35^ OccasioiKil Paprrs Bcrnicc P. Bishop Miisciiiit 



inwan! tn tlio sliarj) apices. .\s a result the distal i-xtreiiiity is itself sharp 

 and directed niesad, not hearing on its internal face the niinnte tooth d.' 

 rected niesad that is characteristic of most of the species of the genus. 



The series from Kilauca is recessive in coloration ; straw color, with 

 linih markings very weak and in two of the males the triangular area of 

 the tegmina, normally suffused with darker hrown, shows hut a faint trace 

 of such sufifusion. 



Paratrigonidium debile Perkin.s 



1899. Paratrigoiiidiiiiii drbilc Perkins, Fauna TIawaiiensi.s. 

 p. 21. [ 6 : Mountains of Oaliu, 2000 feet an<l upward.] 



Mount Kaala, Oahu. A'lII, 11, 1912, and IX, 7, 1913. (O. H. 

 Swezey). i 5 , 2 $ . [H. S. P. A. and Hebard Coll.]. 



Mount Konahtiantii. Oahu. AM. 6, 1919, (J. A. Ktische). 2$, 

 [Hebard Coll.]. 



Alotmt Tantalus, Oahu, XI, 25, 1906, ( O. II. Swezey). 3$ ', 

 1300 feet, I, 21 and II, 25, 1906. (W. M. Giffard ) 2$ ; 1500 feet 

 II. 2. 1906. (W. M. Giffard), i S : 1800 feet, II, 18, 1906, (AV. ^I. 

 Giffard. i S ; 2000 feet, \'III, 29, 1909, (J. Kotinsky), i $ , [Terr. 

 Bd. Agr.. n. vS. P. A., Hebard Coll. and U. S. X. ^1.]. 



Mount Olympus, Oahu, \^ 18, 1919, (J. A. Kusche), 1$, 

 [Hebard Coll.]". 



This species is evidently close to P. I'arians Perkins, dift'ering 

 in the average shorter and more truncate male tegmina. The gen- 

 eral coloration is pale, with limb markings subobsolete or weakly 

 defined. In the male, however, the darkened triangular area of the 

 tegmina is conspicuous. 



The contrast between dcbilc and -I'lirians is somewhat analo- 

 gous to that wdiich exists between the Xorth American species, 

 Neinohius fasciatiis (DeGeer) and Nemobiits iiiacitlatus Blatchley, 

 though in the present case genitalic differences are not apparent. 



Paratrigonidium filicum Perkins (Plate xxvii. 2.) 



1899. Paratrii^oind'mm filiciiiii Perkins. Fauna I lawaiiensis, 

 II, p. 17, pi. II, fig. 6. [ (5 , $ ; Olaa (district), Hawaii, 

 at 2000 feet.] 



[54 1 



