1918.] F. H. Gravely: Passalidae of tlie World. 15 



Comacupes masoni, Stoliczka. 



Cmnacupes masoni, Stoliczka, 1873, jip. 151-2. 



Comarii pex masoni, (Jravcly, 1914f, p. '207. pi. xi. figs. ■\-ia. 



One specimen from ;iii allilude of about 6oo ft. in the interior of Bedagei, Sumatra, 

 and three without k»cality label. They all re.semble the Suraatran .specimen referred to in 

 footnote 2 of p. 269 of my "Account of the Oriental Pas.salidae." Without further 

 specimens from the ]\LTlay Peninsula, however, it is impossible to .say whether the Malay 

 and Sumatra n races of the .species are di.stinct. Length 29-30 mm. 



Comacupes stoliczkae, Gravely. 



Comacnpes stoliczlac. liiii\cly. litlU, ji. 2(n>. jii. .\i, figs. 3-3a. 

 Two specimen.s from Djember, Be.soek, Java ; two from ilt. Marapu'- Borneo ; and two 

 without locality label. I\I. Babault has .sent a specimen 24-5 mm. long from Medan, 

 Sumatra, for identification. Length 23- 7-25-0 mm. 



Comacupes basalis (Smith). 



Passalus basalis, Smith, 18.52, p. 18, pi. i. fig. •'J. 



Five specimens from ]\Iindoro and other parts of the Philippine Islands. Length 



33- 7-36-3 nam. 



Comacupes cavicornis, Kaup. 



Aularocyclus cavicornis -)- laevicornis, Kaup, 1868ff, p. 6. 



Comacupes cavicornis, Kaup, 1871, p. 19. 



Comacupes cavicornis. Gravely, 1914c, pp. 204-205, pi. xi. figs. 1-26. 



Several specimens from Singapore, Java (Tjibodas, Telaga Bodas in tiaroet. Preanger) 

 and Borneo (Pontianak). Length 24-5-26-0 mm. 



These additional specimens show that the local races described in my " Account of the 

 Oriental Passalidae "' (pp. 204-206) are not constant, and must be treated as one. 



The species of Comacufes may be identified thus : — 



The mesosternuni stronglj- punctured all over ; the abdonunal 



sterna with at least a few hair-bearing punctures in fresh 



specimens .. .. .. .. .. .. .. -• 



The mesosternuni unpunctured except at the sides, the abdomen 



unpunctured and hairless .. .. .. C- loveicoUhi. K'orfrt. 



^ The lower margin of the overhanging portion of the central 



tubercle short, or ascending obliquely to meet the upper 



margin, which is always horizontal ; the tubercle usually 



truncate or concave anteriorly, not sharply pointed, narrower, 



keeled or rounded above . . . . . . . . . . • • 3. 



The lower margin of the overhanging portion of the central 



tubercle usually rather long, always horizontal, the anterior 



part of the upper margin descending obliquely to meet it in a 



more or less acute angle ; the upper surface usually more or 



less distinctly grooved longitudinally, or excavate .. .. -■ 4. 



■^{ 



