Hebard—Dermaptera and Orthoptera of Hawaii 201 
Oahu, (A. Koebele), 13, [Terr. Bd. Agr.]. 
Waimea Mountains, Oahu, III, 13, 1910; (O. H. Swezey), 
16, [Hebard Coll.]. 
Kauat 2000 to A000: feet, I] and IM, 1919, (J. gA. Kusche), 
aidee7 2, A000) feet, lV, 4, 1910; (J. A.. usche), 14; 
3000 feet, IV, 11, 1919, (J. A. Kusche), 1@ [Hebard 
Coils: 
Kokee, Kauai, II,,1919, (J. A. Kusche), 19, [Bishop Mus.]. 
Mam 2000 feet, DIT, ro, 1919; (J. A. Kusche), 1.9; | Hebagd 
Colla): 
The species is apparently very plastic and may, indeed, divide 
into several insular races. Additional material is, however, required 
before nominal recognition of any of the forms would be justifiable. 
The males before us, with four exceptions, represent the type 
shown in Plate xxv1, 1. These have the lateral portions of the 
distal abdominal tergites irregularly and weakly rugulose, with 
irregular impressions. The male from the Waimea Mountains, 
Oahu, is similar to these except in having the broadened proximal 
portion of the forceps form a broad tooth on the internal margin, 
instead of tapering gradually distad as in the others. One Kauai 
male has the forceps more slender, tapering more gently than those 
of the others and showing a very weak curvature from base to 
apex. In this specimen the lateral portions of the distal abdominal 
tergites are very finely impresso-punctate rather than irregularly 
rugulose, appearing smooth except under high magnification. This 
is apparently the simplified type developed in the species. Such a 
condition is known for many species of earwigs and in many speci- 
mens gives a very different facies from the normal condition. 
The male labelled simply “Oahu” and that from Kaumana, 
Hawaii, agree with the Kauai specimen in the smoothness of the 
abdominal tergites and even, weak convexity of the forceps. 
These appendages, however, show a broad tooth on the internal 
margin proximad, similar to but weaker than that of the speci- 
men from the Waimea Mountains, Oahu, and the male from 
Hawaii shows a weak median thickening, as figured on Plate 
KVE, 2. 
[9] 
