COLEOPTERA. 
245 
Sp. : O. satjittarius (Smith) ; 0. r.rposifus, sp. n., Kaup, 1. c. p. 4, P Mexico ; O. 
klingelhoffcri, sp. n., Kaup, 1. c. p. 5, Mexico ; O. guatemalensis, sp. n., Kaup, 
1. c. p. C, Guatemala. 
Undulifer, p. 0. Margin of clvpeus produced into three flat arches, of which 
the middle is slightly prominent; base of horn deeply furrowed; surface of 
head wrinkled and uneven. Sp. U. incisus (Truqui). 
Stephanocephalus, p. 7. Olypeal margin reflexed, with three even emar- 
ginations and four vertical spines ; tibiae unusually short, ant. tibiae very 
narrow. Sp. S. hostilis (Perch.) ; S. stellarisj sp. n., Kaup, 1. c. p. 8, Mexico. 
Pseudacanthus, p. 9. Like the preceding, but with no terminal projection 
to the frontal ridges, w^ich coalesce with the middle teeth of the clypeus, 
these, with the marginal spines, being directed forwards. The frons falls 
away much more abruptl y and is much shorter than in Stephanocephalus. 
Sp. P. mexicanus and astescus (Truq.), P. agnoscendus (Perch.). 
Phoroneus (Passalus, Burm. sect. 13 & 14), p. 10. Olypeal margin more or 
less projecting, and with a simple spine in the middle, or more or less 
distinctly emarginate, with two teeth ; middle tibiae exhibiting more spines 
than in any allied genus ; punctuation very distinct, especially on the sides 
of the elytra. Sp. : P. denticollk (p. 11), lunaris (p. 12), ohtusidens (p. 14), 
rugifrons (p. 15), pcrpicxus (p. 10), imxilloides (p. 19), spp. n., Kaup, 1. c. 
Brazil ; spirifer, rusticm, hinominatus, mnilleiy abortivus, punctatostriatus, cajor 
(sic ; Perch.) ; quadricoUis, glaherrimus (h]sch.) ; erosus (Truq.). 
Pixtinax (=Burm. sect. 15), p. 21. The three joints below club of ant. 
with short toothlets ; clypeal margin straight, unusually broad, with a 
tubercle at each end above the margins of the labrum ; frontal ridges ending 
in a knob, far removed from the clypeal spine ; anterior tibiae with one or two 
longitudinal costae on the underside. Sp. : P. convexus (l)alm.) ; pcHyi 
(Kaup) ; mono, latifrons^ longulus, marginatus (Perch.) ; gihhosus, mancus 
(Bunn.) ; iau, sp. n., Kaup, 1. c. p. 20, Columbia. 
Ptichopus, p. 27. Allied to Pertinax, but with more curved niandibles, 
which are simple instead of tridentate at the apex, and with broader anterior 
tibiae, which are transversely plicated on the underside. Sp. P. angulatus 
(Perch.). 
Spasalus, ibid. Pertinax with a 6-jointed club to the antennae ; clypeal 
margin slightly emarginate in the middle, with two small projections at the 
ends. Contains small, convex species, with distinct punctuation in deep fur- 
rows. Sp. S. rohmtus (Perch.), crenatus (M‘L.). 
Subfamily 5. Neleinje. Prothorax of normal size ; niandibles distinctly 
tridentate at apex ; shoulders of elytra and their outer lateral ridges more or 
less set with hairs. In this group Kaup includes part of M'Leay’s Paxillus 
{jpentaphyllm, Beaur., and leachi, M‘L.), and four new genera, viz. : — 
Neleus (=Burm. sect. 8), p. 30. Clypeal margin slightly arched, with 4 
teeth, of which the middle are approximated ; frons broad, short, abruptly 
sloped, thickly punctured. Sp. : N. interruptus (Linn. ) ; nmcornis, pimctiger 
(Serv.) ; conifer, striolatus, punctatissimus, mterstialis (Esch.) ; labor ator, sp. n., 
Kaup, /. c. p. 32, Brazil. 
Nelcides ( = Burm. sect. 10), p. 33. Less flat than Neleus, which it re- 
sembles. Clypeal margin not toothed in the middle, but with a shallow 
emargination at most ; frontal ridges commencing from point of horn. Sp. : 
N. affinis, geometriciis, incertus, angulifer (Perch.) ; multispinosus, sp. n., Kaup, 
/ c. p. 34, Columbia ; punctulutus, sp. n., Kaup, 1. c. p. 35, Panama. 
