54 Cs Ma EY von HAVES 
L. terrenus Germar, ?E. parviceps Schoenherr, E. crenatus Klug, L. turbidus 
Germar, E. murinus Linnaeus, F. vestitus Klug, L. mustellinus Germar, E. ivroratus 
Klug, A. crenicollis Ménétriés and also E. ovalis Germar. Thomson (1859 : 103) 
designated murinus Linnaeus as the type-species. This interpretation of Lacon was 
generally accepted until Hyslop (1921 : 652) drew attention to the fact that murinus 
was not originally included in the genus and designated E. atomarius Fabricius 
[=Lacon punctatus (Herbst) see p. 76] as the type-species of Lacon. 
Hyslop (1921 : 621) remarks that [as a result of his studies] the application of 
the names Adelocera and Lacon have been reversed but as he does not make it 
clear which species are to be included in each genus, I have accepted Fleutiaux’s 
1926 correction of the Schenkling catalogue as the date of publication of the new 
combinations. 
Golbach (1969) appears to have been unaware of Fleutiaux’s correction to the 
Schenkling catalogue as he records as new combinations many of the species 
previously transferred by Fleutiaux. 
NOTES ON THE GENERA AND SUBGENERA NEWLY PLACED IN SYNONYMY WITH 
Lacon. Ocneus Candéze was erected for a single Brazilian species, limbatus 
Candéze, in which antennal segments are strongly transverse, the antennal grooves 
shallow and the pronotum distinctly bituberculate. Examination of the type- 
material (p. 69) has shown that the antennal segments of the male are more strongly 
transverse than those of the female. This sexual dimorphism also occurs, though 
to a less marked degree, in punctatus Herbst, the type-species of Lacon. The other 
diagnostic characteristics of the genus are all of the variable type discussed above. 
Scelisus Candéze. Candéze considered this genus to be related to his interpre- 
tation of Corymbites. Examination of the type-material of the type-species, 
sanguineus Candéze (see p. 81) from Nepal has shown that this species possesses 
all the diagnostic characteristics of Lacon. The species differs from L. punctatus 
(Herbst) in that the antennal grooves do not extend beyond the mid point of the 
sternopleural sutures and the vestiture is setose and not scale-like. These charac- 
teristics also occur in L. vitalisi (Fleutiaux) from Laos, and the Madagascan 
L. madida (Candéze). 
Alaotypus Schwarz was erected for two species from Tonkin (subpectinatus 
Schwarz, aspersus Schwarz) in which the antennal grooves are shallow and do 
not extend beyond the middle of the sternopleural sutures. The length and depth 
of this groove is now known to vary from one species to another and are believed 
by the writer to be of no value at the generic level. 
Fleutiaux (1918 : 183) placed Alaotypus in synonymy with his interpretation of 
Adelocera (Adelocera sensu auctt., nec Latreille) but in his key (1941 : 48) to the 
Agrypnitae he treats it as a valid genus. The most recent workers, Ohira 
(19690 : 41) and Golbach (1969)-155) also treat Alaotypus as a valid genus, but the 
present writer does not consider the diagnostic characteristics to be of sufficient 
value to justify the retention of the genus. 
Sulcilacon Fleutiaux was established for three species from south-east Asia 
(sanguineus (Fleutiaux) = mausoni nom. n., spurcus (Candéze) and geographicus 
