58 ■ OTIORHYNCHID^. [Horn. 



Tribe II. oxiokhtxchi.m. 



Antennae long, scape always passing the eyes behind. Scrobes variable 

 but never at the same time linear and directed interiorly. Metasternal side 

 pieces usually entirely concealed by the elytra, rarely of moderate width. 

 Mesosternal epimera small. Elytral striae entire in all our genera, tenth or 

 marginal always distant from the preceding in its entire length. 



It is extremely difficult to give characters which define tribes of Rhyn- 

 chophora with any degree of certainty, and it is frequently found that a 

 species can only be assigned a position by the consideration of almost its 

 entire structure with considerable allowance for facies, and not a little, by 

 the experience of the student. 



Some of the genera placed in the OtiorhyncMni by Lacordaire, have been 

 removed and will constitute portions of tribes in Division ii, Avith wide 

 metasternal side pieces. 



Our genera form four groups which may be distinguished as follows : 

 Funicle 6-jointed ; articular surface of hind tibiae 

 enclosed, tips of hind tibite truncate with 



broad oval space A^^raplii. 



Funicle 7-jointed ; articular surface free, tips of 

 hind tibiae with a single row of fimbriae. 

 Claws free. 



Antennae long ; outer joints of funicle long. otiorhynchl. 



Antennae shorter; outer joints short or moni- 



liform Tracliyphlcel. 



Claws connate. 



Antennae as in OtiorhyncM Pcritcli. 



The Periteliaxe placed after the Otiorhyneliiiron\ Wxc'ir greater similarity 

 of form and structure, the only difference between the two tribes is found 

 in the claws. 



Group I. A§:rai>hi. 



Antenni>> moderate, scape longer than the funicle and club, moderately 

 arcuate ; funicle 6-jointed ; club broadly oval slightly flattened, composed 

 in great part of the first joint only, the other joints retracted and very in 

 distinct. Tarsi long, slender, third joint very feebly emarginate and 

 scarcely wider than the second. Hind tibiae truncate at tip with broad, 

 oval smooth space, cotyloid cavities internal. Anterior tibi« with outer 

 apical angle slightly prolonged ; anterior and middle tibiae with inner angle 

 mucronate. 



The above characters appear to w^arrant the separation of Agraplms as a 

 group by itself as suggested by Lacordaire who, however, failed to notice 

 the structure of the antennal club and placed the genus in a group in 

 which the hinder cotyloid cavities are open. These latter are really very 

 strongly cavernous, more so in fact than in any other genus in our fauna. 



Agraplms alone constitutes this group. 



