﻿374 tttE fcNTOMOLOGISt. 



general conclusion to be drawn from the experiments on yellow ? 

 Having found red always the same, wherever displayed, can we 

 lay down an equally general law as to yellow ? are all yellows one 

 and the same ? Apparently no ! very far from it : we find, on 

 the contrary, the most different and contradictory results, and 

 seem almost driven to conclude that under the common name of 

 yellow there are confused together several entirely different 

 colours, including both true pigment colours and mere " physical " 

 colours. But this latter assumption, as I have already pointed 

 out,* may be considered almost completely negatived by the 

 arguments deducible from the results yielded by red ; and further 

 evidence from the comparative study of allied yellow species will 

 be found in the present section. 



[Want of space compels us to hold over the remainder of this 

 subsection until next month. — Ed.] 



(To be continued.) 



Erratum. — Page 312, line 20, for " my " read " any." 



LIST of INSECTS TAKEN in the FAEOE and WESTMANN 

 ISLES, and in ICELAND, 1890. 



By F. A. Walkeb, D.D., F.L.S. 



COLEOPTERA. 

 Faroe Isles. 



Thorshavn. — June 9th, Nebria brevicollis, Calathus cisteloides, Patro- 

 bus hyperboreus, Cryptohypnus riparius, Tachinus rufipes. 



Klaksvig. — June 10th, Nebria brevicollis, N. gyllenhali, Patrobus 

 hyperboreus, Carabus catenulatus, Quedius fuliginosus, Otiorhynchus 

 scabrosus. 



Westmann Isles. 



Heimaey. — June 12th, Otiorhynchus monticola, Barynotus schonherri, 

 Nebria gyllenhali, Calathus melanocephalus var. nubigena, Cryptohypnus 

 riparhis, Notiophilus bipustulatus, Creophilus maxillosus, Platysma vitreus, 

 Byrrhus fasciatus, Amara quenselii, Aphodius lapponum, Lesteva bicolor, 

 Patrobus hyperboreus, Otiorhynchus • ? 



Eeykjavik. — June 13th, Nebria gyllenhali, Philonthus ceneus, 

 Calathus melanocephalus var. nubigena, Otiorhynchus monticola, Amara 

 quenselii; June 14th, Nebria gyllenhali, Barynotus schonherri, Calathus 

 melanocephalus var. nubigena, Otiorhynchus monticola, Patrobus hyper- 

 boreus ; June 15th, Nebria gyllenhali, Aphodius lapponum, Otiorhynchus 

 monticola, Calathus melanocephalus var. nubigena. 



Engey Island. — June 14th, Nebria gyllenhali, Cryptohypnus ripa- 

 rius, Calathus melanocephalus var. nubigena, Patrobus hyperboreus, 

 Otiorhynchus monticola. 



* See pp. 310, 311. 



