AMERICAN COLEOPTERA. 249 



PIESTTD.E. 



The genera and species of this subfamily now known in our fauna 

 may be recognized by the following tables : 



Abdomen broadly margined 2. 



Abdomen with lateral edge rounded, subcylindrical 3. 



Abdomen with lateral edge acute, feebly margined ELEUSIS. 



2.— Elytra striate and punctured SIAGONIUM. 



Elytra punctured not striate HYPOTELUS. 



3. — Tarsi five-jointed, body not costate 4. 



Tarsi three-jointed, prothorax and elytra costate GLYPTOMA. 



4. — Anterior coxae contiguous AHfC^US. 



Anterior coxae separated by the prolonged prosternum LISPINUS. 



SIAGOIVIIJIVI Kirby. 

 Rufo-testaceous, head and prothorax finely sparsely punctulate. 



1. aiuericaniiin. 



Black, head and prothorax not densely but strongly punctured. 



2. piinctatiim. 



These species inhabit the Atlantic States and have been described 



under the more recent generic name Prognatha Latr. 



EL.EUSIS Lap. 

 For the characters of the four species in our collection, see the 

 excellent remarks of Dr. Horn, Trans. Am. Ent. Soc. iii, 279, under 

 the genus Isomwus, which as he properly observes is a more recent 

 name. 



GL-YPTO.MA Er. 



For the differences between the two species of this genus, see the 

 remarks of Dr. -Horn, Trans. Am. Ent. Soc. iii, 332. 



AXC.KUS Fauvel. 

 This genus differs from Lispiints chiefly by the front coxae being 

 contiguous, and not separated by the prosternum. ft thus establishes, 

 as already observed by Dr. Sharp, an excellent transition to IJolotrochus 

 of the Osorii group of Oxytelini. 



Black, punctured 2. 



Rufo-testaceous, nearly smooth 1. riif'csceus. 



2. — More strongly and less closely punctured 2. proli.viiM. n. sp. 



More densely and finely punctured 3. califorilicus. 



1. A. riif'escen^i. Lispinus mfesc. Lee. New Sp Col. 59. 



Florida, Alabama, Louisiana. 



