28 [February, 



p. 122) I have pointed out that A. saltitans, Fall. (= marginatus, Curt.), in Ent. 



Mag., 1833, p. 197, has been described by Curtis as the only species of the genus 



Chlamydatus and thus ought to be considered as the type of it. Puton, too, has 



resumed the name Chlamydatus for Agalliastes. Also the combination of genera, 



of which the former genus Agall tastes makes a part as subgenus (by Saunders) 



ought therefore to get the name Chlamydatus 1833 instead of Plagiognathus (Fiebcr 



1859). 



CORIXINA. 



Kirkaldy has (Entomol., 1898, p. 252) called attention to this, that the geno- 

 type of Corixa, Geoff r., is striata, Geoff r. (geoffroyi, Leach). The subgenus, to 

 which this species belongs, ought thus to retain the name of Corixa. 



The names of the different subgenera are thus : Corixa, Geoff r., 1762 {Macro- 

 corixa, Thorns., 1869). Glxnocorisa, Thorns., 1869 (Oreinocorixa, B. Wh., 1873 ; 

 Saund., 1892). Type : cavifrons, Thorns. Arctocorisa, Wallengr. (Ghenocorisa, 

 p. et Corisa, Put., 1880 ; Glasnocorixa et Corixa, Saund., 1892 ; Basileocorixa, 

 Kirk., 1898). Type: carinata, Sahib. See Kirkaldy, Kntomol., 1900, p. 28, Note. 

 CalUcorixa, B. Wh., 1873. Cymatia, Flor., 1860. 



To the above-mentioned changes there ought to be added still a 

 few more, in view of the principle to be followed, which I consider to 

 be the most correct, i. <?., that when a specific name is existing simul- 

 taneously twice or several times within the same genus, the latter 

 ones, as lacking every right, should be rejected for ever and replaced by 

 others. Rather early Gmelin had already carried out such a rejection 

 of double specific names used in his time, and replaced the more recent 

 of them by new ones. Some authors, however, as soon as the two 

 species originally called by the same name are brought into different 

 genera resume the later of the original names which had already been 

 replaced by another. But such a proceeding, it seems to me, threatens 

 the necessary stability of nomenclature. If this conception is ap- 

 proved of, and Kirkaldy among others shares it, then the changes 

 mentioned below must still be made with the names adopted in Puton's 

 Catalogue of 1S99 ; also in this respect this author has not always 

 acted consistently. For instance, he does not approve of the name 

 Calocoris noroegicus, Gmel. (= bipunctatus,T?.,nec L.),aud hispanicus, 

 Gtnel. (= sexpunctatus, F. nee. L.), but uses the name C. ochromclas, 

 Gmel., which, according to the principle he follows, ought to be called 

 variegatus, Mull. (nee. Foda). 



Here follows the list. Many of these names have been accepted 

 by several later authors, but a consistency in their adoption has 

 scarcely taken place. 



Ancyrosoma leucogrammes, Gmel. (Cimex albolineatus , 1781, nee Goeze, 1778), 

 Stagonomus italicus, Gmel. (C. bipunctatus, Fabr., 1781, nee Linn., 1764, nee Fabr. 

 1779), Eusarcoris fabricii, Kirk. (E. met anocephal us , Fabr., 1775, nee Linn., 1767), 



