British Species of Ilomalota. 93 



of this g-enus^ notably from Messieurs Crotch, Power, 

 Rye, and Waterhouse : while M. Ch. Brisout de Barneville 

 has, by the loan of his types of species recently described 

 by him, rendered me an assistance for which I return 

 him my most sincere thanks : from Messieurs Scriba, 

 Fauvel, Thomson, and others, I have also received 

 important communications, and specimens ; and I most 

 cordially thank my friend Mr. G. R. Crotch, of Cam- 

 bridge, for the zealous assistance he has been able and 

 willing to render me, by means of his extensive relations 

 with European Coleopterists. 



I adopt, then, eight sections. 



A. Abdomen parallel ; thoeax quadeate (about as 



BROAD AS long) ; THE SIX PENULTIMATE JOINTS OP 

 THE ANTENNiE LONGER THAN BROAD, OR NEARLY AS 

 LONG AS BROAD. 



(Contains groups I. — V. Species 1 — 35) . 



B. Abdomen parallel; thorax quadrate, or subquad- 



RATE ; SIX PENULTIMATE JOINTS OF THE ANTENNA 

 TRANSVERSE, BUT NOT VERY STRONGLY SO. 



(Croups VI. and VII. Species 36 — 54) . 



C. Abdomen parallel; thorax quadrate, or subquad- 



RATE ; six PENULTIMATE JOINTS OF THE ANTENNAE 

 STRONGLY TRANSVERSE. 



(Groups VIII. and IX. Species 55—63) . 



D. Abdomen parallel ; thorax moderately transverse, 



ITS SIDES evenly ROUNDED. 



(Groups X.— XII. Species 64—78) . 



E. Abdomen parallel ; thorax distinctly or strongly 



TRANSVERSE ; PENULTIMATE JOINTS OJ" THE ANTENNiG 

 NOT, OR BUT MODERATELY, TRANSVERSE. 



(Groups XIII.— XV. Species 79—107) . 



F. Abdomen parallel ; thorax strongly transverse ; 



PENULTIMATE JOINTS OP THE ANTENNA STRONGLY 

 TRANSVERSE. 



(Groups XVI and XVII. Species 108—122) . 



G. Abdomen a little narrowed to the apex ; the hind- 



er ANGLES OP THE THORAX WELL MARKED : LIVE IN 



ANTS NESTS. 



(Group XVIII. Species 123—125) . 



