COPROPHAGOUS LAMELLICORNS. 39 



and the elytra very faintly punctured ; in a few cases the punc- 

 tures are indiscernible. Apex of anterior tibiie bent inwards at 

 extremity and dilated, the teeth being slightly deflexed and ser- 

 rated ; the apical tooth rounded at extremity, not pointed. Meso- 

 notum rather thickly punctured with very fine punctures, and 

 with an obsolete longitudinal furrow, in some cases smooth, 

 slightly concave or depressed towards posterior extremity. L. c. 

 10 to i2 lines. 



Westwood described iojMs as follows : — " Ater, nitidus, laevis ; 

 clypei dentibus intermediis, duobus obtusis subelevatis, capite 

 antice punctatissimo ; thorace Itevissimo ; elytris punctis non- 

 nuUis minutissimis, irregularibus, striisque sex longitudinalibus 

 simplicibus fere obliteratis. L. c. 10 lines." 



hipjnas, Westw. — The description of hipjnas is as follows : — 

 " Niger, nitidus, capite sub lente tenuissime punctato ; clypeo 

 cornubus duobus intermediis porrectis ; prouoto fere Isevi, ely- 

 trisque subl^evibus et minus nitidis, singulo striis sex vix dis- 

 cernendis ; tibiis anticis baud in medio angulatis, extus 4-den- 

 tatis et serrulatis, metasterno antice producto et convexo-promi- 

 nulo. L. c. 8 lin." Distinguished from adamastor by its less 

 dilated form, as well as by the above-mentioned characters. 



I confess that I fail to perceive any distinction between 

 adamastor and iopas ; a specimen in the Hope Coll. is labelled 

 adamastor, but is only a trifle larger than those labelled iopas, 

 and does not differ in any other particulars. Hippias is certainly 

 a smaller and rounder insect than either of the two preceding 

 species, with its form more convex. Lacordaire's figure of 

 adamastor is evidently taken from Westwood's figure of iop)as. 



NOTES ON THE ATEUCHID^. 



In my paper on the above genus (Entom. xxvii. 257) I stated 

 that no species of the genus had been found upon the island of 

 Madagascar. Since then, on looking through the Nat. Hist, de 

 Madagascar Ins. Col., I find that D'Herculais has figured a 

 species (pi. 17, f. 1), which is named radama. No description is 

 as yet given, but the species does not seem to be identical 

 with any of the East African examples. It is of a shining 

 fuscous-brown colour, and sparingly punctured. 



Herr Eeitter (Verb. Vereines. Brunn, xxxi. pp. 160-163) gives 

 the following as the synonymy of the Palaearctic species : — Sacer, 

 Linn.= typhou, Finch. = carbiatus, Gehl.^ europcem, Mots. = acwii- 

 collis, Mots. =^ affiiiis, Brulle = retusus, Brulle. Pins, 111.= in- 

 firmus, Fisch. = monaclms, Fald. =^ digitatus, Mots. Pimcticollis = 

 armeniacus, Mem. ^= Jajpocrita, Jye].-^ parumpunctatus, Klug. 



The genus Mnematidium was founded by Eitsema in 1889 for 

 the name Octodnn, Lnnsberge,* but Eeitter u^es Bedel's name 



* See the S_ynonymy (Entom. xxvii. 314). 



