The Scottish Naturalist 



345 



pygmsea 



Cyclonotum 



Sphaeridium 



Megasternum 



Cryptopleurum 



Cercyon 



orbiculare 



of e. strongly dil. R. -brown. H. pit. An., pal., 

 and legs, test. ^ 1. B. N . 



Second Family— SPH^ERIDIAD^. (5 genera) 



1. More than i^fl. A str. close to the sut. exists only in 



the hi. part of e. 

 Not more than l$£ L Sutural str. not as above. [An. 

 9 j. Sc. much shorter and narrower than cl. of an.] 



2. An. 9 j. Sc. shorter but (at ba.) wider than cl. of an. 



Very conv. strongly and unif. but not very closely 

 punc. ...... 



- only 8 j. Sc. narrower but not shorter than cl. of 

 an. ; not very conv. Finely and closely punc. e. 

 very obsc. str. . 



3. Outer edge of fr. tib. pretty regularly rounded off towards 



tit!). ••••••• 



with a large and consp. notch near ap. Space 



between mid. legs flat. .... 



4. E. deeply p. -s. with strongly conv. ints. Space between 



mid. legs flat. ..... 



Not as above. Space between mid. legs forming an 

 elev. ridge. ..... 



Cyclonotum, 



Shining b. Legs, pal. and an. r. or pit. 1^ 1. B. ! 



Sph^ridium. 



h. Ap. of e. broadly and consp. test. 



Unif. punc. B. Legs, and (often) some obsc. marks 

 near ba. and ap. of e., r. Side mars, of th. and of 

 e. more or less test. Hi. angs. of th. test. 2)/& 1. 



-[->• m a • • • • • • 



2. E. with some rows of puncs. larger than the rest. B. 

 Side mars, of th. and of e. (narrowly) ap. of e. (very 

 broadly) and the legs, test. A large spot near ba. 

 of e. (gen. ) r. Hi. angs. of th. ac. 2]/ 3 1. E. ! . bipustulatum 

 Very like prec. E. unif. punc. Colors gen. brighter. 

 Th. rectang. at ba. 3 1. E.S.I.!! , 



Cercyon. 



1. Ba. of th. without a consp. fov. in the centre . 



- - - with a consp. fov. in centre. Pit. b. Legs, ap. 

 of e. and (often) disc, of e., more or less r. E. 

 strongly p. -s. Ints. thickly punc. and conv. behind. 

 A wide conv. species with rounded sides ; narrowed 

 behind, if 1. E.S.I. ! 



2. Th. (across ba. ) depressed backw. and e. (across fr.) 



depressed forw. , so as to form a tr. furrow where 

 they meet. Rather broad conv., little contr. behind. 

 E. strongly p. -s. ; ints. thickly punc. , more or less 

 conv. behind. Pit. b. Pal., ba. of an., tar., and 



marginatum 



scarabaoides 



haemorrhoidale 



ap. 



of e., r. or test. \% 1. B 



hacmorrhoum 



