26 HUTELIN'vE. 



constituted for three species, all of them peculiar to India, 

 which exhibit a remarkable combination of the characteristic 

 features of the ANOMALINI and ADOUETINI. Like Rhinyptia in 

 the former group and Oxyadoretus in the latter, they have the 

 head narrowed in front into a kind of snout, and for that reason 

 have been hitherto confused with Rhinyptia. 



The PAEASTASirs'i are sharply separated structurally from the 

 three preceding groups, the forms nearest allied to them being 

 inhabitants of Tropical America (Rutela, Cnemida, Pelidnota, etc.). 

 It is strange that the predominant, genus Parastasia is confined 

 to the Oriental Region, with the exception of a single species, 

 P. brevipes, Lee., which inhabits North America. That the 

 PABASTASIINI form the point of closest contact of the KUTELINVE 

 with the DYNAS'rrNjE, the great enlargement of the mandibles of 

 some of the males (Didrepanephorm, Fruhstorferia, etc.) and the 

 strange thoracic process of Peperonota are an interesting 

 indication. 



Finally, the PELTOXOTIM consist of only about half a do/en 

 Indian and Malayan species composing the aberrant genus Pelto- 

 notus, formerly grouped with the DYJ^ASTINJE, but having a 

 mouth-strucfure which is entirely peculiar to itself. Of the habits 

 of these we are profoundly ignorant. 



Key to the Divisions of the Subfamily Rutelinao. 



Labruin horizontal (not produced down- 

 wards). 



Labruin visible from above Peltonotini, p. 27. 



Labrum not visible from above.* 



Mandibles produced beyond the 



cl ypeus ." Parastasiini, p. 30. 



Mandibles entirely covered by the 



clypeue. 

 Antennae 9-jointed ; elytra with 



membranous margins Anomalini, p. 52. 



Antennae 10-jointed ; elytra with- 

 out membranous margins .... Adorrhinyptiini, p. 273. 

 Labrum produced downwards Adoretini, p. 276. 



* Except in certain males with hypertrophied mandibles (Bidrepanephorus 

 and Fnihstorferia). 



