﻿HOPLOTHRIPS CORTICIS : A PROBLEM IN NOMENCLATURE. 105 



that the species before bim was erroneously determined, the type 

 of the genus is what be says be bad, and not wbat be actually 

 bad. Obviously, tbis principle obtains also wben a subsequent 

 author designates as type of a polybasic genus an originally 

 included, misidentified species. Karny's designation of " II. 

 corticis " as the tt/pe oj Hoplothrips must thus he taken to refer to 

 Trips corticis, I)e Geer, and not to Hoplothrips corticis, Amyot 

 and Serville nee De Geer {= Hoplandrothrips sp.). 



The one matter remaining unsettled is that of the scope of 

 the genus— in other words, the determination of the congeners 

 of the type species corticis. It would seem that in the genus 

 Trichothrips, Uzel, we really have two distinct groups, generi- 

 cally distinct, the one including such species as T. pedicidarus, 

 T. semiccecus, T. americanus, and T. angusticeps ; the other 

 embracing those species grouping about T. ulmi, T. pint, 

 H. corticiti (= T. copiosiis), T. karnyi, and Dolerothrips Jiavipes. 

 Tbe former may be denoted as the genus Trichothrips, Uzel, 

 with the type PhUeothrips pedicularia, Haliday (hereby desig- 

 nated) ; tbe latter may be called Hoplothrips, Amyot and 

 Serville, with the type Trips corticis, De Geer, designated by 

 Karny, 1912. 



The following catalogue lists all the known species belonging 

 in the several genera effected by these changes in nomenclature, 

 those prefixed by an asterisk (*) being represented^ in tbe 

 material before me. Many names will perhaps be missed by 

 various systematists ; but these appear to the writer to belong 

 elsewhere. It should be remembered that it is impossible to 

 work satisfactorily from many of tbe existing descriptions. 



Genus Hoplothrips, Amyot and Serville, 1843. 



1843. Hoplothrips, Amyot and Serville, Hist. nat. d. Ins. Hemip. 



p. 640. (Type, Trips corticis, De Geer (= Trichothrips 



copiosus, Uzel), designated by Karny, Zool. Ann. 



Bd. iv. p. 323, 1912.) 

 1895-1915. Trichothrips, auctores, ])ars. 

 1910. Dolerothrips, Bagnall, Fauna Ha^ aiiensis, vol. iii. p. 682. 



(Type, D. jiavipes, Bagnall, by designation.) 

 Species: aljinis, lieuter, 1899, Finland ; angusticeps, Bagnall, 

 1910, Hawaii; harhatus, Bagnall, 1910, Hawaii ; *beachi, Hinds, 

 1902, U.S.A.; bicolor, Bagnall, 1910, Hawaii : *corticis, De Geer, 

 1773 (nee Amyot and Serville, nee Karny), Europe, U.S.A.; 

 dubius, Bagnall, 1910, Hawaii; *Jiavipes, BagnaW, 1910, Hawaii; 

 interniedius, Bagnall, 1910, Hawaii ; japonicus, Karny, 1913, 

 Japan; *karnyi, Hood, 1914, U.S.A.; *karnyi major, Hood, 

 1914, U.S.A. ; lanaiensis, Bagnall, 1910, Hawaii; ovatus, Bagnall, 

 1910, Hawaii; perkinsi, Bagnall, 1910, Hawaii; pini, Haliday, 

 1837, England ; "^ulmi, Fabricius, 1781, Europe. 



