208 EMIL BRENDEL, M. D, 



two latter species being impunctate, the abdominal striae, which are 

 farther apart in those two species ; congener is much smaller, evenly 

 leather-colored and does not occur in the West. 



The gemmate appeai-ance of the eyes is caused after death by ex- 

 siccation. 



When I published the description of Decarthron cornutum and 

 Bryaxis inornata, I was ignorant as to their relations ; afterwards I 

 found them in loving unison. They both differ so much from their 

 supposed genera in every respect that I deemed it necessary to sepa- 

 rate them, though the antennae of D. cornutum, the male, show a faint 

 divide between the 4th and 5th joints, which are fairly ankylosed. 



AN€H\L,.4nTHRO]¥ n. g. 



Differing from Bryaxis by the elongate form of the body, the 

 sculpture of the head ( 9 ) having small, lateral fovese faintly con- 

 nected by an obsolete circumambient sulcus (in some entirely ob- 

 literated) similar to some Batrisus, no frontal fovea, globose pro- 

 thorax without any impression, or but faint indications hardly 

 discernible, the w-ant of discal elytral lines indicated by faint basal 

 impressions, and the % from Decarthi-on, by the elongate form, the 

 sculpture of the head, want of elytral discal lines and the % and $ 

 from both named genera by the joints of the antennae, the last being 

 fusiform as long as the four preceding. 



Respecting the mode of living, they differ from all Bryaxes by a 

 gregarious life with ants like Batrisus, which they resemble in some 

 respects. 



A. cornutum (Decarthron) % Breudel. 

 inornata {Bryaxis) f Brendel. 



My Bythiiius carinahm has tw'O claws and will be separated from 

 the genus Bythinus with a new name, if an established genus of a 

 foreign country does not apply. 



My Fustiger is in every respect an Articerus, and must be satisfied 

 with that name. 



Pytna Casey, is a true Tyrus, even in minutlis. 



Atinus is, in my opinion, a Chennium, which has, according to 

 Aub6, four palpal joints, like all the Psela{)hidae, and all are very 

 short and connate. This would perhaps include the new genus 

 Biotus Casey. 



Batrisus, when living, move their abdominal rings by stretching 

 and retraction not unlike the abdominal movements of the AVasps. 



