394 



abrasion rather wide striae, containing oblong punctures, be- 

 come visible. With the rostrum in its canal (the usual posi- 

 tion of unset Gryptorhynchides) the highly-polished base of 

 head appears as a narrow rim touching the prothorax; with 

 the head set out but still attached to the body the polished 

 space disappears. 



The female differs from the male in having the two basal 

 segments of abdomen decidedly convex, the rostrum longer 

 and thinner, and with its clothing confined to the basal third. 



EXITHIUS. 



The following new species of this genus may, for the sake 

 of convenience, be divided into four groups based on the pre- 

 sence or absence of a scutellum or of femoral teeth. 



1. Scutellum distinct, femora dentate. 



2. Scutellum. indistinct or absent, femora dentate. 



3. Scutellum distinct, fem^ora edentate. 



4. Scutellum indistinct or absent, fem^ora edentate. 



The head when at rest has its base quite concealed, but 

 the basal punctures are often of use in distinguishing species. 

 The base is always evenly convex, but it is frequently marked 

 off from the front by a more or less distinct depression, fre- 

 quently with a trisinuate outline. With the head attached 

 to the body but extended in front of the usual **set" condi- 

 tion, the boundary line of the forehead is concealed under 

 the overlapping prothorax. 



Group 1. 



EXITHIUS BASIPENNIS, U. Sp. 



(S . Blackish-brown ; antennse and tarsi reddish. Densely 

 clothed with large soft scales, mostly fawn-coloured, but vary- 

 ing from white to sooty ; under-surface, legs, head, and base 

 of rostrum with less variegated scales. Prothorax with six 

 fascicles ; elytra with fascicles on third and fifth interstices. 



Head gently convex; with dense normally-concealed 

 punctures. Rostrum rather wide, sides distinctly incurved to 

 middle; with dense and rather coarse punctures concealed on 

 basal half. Scape inserted about two-fifths from apex of 

 rostrum. Prothorax lightly transverse ; with dense normally- 

 concealed punctures. Scutellum small and transverse, but dis- 

 tinct. Elytra at base not much wider than prothorax, sides 

 rounded, near apex strongly narrowed ; base with tubercles or 

 large elongated granules, and a few smaller ones on suture; 

 third and fifth interstices with feeble tubercular swellings 



