THK CANADIAN ENTOMOLOGIST. 391 



(a). "In case of Liniicean genera, select as type the most common or 

 the medicinal species." (Page 56.)^ 



(b). "If the genus contains both exotic and nonexotic species from 

 the standpoint of the original author, the type should be selected from the 

 nonexotic species, unless such procedure is contraindicated by the 

 original author's intentions." (Page 58.) 



(c). "All other things being equal, page precedence should obtain in 

 selecting a type." (Page 56.) 



(d). "Show preference to the best described, best figured, best known, 

 most easily obtainable species, or of which a type specimen can be ob- 

 tained." (Page 56.) 



Q. I hold "for the adoption of the original published orthography (of 

 generic names), be it good, bad or indifferent (and agree), in proposing 

 that all names incorrectly written should be construed under Article 8k, 

 of the International Code, as 'arbitrary combinations of letters.'" (Page 76.) 



10. It seems to me a just ruling that published misprints, etc., should 

 be accorded a definite nomenclatorial status, "and are therefore subject to 

 citation, and should be listed." (Page 78.) 



Following is a list of the genera and subgenera of the blister beetles 

 so far as I have been able to select their type species in harmony with the 

 foregoing principles. In the first group I include the genera, unfortunately 

 few, of which the type is unequivocally fixed by original designation /^either 

 direct or implied) by the author of the genus. (Rule 4, supra.) 



Alosimus Mulsant, 1857, type species jj/zva^/zi Linne', 1758. In the 

 original description of his genus the author mentions by name only one 

 species as coming under it, namely, syriacus L., which therefore must be 

 considered as the type of the genus. 



Cerocoma Geofifroy, 1762, type species schcefferi Linne, 1758. 

 Geoffroy definitely refers to the page and number of Linne's species. 



Cysteodemics LeConte, 185 1, type species armatus LeConte, 1851, 

 virtually designated by author of genus. 



Gyncecoineloe Wellman, 19 10, type species opacus G. H. Horn, 1867, 

 formally designated by author of genus. 



3. Si genus receptum, secundum jus natura; et artis, in plura dirima debet, 

 turn nonien antea commune manebit vulgatissima; et officinal! plania;." Philo- 

 sophia Botanica, 1751, p. 197. This Linnrean rule for botanical names has, by 

 common consent, been recognized as valid in zoology also. (Cf. page 12.) 



