250 



Mr. G. Lewis 



Hah. Borneo : Kuehing, Savawalc. 



Tins species also belongs to the Crossotnrsi snbdepressi, and 

 only differs from C. fracpnentus in size and in the elytra 

 being less excised at the apex (fig. 2). 



Fi". 1 



Fiir. 



Fig-. 1. — Crossotarsus frmjmenius, sp. u. 

 F^ig. 2. — Crossotarsus fractus, sp. n. 



XXXIII. — On nciv Species o/Histeridse and Notices of others. 

 By G. Lewis, F.L.S. 



The last paper on this family by me was published in July 

 1911 ; the present is the thirty-eighth of the series. 



In all the papers, when referring to the genera TnjparKsus 

 and Trypeticiis I have wrongly assigned the masculine forms 

 to the female and the female to the male. Marseul and 

 other writers have committed the same error. In 1853, when 

 Marseul first began the study of the group he descril)ed the 

 sexes as species, and although warned by Monsieur A, Salle, 

 who had seen the insects in their natural habitat, he was not 

 convinced of the truth of the matter. 



The doubt having arisen as to the sexes of Tri/pancBus and 

 its ally Tnjjieticus, specimens were sent to Dr. Sharp for his 

 opinion, and he, having dissected them, reported that the 

 sexes have hitherto been reversed bv dcscribers. In order to 



