468 



Mr. Gilbert J. Arrow's Classification of 



the antenna is composed of three long and two short 

 lamellfB. The prothorax is rather long, without lateral 

 puncturation, and the median groove is obsolete. The 

 elytra are very broad behind, the shoulders rather promin- 

 ent and not hairy, and the apical angles rather acute. 

 The striie are very feebly punctured at the sides. 



Index to the Passalidse referred to in the foregoing paper. 



Aurikulus patalis, Lewis, 446 

 Basilianus cantori, Perch., 445 

 Geratocupes fronticornis, West. 



= bihastatus, Perch, 444 

 Chilomazus horealis, sp. n., 467 

 Comacupes pimctrfrons, Hojie, 



444 

 Coniger ridiculus, Kuw., 448 

 Cylindrocaulus, systematic posi- 

 tion, 446 

 G. hicems, Fairm., 446 

 G.felderi, Stol. 447 

 Didymus and Eumelosomiis, 462 

 D. caridfex, Kuw., 462 

 D. congoensis, sp. n., 463 

 D. crassus, sp. n., 465 

 D. curvilineatus, sji. n., 462 

 D. haroldi, Kuw., 463 

 D. hhigi, Kaup, 462 

 D. Igevis, Klug, 464 

 D. Icevisternus, sp. n., 463 



D. ruwenzoricus, sp. n., 464 

 Epiphoroneus, gen. nov. for Pass. 



occipitalis, Eschs. (= tetrago- 

 nus, Hope, and quadrifrons, 

 Perch.), 445, 460 

 Erionomus pilosus, Auriv., 460 



E. platypleura, sjj. n., 461 

 Erioptems, syn. of Erionomus, 



460 

 E. alterego, Kuw., 460 

 E. latericrinitus, Kuw., 460 

 E. planiceps, Eschs., 460 

 Eumelosomus affinis, sp. n., 465 

 Eumelosoinus Ixvipectus, Auriv., 



syn. oi E.afncanus, Perch., 445 

 E. sansibaricus, Har., 466 

 Eumelus nasutus, s,j>. n., 459 

 Oonatas navicidator, Perch., 445 

 Heliscus tropicus. Perch. — suh- 



cornutus, Hope, 444 



Kaupiolus, fiightlessness, 447 

 Leptaulacides glaber, Kirsch, 466 

 L. pidchellus, sp. n., 466 

 Leptaulacides vicinus, Perch., 



distinct from L. planus, HI., 



445 

 Morosophus riilii, Kuw., distinct 



from EpipJioroncus occipitalis, 



Eschs. (tetragonus, Hope), 445 

 Nasoprocidus heros, Truq., 447 

 Neleides punctatostriatus. Perch ., 



449 

 N. antillarum, sp. n., 452 

 N. guatemalensis, Kaup., 452 

 Oileus riinator, Truq. = Sagit- 

 tarius, auctt. = munihis, Casey, 



448 

 Oileus = Bimor = Bimoricus, 447 

 Ogyges Isevior, Kaup, 450 

 0. leevior, Kuw. (nee Kaup) = 



Proculejus championi, Bates, 



Biol. Centr. Amer. (2), p. 5, 



450 

 0. leevissimus, Kaup, 450 

 0. sargi,l^a.u'p = }wnestus, Kuw., 



449 

 Passalus interrupttis, L., 451 

 P. Sagittarius, Smith, 447, 448 

 P. tlascala, Perch., 451 

 P. unicornis, Serv., 451 

 Puxillus parvus, Casey, syn. of 



P. leachi, Macl., 443 

 Pentalobus palinii, Perch., 445 

 Pertinacides affinis. Perch., 451 

 Pctreju^s archidonse, s^i. n., 456 

 P. henrici, Rosmini, 456 

 P. peruvianus, sp. n., 456 

 P. spinosus, sp. n., 457 

 Pharochilus cancrus. Perch., 



syn. of P. dilcttatus, Dalm. 



445 



