COLEOPTERA. 
^35 
distinct from Sc. r/if/ns (Linn.) ; the latter he identifies with IleliocoprisiskUs 
(Ijat.). For Olivier’s species Bates proposes the name of Jleliocopris colossus 
{1. c. p. 88). 
Bates also remarks upon the following species (/. c. pp. 90-91) ; — Vlianmis 
chalcomelas (Perty), which he thinks is not a South-Brazilian but solely an 
Amazonian species ] P. lautus (M‘Lcay)j P. hilaris (M'Leay); and P. silemis 
(Oast.)^ in the descriptions of which he indicates errors. 
Kiesenwetter refers to Harold’s assertion that Caccohius histei'oides 
(Mendtr.) is distinct from Onth. niqdlus (111.), and explains the reason of his 
having maintained the opposite opinion (Ool. Ilefte, iv. p. 93). 
Ateuchus saccr. Westwood briefly notices the habits of this beetle, as ob- 
served by him at Cannes. Proc. Ent. Soc. Loud. 18G8, p. xxv. 
Harold (Col. Ilefte, iv. p. 104) alters the names of the following species on 
account of their names being preoccupied : — Ateuchus cicatricosiis (Boh.) to 
hohemani, Cojiris sexdcntatus (Redt.) to smpedon, Onthophagus discolor (Klug) 
to hnpurus, O. minutus (Motsch.) to projuissus, and Prcpanocerus setosus 
(Boh.) to sinicus. 
E. VON Harold has published a monograph of the American genus Canthon 
(Berl. ent. Zeitschr. 1808, pp. 1-144), in which he includes Ccdoscelis 
(Reiche). Of this genus Harold describes 97 species, 46 of which are new. 
He also indicates 23 species which have been referred to Canthon by various 
authors, but which are unknown to him. Some of these he regards as pro- 
bably belonging to other genera. 
Harold (Col. Hefte, iii. pp. 33-37) discusses the comparative 
characters of certain genera allied to Chmridium^ especially 
Uroxys (Westw.), the separation of which from Chccridium he 
regards as best established by the form of the suture between the 
meso- and metasternum, this being straight in the former genus, 
whilst in the latter the metasternum forms an acute angle in 
front 'which is received into the mesosternum. Coptodactyla 
(Burm.) is a true Clioeridium. Of the genera admitted by Harold 
in his group Choeridides (see ^ Record,’ 1 867, p. 250) he gives 
the following tabular synopsis (/. c. pp. 54, 55) : — 
I. Corpus plus miuusvo hirsutum, abdominis segnieiita connexa. 
A. Tars, postic. articulus primus sequenti longit. peqiialis vel brevior. 
rEDARIDIUJr. 
B. Art. iste sequent! multo longior. 
a. Pygidium contractum, epipleura medio ampliata. 
Trichillum, g. n. 
h. Pygidium rectum, epipleura non ampliata. . Apiiengiujl 
II. Corpus glabrum, segmenta abdominalia libera. 
A. Tibifc posticto transvcr.sim carinatro Scatimus. 
B. Tibifc posticfo absque carinis trausversis. 
a. Mesosternum magnum, a metasterno sutura angulata dlvisum, oculi 
majores TJroxys. 
h. Mesosternum breve, metasterni sutura recta vel subarcuata, oculi 
minuti. 
* Caput triangulare, tarsi antici nulli .... IlELTORHiNUAt, 
t Caput seniicirculare, tarsi non doficientes, 
