414 MEMOIRS ON THE COLEOPTERA 



of Mr. Schaeffer in stating that this puncture is wanting. The 

 species must be regarded as the type of a separate genus near 

 Anisodactylus, for which I would propose ihe name Cephalogyna 

 (n. gen.). 



The name "celax " (1. c., p. 107) will be recognized of course as 

 a misprint for celox; it is given correctly in the index. 



EROTYLID^: 



If Mr. Blatchley will again examine his type of Tritoma dissimilis 

 from Florida (Can. Ent., 1917, p. 140), he can better decide as to 

 its relationship with Pseudischyms acuminatus Csy. (Mem. Col., 

 VII, 1916, p. 157), for it appears now, by an inspection ot his de- 

 scription, that the two are probably identical. 



HISTERIM; 



A few errors, which have become apparent since my last paper 

 (Mem. Col., VII), are corrected as follows: 



Platysoma (Cylistosoma) quadrifera Csy. (1. c., p. 202), is a syno- 

 nym of parallela Say. 



Saprinus discoidalis ssp. ampins Csy. (I.e., p. 258), is the true 

 discoidalis of LeConte. The former, as found at El Paso and in 

 New Mexico, resembles discoidalis in general form and size, but is 

 arways deep black, never having the metallic lustre of discoidalis 

 described originally from southern California, has rather stronger 

 sculpture, which however is almost similar in nature and distri- 

 bution, and more strongly angulate mandibles externally. The 

 pygidium is also more or less carinulate toward base along the me- 

 dian line, a character which is not suggested even vestigially in 

 either of my two examples of discoidalis (ampins Csy). This New 

 Mexican form may take the name Saprinus discoidalis ssp. lati- 

 formis nov., having as a synonym S. discoidalis Csy. nee Lee. 



The two species Saprinus repens and insolitus (1. c., pp. 262, 263) 

 belong to the genus Chelyoxenus of Hubbard, but differ from C. 

 xerobatis Hubb., in the form of the pygidium, among other features. 

 The peculiar and mutually very different pygidial modifications in 

 the two species first named above, have been made known in suf- 

 ficient detail under the original descriptions. In xerobatis, my two 

 specimens from Crescent City, differing considerably in size, have 



