1917.] 27 



Lacordaire established for the genus Bagovs and some few forms 

 supposed to be allied with it, a i,'roup he called Hijdruno)nidci<. This 

 <jjroup was distinguished according to him from other Erirhini by the 

 unlobed third joint of the tarsi. Nevertheless, a large portion of the 

 species he assigned to the Hydronomides have a quite definite lobation 

 of the tarsi, this being the case even in the genus Hydronomvs itself. 

 The group must therefore be abandoned or modified, and an examination 

 of the aedeagus has yielded such remarkable results as to show that 

 the group is a quite unnatural one, so that its division must be effected. 

 This is best accomplished, I believe, by retaining the separation from 

 the Erirhini of both of the component divisions of Lacordaire's group 

 Hydronomides, and placing one of the divisions in the Erirhini, the 

 other— the true Bagoini — going into that great and distinct phylum 

 of the Cnrcidionidae, the Lixidae. 



The name Hydronomides must be abandoned, as the genus 

 Hydronomus is a very exceptional one, and does not possess the character 

 with which Lacordaire associated the name. 



I may here remark that, though there can be no doubt as to the 

 complete severance of the Bagoini from the Pseudohagoini, the separ- 

 ation of the Pseudohagoini as a tribe distinct from Erirhini is not 

 beyond question. But the classification of the Erirhini is altogether 

 an extremely diilicult one, and I think the best course we can adopt at 

 present is to separate the Pseudohagoini as a tribe distinguished from 

 other Erirhini by what we may term the degradation of the tarsi : 

 but the group in other respects is extremely close to such Erirhini as 

 Dorytomits pectoraUs. 



The genera of Pseudohagoini may be thus tabulated : — 

 Tarsi not bilobed. 



Mentiim narrow Parahagous. 



Mentuni broad Pseudohagoiis. 



Tar.si bilobed. 



Prostenium impressed ^ hagous. 



Prosternum emarginate in front, but not inv^xiiSS,o6...Hydronomus. 



PsEUDOBAGOus, gen. n. 

 Mentum latvrni, transversum. Rostrum crassum, breve, a capite abrupte divisum, 

 scrohis rectis, superne omnino conspicuis. Metasternum elongdtn^i. Tarsi articulo 

 tertio ovali, haud lohato. 



Type: Bagous longulus Gyll. (South Africa). 

 Bagous longuhis has quite the facies of our European genus 

 Parahagous, though it is a more elongate insect. It appears to be very 



C 2 



