COLEOPTERA. 
233 
3. Leptaulax. Margin of clypeus with acute teeth, chiefly as continua- 
tions of the frontal ridges. 
B. With five joints in the club. 
4. Erionomus. Clypeus Avith an erect spine, its margin nearly straight. 
5. Eleurarius. Margin of clypeus curv’ately emarginate, wnth a strong 
projection aboA'e the margin of the labrum. 
G, Pentalohus. Margin of clypeus with four or five projecting spines. 
C. With six joints in the club. 
a. Clypeus symmetrical. 
7. MacroUnus. IMnrgin of clypeus straight, only projecting at the mar- 
gin of the labrum ; joints of club narroAv, first three .shorter, second .shortest. 
8. Mastocliilus. First three joints of club gradually abbreviated. 
9. Pharochiliis. AntennjB long, joints of club very short. 
/3. Margin of clypeus unsymmetrical. 
10. Eriocnemis. Margin of clypeus projecting more or less irregularly j 
labium with a central shield separated from the lateral lobes by a furrow. 
11. Accraius. Left half of liead more developed than the right j centre 
of labium coalescent with lateral lobes. 
(Western Hemisphere.) 
Subfamily 3. Prooulin;!?:. Prothorax disproportionately large. 
12. Proculus. Truncated end of mandibles bidenticulate. 
13. Proculejus. Lobes of joints of club shorter. 
Subfamily 4. Passalinje. Prothorax of normal size j the margin of the 
sides of the elytra never haiiy. 
14. Passahis. Club of the long antenna with three very short joints. 
(Genera not yet characterized : — 15. Oileus] 16. TJndulifer\ Vl.Sicpha-' 
7iocephahts] 18. Pseudacanthus ) 19. Phoroneus] 20. Pertmax] 21. JHichopus\ 
22. Spasalus.) 
(Subfamily 6. NELEINA3.) 
The species referred by Kaup to the above genera are the following ; — ■ 
Aidacocycliis (1. c. p. 4): P. ctjUndraceus (Perty) = (Hope), 
P. bihastatus (Perch.), P. hicemthatus (Gu^r.), P. edentulus (MTjeay)=c///m- 
draceus (Veich.) =fiircicomis (Boisd.), P. teres (Perch.), and 12 iieAV species, 
all from the Australian and Malayan regions. 
Solenocyclus (l.c. p. 10) : P. c.mratus (K\w^)-=manouJp, (Perch.). 
J^eptaulax {1. c. p. 11). African Species : P. parastictus (Imh.) = 
africanus (Perch.), P. morhillosus (King), P. Icevis (King), P. approxi- 
matus (King), P. quadrifrons (Perch.), and L. pmictipectus, sp. n., 1. c. p. 11. 
Asiatic Species : P. deidatus (Web.) = timoriensis (Perch.), P. hioolor 
(Fab.)=^/flrn«5 (111.) = (Hope); L. thorcyi, sp. n., 1. c, p. 13, and L. 
eschscholtzii, sp. n., 1. c. p. 14. 
Erionomus (l.c. p. IG) : P. planiceps (Pjsch. )=dasypleurus (Imh.). 
Pleurarius (1. c. iv. p. 1) : P. pilipcs, sp. n., Kaup, ibid., Sumatra. 
Pentalohus {1. c. p. 17) : P. palinii (Porch.), P, harhatus (Fab.), P. sa~ 
mgei (Perch.). 
MacroUnus Q. c. p. 18) : P. latipcnjiis (Perch.), P P. nicoharicus (Redt.) 
M. toeberi, sp. n., 1. c. p. 19, Philippines j M. duixenbodci, sp. n., ibid., Ce- 
lebes. 
Mastochikis (/. c, p. 19, and ivi p* 31) : P» polyphylhs (M'Leay) ^scxdm* 
