Berichtigungen und Zusätze zum Catalogus Coleopterorum 
synonymicus et systematicus. 
1. Von Herrn @. R. Crotch. 
Ad Viola: 
p. 426. Haliplus impressus Fabr. Erichson has restored this 
name for /7. flavieollis; Sharp has recently (following Panzer) employed . 
it for Cnemidotus caesus. It was the only Haliplus Fabricius knew 
and as such represented the genus; ruficollis Deg., laminatus Schall., 
impressus Fabr. are as it seems to me mere synonyms and cannot be 
employed for separate species, 
p. 426. Hal. obliquus Fabr. The type (teste Schaum) and the 
description agree with Z/ydroporus versicolor (retieulatus F.). Hence 
it will be necessary to use Olivier’s name amoenus, which is quite 
certain. 
p. 434. Hydroporus granularıs L. (1767) — use minimus S Cop. 
(1763). | 
p. 437. Hydroporus nigrita F. — lege Ent. Syst. p. 201. 
p. 439. H. retieulatus Fabr. — lege versicolor Schall. Act. 
Hal. p. 313; Zaliplus obliquus Fabr. 1787 must be added as a 
synonym. 
p. 442. H. unistriatus Schrank. — lege G@oeze. Ent. Beytr. 
1. 1777. p. 626, but use parvuius Müll. Zool. Dan. Prodr. 1776. 
p. 73. 784. 
p. 443. Noterus semipunctatus F. — Use capricornis Herbst. 
1784, which certainly refers to this species. | 
p. 451. Ilybius ater || Degeer. — use guadrinotatus Steph. 
p. 451. ZZ. fenestratus F. — The description best applies to 
Tlybius obscurus, but as in the case of ZZaliplus, he has confused them 
all under one name.- Müller’s names should be received, as they would 
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