210 ON THE GENUS CERODATES. 



established on two characters — namely the long and 

 slender antennae clothed with delicate hairs , and the large 

 eyes occupying the greater part of the head — remarkably 

 variable in the different genera. Ephebocerus Schh. having 

 the anterior tibiae unnotched and being connected with. 

 Trachelizus by some central-americau species is united with 

 the Trachelizina; Jonthocerus Lac, which has the inner 

 edge of the anterior tibiae notched and toothed, and which 

 is allied to Cerobates , is placed in the Stereodermina. 

 The other genera of the Ephebocerides known at 

 present are : Hyperephanus Senna and Anchisteus Kolbe : 

 the first has been described by Prof. Sharp under the name 

 of Homceolizus and is placed in the Stereodermina, the 

 latter, having the anterior tibiae unnotched , must be united 

 with the Trachelizina. In consequence the Stereo- 

 dermina are represented by Stereodermus ha,c,, Stereobates 

 Sharp , Hyperephanus Senna {Homceolizus Sharp), Jonthocerus 

 Lac. and Cerobates Schh. In all these genera the anterior 

 tibiae are constantly more or less notched or toothed on 

 the inner edge , whilst the hind coxae , which are more 

 than usually distant from one another in the typical genus 

 Stereodermus Lac, are less widely separated in other genera ; 

 on the other hand the distance between these parts in the 

 Trachelizina is also diiferent , so that the only character 

 which satisfactorily distinguishes the two groups is the first 

 mentioned. 



The genera of the subfamily Stereo derminae ^) may 

 be differentiated as follows: 



1") Prof. Sharp (1. c.) calls this division «group", not „subfamily" as I do. 

 Id his arrangement, the family Brenthidae is divided into two subfamilies: 

 Brenthinae and Ulocerinae, corresponding to Lacordaire's tribes: Bren- 

 thides vrais and Uloce rides. As I retain Ulocerinae does not constitute 

 a subfamily opposite to Brenthinae in Sharp and Lacordaire's sense, but simply 

 a division of the same value as what is called group by these authors (see my note: 

 Revision des espèces du genre Ulocerus Dalra.). I call these groups „subfamilies" 

 as logical subdivisions of the family Brenthidae, and I indicate as groups the 

 successive subdivisions of subfamilies, thence f. i.: family Brenthidae, subfamily 

 Taphroderiuae, group Cyphagogi, group Taphroderi, etc. 



.N^otes from the Leyden IVIuseum , Vol. XVII. 



