28 C2. Ms By von HAYEK 
LECTOTYPE (present designation). INnp1IA: 3, Bengale; Collection E. Candéze; 
Lacon demissus Cdz., det E. Candéze [IRSNB curatorial label] (IRSNB, Brussels). 
Standing with the lectotype and paralectotype in the IRSNB are four specimens 
from the same locality, one of which bears Candéze’s yellow-bordered determination 
label. These four specimens differ from the description and lectotype in that the 
elytra are distinctly striate. All eight specimens are mounted on cards but have 
pin-holes in the right elytra showing that they have been remounted. Since the 
elytral puncturation is clearly visible with the naked eye it is improbable that 
Candéze included these four in his original series. I believe that Candéze’s 
determination label was replaced on the wrong specimen when the material 
was remounted. For this reason the general practice of designating the specimen 
bearing Candéze’s determination label has not been followed. 
Other material examined. InpD1IA: Chota Nagpur, 1 9, determined by Candéze 
(Candéze, 1890 and 1892¢ locality) (MNHN, Paris). 
Adelocera difficilis (Lewis) sp. rev., comb. n. 
Lacon difficilis Lewis, 1894 : 29. 
[Lacon trifasciatus Candéze; Candéze, 1873 : 1. Misidentification.] 
[Brachylacon microcephalus Motschulsky; Kishii, 1961 : 25, pl. 2, figs 9, 10. Misidentification.] 
LECTOTYPE (present designation). JAPAN: Sex undetermined, left hand of 
two specimens mounted on one card. 9.4.81 [on underside of card mount]; Japan, 
G. Lewis, 1910.320; Nagasaki, 13.ii-21.iv.81; Lacon difficilis Lewis, type [Lewis] 
(BMNH). 
Paralectotypes: I ex., on card beside lectotype. 490on one card, Nag. (on under- 
side of card mount); Japan, G. Lewis, 1910.320. Nagasaki, 13.11.—21.iv.81; Lacon 
difficilis Lewis [Lewis] (BMNH). 
Other material examined. JAPAN: Janson collection from Lewis, determined 
as trifasciatus by Candéze, 1 ex, (BMNH). This is probably part of the series 
misidentified by Candéze in 1873 and could be part of Lewis’ syntype series of 
difficilis. I have not examined Kishii’s material. The identification is based on 
the good figure of the aedeagus. 
Fleutiaux (1918d : 194) treated difficilis Lewis as a synonym of Lacon mucro- 
cephalus Motschulsky, but examination of the type-material of the two species 
has shown that he was mistaken. Up to the present time I have not seen any 
difficilis specimens from localities other than Japan, while microcephalus appears 
to be restricted to Ceylon (see p. 38). 
Kishii (1961 : 25), Miwa (1933 : 29, 1934 : 70, 85) and Ohira (1934 : 10, 1968 : 73, 
1969: 94 & 1969c: 28) have recorded microcephalus Motschulsky from Japan. 
It is probable that re-examination of the material will show it to be difficilis Lewis. 
Adelocera dilatatus (Fleutiaux) comb. rev. 
Lacon dilatatus Fleutiaux, 1903a@ : 572. 
Lacon dilatatus Fleutiaux; Fleutiaux, 19184 : 208. 
