Hchard — Dcniiopfcra and OrtJwptcra of Haivaii 311 



Oahu, (A. Koebele), 1$, [Terr. Bd. Agr.]. 



Waimea Mountains, Oahu, III, 13, 1910, (O. H. Swezey), 



I $ , [Hebard Coll.]. 

 Kauai. 2000 to 4000 feet, II and III, 1919, (J. A. Kusche), 



3 <5 . 79 ; 4000 feet, IV, 4, 1919, (J. A. Kusche), 1$ ; 



3000 feet, IV, II, 1919, (J. x\. Kusche), 1$ [Hebard 



Coll.]. 

 Kokee, Kauai, II, 1919, (J. A. Kusche), 1$, [Bishop Mus.]. 

 Alaui, 2000 feet. III, 19, 1919, (J. A. Kusche), 1$, [Hebard 



Coll.]. 



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 xxvi, i. 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 difi^erent 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. 

 Thesie 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 

 XXVI, 2. 



[9] 



