70 STUDY OF NATURAL HISTORY. 



European Hemiptera is unquestionably that of 

 Wolff*, published in fasciculi or parts ; but we know 

 not, with certainty, hoAv many have appeared. Wolff 

 adopts the Fabrician system ; and both in his de- 

 scriptions and figures he is very superior to the 

 generality of Iconographers. In the same year, 

 Schellenbergf, a painter of Zurich, figured many 

 insects of the same order inhabiting Switzerland ; 

 and subsequently published an indifferent work upon 

 the two-winged genera, or Diptera. The Entomo- 

 logical plates of our countryman Donovan, although 

 frequently too highly coloured, and not sufficiently 

 accurate in the more important details, are often 

 elegant, and frequently useful, especially those con- 

 tained in his three quarto volumes, where a great 

 number of species are delineated for the first time. 

 Little, however, can be said in praise of his works 

 on other departments of British Zoology, the colour- 

 ing of which is gaudy, the drawings generally un- 

 natural, and the descriptions unsatisfactory.^: The 

 works of Uddman, Barbut, Bradley, Marty n, Mar- 

 sham, and a few others, published at different periods, 

 are too subordinate to deserve a particular notice. 



* I. F. Wolff. Icones Cimicum, Descriptionibus illustratae. 

 Erlangae, 1800. 4to. 



-f- J. R. Schellenberg. Cimicum in Helvetia? Aquis et Terris 

 degens Genus. Turici, 1 800. 8vo. — Genres des Mouches 

 Dipteres. Zurich, 1803. 8vo. 



\ Ed. Donovan. (1.) The Natural History of British Insects, 

 explaining them in their several States, illustrated with co- 

 loured Figures. London, 1792 — 1820. 16 vols, royal 8vo. — 

 (2.) General Illustration of Entomology; being Epitomes of the 

 Insects of China, India, an - New Holland. London, 1798 — 

 1 805. 3 vols. 4 to. 



