78 Ci M. F. von HAYEK 
Why Fabricius listed the references to murinus under atomarius remains a mystery. 
He lists the same two references under murinus in the main body of the work (1792 : 
221) though with a different, obviously erroneous, page number [22 instead of 28] 
for the 1767 publication. Why he re-named pulverulentus Panzer is also unknown. 
Arnett (1953 : 6) suggests that Fabricius did so because he was aware that pulveru- 
lentus Panzer was a homonym of Elater pulverulentus Herbst, 1786 [= Chalco- 
lepidius porcatus (Linnaeus)|. This explanation is unacceptable as Fabricius does 
not refer to E. pulverulentus Herbst in any of his works and was probably unaware 
of its existence. A more probable explanation is that he had already named a 
specimen, and intended to publish the description of, Elater pulverulentus from 
‘America meridionali’ in the Sehestedt collection. The description of this species, 
which does not appear in the Schenkling catalogue, was published in 1801 (see 
L. laticollis (Candéze) p. 68). 
With the exception of a few workers who used the name carbonarius Schrank, the 
name atomarius Fabricius appears to have been generally accepted for this distinctive 
species until Seidlitz (1888 : 68) corrected the synonymy. 
Lacon pyrsolepis (LeConte) comb. rev. 
Adeloceva pyrsolepis LeConte, 1866 : 389. 
Lacon pyrsolepis (LeConte) Fleutiaux, 1926 : 93. 
Diphyaulon pyrsolepis (LeConte) Arnett, 1969 : II. 
Holotype. U.S.A.: g, N.M.; Adelocera pyrsolepis Lec. [Ulke] (CM, Pittsburgh, 
Ulke collection). 
The published locality is New Mexico. The specimen agrees so well with the 
description that despite the absence of LeConte’s determination label I have no 
hesitation in accepting it as the holotype. 
Lacon quadrinodatus Lewis 
Lacon quadrinodatus Lewis, 1894 : 28. 
Lacon (Kobulacon) quadrinodatus Lewis; Chaijo & Ohira, 1965 : 2. 
Holotype. JAPAN: 9, Yuyama Chio 1883 [sic, on underside of card mount]; 
Japan, G. Lewis 1910.320; Yuyama [sic]; Lacon 4-nodatus Lewis, type [Lewis]; 
G. Lacon ex Adelocera [? Fleut.] (BMNH). 
The published locality is Oyayama. 
Lacon querceus (Herbst) comb. rev. 
Elater quercea Herbst, 1784 : 113; pl. 27, fig. 11. 
Elatey quercinus Gmelin, 1890 : 1912. [Unjustified emendation. ] 
Elatey varius Olivier, 1790: no. 31, p. 32; no. 31, pl. 3, fig. 26, pl. 7, fig. 68. 
Adeloceva quercus Seidlitz, 1872 : 110. [Unjustified emendation.] 
Adelocera queyca Reitter, 1911 : 213. [Unjustified emendation.] 
Lacon quercea (Herbst) Fleutiaux, 1926 : 94. 
Zalepia quercea (Herbst) Arnett, 1959 : II. 
