NATURAL SCIENCES OF PHILADELPHIA. 21 



MELOLONTHIDES. 



A. Tarsal claws simple. 



B. Anterior coxas contiguous. Anomcea. 



Bb. Anterior coxte separated by the presternum. 



C. Elytra striate punctate. Euryscopa. 



Cb. Elytra irregularly punctate. Coscinoptera. 



Ao. Claws appendiculate. 



B. Anterior coxae contiguous. Babia. 



Bb. Anterior coxae separate. 



C. Elytra without epipleural lobes. Urodera. 



Cb. Elytra with large epipleural lobes. Saxinis. 



I have elsewhere exposed the reasons that induce me to adopt 

 Geoflfroy's name for the t3'pical genus of this subfamily, which 

 has at least tvventy years of priority. 



Anomcea, Lac. 



1. A. laticlavia (Forst., 1771), Lac. Mon., ii. p. 132, 2. 



Elongate, cylindrical, fulvous, obsoletely punctulate, subopaque ; 

 el^'tra and legs unicolorons or sulfused with black. L. .30-.32. 

 Middle and Southern States, Texas. 



Lacordaire (1. c. p. 137) has separated C. mutabilis on some 

 Texan and Mexican specimen with tlie thorax and a fascia across 

 the elytra black ; but I cannot see any structural differences. 



2. C. militaris, Lee. Pr. Acad. 1858, 83. 



Black, cylindric, pubescent beneath ; thorax unequal, sparsel}^ 

 punctate; el3'tra blue-green, with a large triangular humeral, and 

 a round subapical spot red, coarsely subseriate punctate. L. .18. 

 Texas (Leconte). Allied to the C. humerigei'a, Lac, which, hovv- 

 ever, wants the apical spot. 



Babia, Chev. 



1. B. biguttata (Olir., 1790), Lac. Mon., ii. p. 428, 5. 



Oblong, black, shining, elytra coarsely punctate striate, inter- 

 stices coarsely and sparsely punctate, each with a humeral and 

 subapical spot red. L. .14-.16. Southern States, Texas, Mexico. 



B. pulla, Lac. (1. c. p. 429) is a variety with the thorax very 

 finely punctulate. 



B. teb'aspilota.^ Lee. is a depauperated specimen from the Colo- 

 rado desert. 



