AMERICAN COLEOPTERA. 287 



C. semisculpta Lee, was made a synonym of femorata by Crotch. It 

 is really the 9 of contigua. 



C. cuprascens Lee., is also peculiar in the structure of the clypeus^ 

 that portion being almost rectilinearly truncate, with a small notch at 

 middle. The anterior tibiae of % have a small and very acute tooth 

 near the tip. 



C. vulcanica Lee, and C. californica Lee, appear to be merely un- 

 usually developed 99 of C. trinervia Kby. 



- C. exesa Lee. — Male specimens now known to us show the anterior 

 tibiae to be simple and not serrate within, the apex scarcely broader than 

 the female. The femoral tooth is serrulate as in femorata. The mid- 

 dle tibiae are very distinctly arcuate in the male and very slightly so in 

 the female, the posterior are straight in both sexes. The last ventral 

 segment £ is triangularly emarginate, in the 9 broadly emarginate with 

 an acute angle each side. 



C. cribraria Mann., which has remained in our lists unknown is that 

 variety of femorata known as soror Lee 



GYASCITUS Lee. 

 The occurrence of a new species in the eastern portion of our fauna 

 has led to new study of our species with the following result: In 1868 

 (Trans. Am. Ent. Soe, ii. p. 15-4) I gave a synoptic table and called 

 attention to the existence of two series of species — the first with the 

 tarsi rather slender, especially the posterior, in which the first joint equals 

 very nearly the next two joints together and the entire tarsus as long as 

 the tibia — the second with short and broader tarsi, the first joint but 

 little longer than the second. 



The first series above indicated constitutes the genus Gyaseutus, while 

 the species of the second should be referred to Hippomelas. 



The species referred to Gyascutus may be distinguished in the follow- 

 ing manner : 



Epistoma broadly emarginate; species of robust faeies 2. 



Epistoma subtruncate ; species of slender faeies 4. 



2. — Elytra with subcostiform elevations ; thorax very unequally sculptured and 



with irregular smooth spaces planicosta Lee. 



Elytra without subcostiform elevations 3. 



3. — Thorax irregularly sculptured, with large smooth spaces, presternum in front 

 somewhat concave, color above and beneath green bronze, 



obliterates Lee. 



Thorax nearly equally sculptured with coarse punctures, without distinct 



callosities, presternum in front flat, color above and beneath reddish 



bronze earoliiiensis n. sp. 



4. — Thorax gradually narrowed in front, sides scarcely arcuate, the surface regu- 

 larly punctured CU Ileal US Horn. 



