1876.] 171 



a pitchy-black streak, and iii the latter a riuiall, round black spot ; apical areas 

 testaceous, their bases aud apices fuscous-black ; longitudinal nerves finely spotted 

 witli brownish-yellow. Thitfhs : 1st pair pule testaceous with a broad black ring 

 at the base, and another narrower one before the apex. 



9 . IJrown, finely reticulated with black. Ulyli-a : apices of the nerves of the 

 clavus, and gcuerally all the transverse nerves of the corium, white. 



Length, S , -h ? > 3 lines. 1. MiXTPS, Germ. 

 Sometimes the ? is almost identical with the ^ in colour and markings. 



I believe this to be tlic commonest of the three species at present 

 known in Britain, and at once to be distinguished from the otlier two 

 hy the characters on the head aud the bhxck elytra. 



9 • Croinn pale testaceous, somewhat dingy, with a lunate brown streak, its extremities 

 passing the inner margin of the ocelli, and enclosing four brown spots on the 

 anterior margin. Face : upper half brown, lower half black ; the former with 

 4-5 pale transverse streaks on each side, the latter with a narrow, longitudinal 

 central line, and the sides next the apex margined with testaceous. Clypeus 

 testaceous, base and a broad central streak black ; cavities, in which the pale an- 

 tenna? are set, black. Cheeks and lor<B pale testaceous. Elytra longer than the 

 abdomen, greyish or dingy testaceous. Clavus next the dorsal margin spotted 

 with dark brown, interrupted by the nerves. Corium : all the transverse and 

 portions of the longitudinal nerves white? ; area immediately below the basal 

 one, transverselj- reticulated with dark brown ; inner margin of some of the 

 uerves of the whitish ante-apical areas here and there spotted with dark brown. 

 Thighs : 1st pair yellow ; on the outside at the base two short, longitudinal, black 

 streaks aud a transverse half ring before the apex also black. Length 3 lines. 



2. COMMUTATUS, Yioh., ^= atomarlus, Kirsehb. 



As Germar had already described a species belonging to this 

 genua under tlie name of afomnriiis, and with which Kirschbauni's 

 species had UDtliing whatever to do, Fieber, in his Catalogue, proposed 

 for it the name I have above used. A. atomarius is a much larger 

 insect than A. commutatus, and Fieber refers Ilcydcni, Kirsehb., to 

 it. I only possess a single example, from which the foregoing de- 

 scription was made, which was named fi^r me by the lale Dr. J^'icbcr. 



Crown testaceous-grey, with a black slanting 7-8haped cliaracter on each sidd, its upper 

 edge margining the ocelli for a short distance ; near the base a small bi'own spot, 

 placed nearer to the eyes than the middle of the basal margin. Face testaceous, 

 with about eight broadish, l)la<-k, tmnsverse streaks on each side, the two on the 

 frons more or less comma-shaiied ; longitudinal, centml line aud the apex forming 

 a J_-shapcd testaceous character. Clieeks and lorm testaceous, tlio latter with 

 a small black spot nearly in the centre. Elytra longer tlian the abdomen, tes- 

 taceous. Clavus: apex dark brown, composed of confluent spots, margins of 

 tlie nerves finely spotted with dark brown, more or less interrupted in different 

 individuals ; apices of the nerv'es and a small spot above eaeh, white. Corittiii : 



