Button. — On New Zealand Orthoptera. 21 



Hemideina broughi, Buller, Trans. N.Z. Inst., xxviii., 324 



{Deinacrida) . 



An examination of the type in the Colonial Museum, at 

 "Wellington, showed me that it had very distinct apical spines 

 on the middle and posterior femora, and that it is identical 

 with my H. ricta. I was misled by Sir W. Buller' s state- 

 ment, " The four anterior femora free from spines." 



Pleioplectron cavernae, sp. nov. Pacliijrhamma edivardsii, 

 Brunner, Mon. Stenopelmatidse, p. 58, not H. edwardsii, 

 Seudder. 



Joints of the antennae cylindrical in both sexes. Fore and 

 middle femora unarmed below ; hind femora with live to seven 

 spines below on the inner side and two minute ones on the 

 outer in the male, but only four on the inner side and none 

 on the outer in the female. Fore and middle tibiae with three 

 spines in each row. Hind tibiae with from twenty-five to 

 thirty spines in the outer, and twenty-two to twenty-eight in 

 the inner row, small but regular, some of the proximal ones 

 ■very minute. Subgenital plate of the male with a lanceolate 

 projection between the bases of the styles ; not keeled. 



Length of pronotum, 3 6 mm., $ 5 mm.; of thorax, 3 

 13 mm., 5 12,mm. ; of abdomen, 3 20mm., $ 16 mm.; of fore 

 tibia, $ 14 mm., ? 11mm.; of hind tibia, (?34mm., $ 20 mm.; 

 of hind femur, 3 27 mm., 5 18f mm. ; of antennae, S 93 mm., 

 ? 55 mm. 



Collected by Mr. E. M. Laing in a small cave near the 

 Karapiti fumarole, Taupo. 



Colour brown, spotted with yellowish-brown. Legs yel- 

 lowish-brown, the femora banded with brown. The colours 

 «,re variable, no two specimens having the same markings. 



This species is easily distinguished from the others belong- 

 ing to the genus by the greater number of spines on the lower 

 surface of the hind femur. Described from four males and 

 two females. 



The type of Pachyrhamma is by description Pleioplectron 

 caverna, but by figure it is Pachyrhamma fascifer ; conse- 

 quently, I suppose that I am at liberty to select one or the 

 other. I take the figure of P. fascifer (= novcu-zealandia) as 

 the type, for to do otherwise would entail the making of anew 

 .generic term for it. 



