.] I.AMEU.IColiMA. 33 



circular, with strongly raised front margin ; thorax rather thickly ami 

 tim-ly j nurtured, the punctuation consisting of large and small punctures 

 intermingled ; elytra with fine and finely crenate striae, interstices flat, 

 rather finely but distinctly punctured in irregular rows, colour very 

 variable, lurid-testaceous with dark, more or less longitudinal, marking, 

 sometimes entirely black, and occasionally simply testaceous with the 

 striae dark ; between these two extremes every variety occurs ; legs black 

 with tarsi ferruginous, or pitchy, or sometimes entirely reddish. 

 L. 6-9 mm. 



Male with the spur of the anterior tibiae obtuse at apex and somewhat 

 inflexed ; in the female it is acuminate. 



In dung; generally distributed throughout the greater part of the kingdom, but 

 somewhat local in certain districts ; the black variety is rather uncommon. 



A. rufipes, L. (<-aj>itfitua, Pe G. ; Acrossus rnfipes, Mills.). Elongate, 

 oblong, subparallel, moderately convex, almost subcylindrical, pitchy 

 black, or pitchy reddish-brown, with the forehead and middle of thorax 

 often darker, and the front of head and sides of thorax lighter ; antennae 

 and palpi clear ferruginous or reddish-brown; head flat, very finely 

 punctured, semicircular in front with distinct raised margin ; thorax ex- 

 ceedingly finely punctured, almost smooth on disc, with larger punctures 

 at sides and anterior angles ; scutellum smooth ; elytra long, scarcely 

 dilated behind, with distinct, but rather feebly crenate striae, interstices 

 flat, extremely finely punctured ; under-side and legs reddish or reddish- 

 brown. L. 10-12 mm. 



Male with the metasternum slightly impressed in middle, and the 

 forehead even ; female with the frontal suture distinct, and with the 

 elypeus obsoletely raised in middle. 



In dung ; common and generally distributed throughout the kingdom. 



A. depressus, Kug. (nigripes, Gyll. ; atramentarius, Er. ; Acrossus 

 depressus, Muls.). Oblong oval, moderately convex, but somewhat 

 depressed on disc, shining black, unicolorous, or with the elytra bright 

 red ; head flat, finely punctured, semicircular in front, with distinct 

 raised margin, antennae black, palpi clear red ; thorax finely but dis- 

 tinctly punctured, the punctuation consisting of larger and smaller 

 punctures intermingled ; scutellum punctured at base ; elytra somewhat 

 dilated at sides, with finely crenate striae, interstices flat, comparatively 

 distinctly punctured ; legs black with tarsi ferruginous. L. 6-8 mm. 



Male with the forehead even, and the thorax larger and more finely 

 punctured than in female ; in the latter sex there is a trace of the 

 central frontal tubercle, which perhaps confirms Thomson's observations 

 regarding A. porcus (see page 2G). 



In dung; somewhat local, but widely distributed throughout the kingdom a far 

 north as the Orkney Inlands ; tho form with red elytra is the typical form, ami 

 a|i|>i-Mrs to In,- very rare us Briti.sh. 



VOL. IV. l 



