83- 

 SYNOPTIC TABLES OF COLEOPTERA- 



ANISODACTYLUS, Dg. 



Dr. Horn in Trans. Am. Phil. Soc. Nov. 5, 1880, published an ex- 

 tensive review of the Anisodactylus, from which we give the following ex- 

 tract, refering the student to the Doctor's complete treatise. 



A. Terminal spur of anterior tibia© trifid. 



a. Posterior tarsi slightly flattened, shorter than the tibia?, the first joint very little long- 

 er than the second. Plairy species. Elytra striate, intervals biseriately punctate, 

 dorsal puncture not distinct. (Dichirus.) 

 Thorax very distinctly narrowed behind, the sides arcuate. 



Hind angles of thorax obtuse. Intervals of elytra very irregularly biseriately 

 punctulate. Middle tarsi $ not pubescent beneath. 

 Posterior and middle tibiae $ coarsely tuberculate externally. Sides of thorax 



beneath impunctate 1, streHUUS, Horn. 



Tibiae spinulose externally. Thorax beneath punctate .... 2. dilstatllS. Dei- 

 Hind angles of thorax distinct. Intervals of elytra very regularly and 

 closely bistriately punctulate. Middle tarsi ^ with joints 2 — 4 pubescent 

 beneath. 

 Spurs of hind tibiae slender and acute. 



Hairs of surface short and erect. Thorax beneath with few obsolete coarse 



punctures 3. obtuSUS, Fee. 



Hairs of surface long and scarcely erect. Thorax beneath with numerous 



coarse and deep punctures 4. piiosilS n. sp. 



Spurs of hind tibite short, broad and dilated at tip JJ, immaniS n. sp. 



Hind angles of thorax sharply rectangular g, brUMieUS Dei. 



Thorax scarcely narrower at base, sides feebly arcuate, hind angles obtuse, Cly- 

 peus with one setigerous puncture on each side. Middle tarsi rf' pubescent be- 

 neath. Feebly pubescent 7. Biceus, Menet 



//. Posterior tarsi slender, as long as the tibiae, the first joint nearly as long as the next 

 two together, Glabrous species. Elytra striate, intervals impunctuate, a dis- 

 tinct dorsal puncture. (Tripleclrus.) 

 Clypeus with one setigerous puncture on each side, presternum at middle smooth. 

 not pubescent. 

 Surface shining. 



Surface with metallic luster, aeneous, legs and antenna: pale. 3. harpaloides Ferte 



Surface black, shining, legs black 9. dtilcicolli" Ferte.- 



Surface opaque, very distinctly alutaceous. 



Form elongate parallel, thorax not narrowed in front, widest near the middle. 



10. opaculus, Fee. 

 Form more or less oval, thorax narrowed from base to apex, widest at base. 



U, rusticus, Say. 



Bull. Brooklyn, Ent. Soc. Feb. 1881. 



