLIOGRAPHY. 



laticollis, Say. Trans. Am. Phil. Soc. IV, 413; Lee. Ann. Lye. IV, 186., Chaud. Berl. 



Zeitsch. 1873. p. ^.=villigera, Chaud. loc.cit. p. 96. Tex. West.— 11 mm. 

 cribricollis, Dej. Spec. V, 311. Chaud. 1. c. p. c)-].=inarginata. Kirby. Faun. Bor. Am. 



IV, Ins. p. \i.=reflexa, Lee. Agass. Lake Sup. p. 20$.=a6sirttsa, Lee. Proc. Ac. 



1859. p. 82. N.Y. North. West. 10 mm. 



