Vox, II, Pr. II] HEBARD—DERMAPTERA AND ORTHOPTERA 321 
1902. Sphingonotus tetranesiotis Snodgrass, Proc. Wash. 
Acad. Sci., IV, p. 444. [¢, 2; Charles, Barrington, Hood, 
Indefatigable and Seymour islands, Galapagos Islands. ] 
We here select the type locality of fuscoirroratus as the Gala- 
pagos Islands. 
The two synonyms erected by Snodgrass were based partly 
on probably genetic color factors, partly on features of colora- 
tion showing only as much individual variation as is well 
known to occur in many species which are members of the 
group to which Sphingonotus belongs. 
Ignorance of these facts might explain such action, but the 
erection of seven additional subspecies, based on Galapagos 
material, is inexcusable. Less striking features of the same 
character were used by Snodgrass as foundation for such 
action. 
In the large series now at hand, every combination and tran- 
sition between these features is found. We do not feel that it 
is necessary to give further space for the discussion of these, as 
such characters in this group have long been known to have no 
importance from a specific diagnostic point of view. We would 
note, however, that generally in the genera related to Tvimero- 
tropis, a number of clearly defined, probably genetic, patterns 
run through many species, while the immediate environment 
has a strong effect on the color and degree of intensification and 
recession of the color-pattern of individuals. 
In the present species a strong response to local environ- 
mental conditions is clearly developed in the coloration and in- 
tensification and recession of the color-pattern, and, as a result, 
some series before us show a certain amount of uniformity in 
these respects. From the viewpoint of an elaborate study of 
the individual variations in this species, with the immediate 
environmental conditions and probably genetic factors taken 
into consideration, Snodgrass might have secured some data of 
interest; but from the standpoint of nomenclatorial stability 
and systematic research the work under consideration is one of 
synonyms are: for trinesiotis—chathamensis, indefatigabilensis 
the most unfortunate found in recent literature. The subspecific 
and albemarlensis; for tetranesiotis—charlesensis, barrington- 
ensis, hoodensis and (again!) indefatigabilensis. 
