404 FAUNA HAWAIIENSIS 



epistome is much longer ; the head is comparatively narrow, the side not in the least 

 prominent in front of the eye ; mentum less transverse. Thorax less rounded at the 

 sides than it is in A. variaits. Side margin of elytra strongly elevated. The anterior 

 tibiae differently shaped (PI. XIII. fig. 3) from those of A. ivaterhotisei and A. hono- 

 luluensis. The hind legs straighter, less dilated at the tips, and with more hair. 

 I am indebted to Mr G. C. Munro for this species. He found four specimens on 

 Kauai above Kaula in July, 1897. 

 Hab. Kauai (Munro as above). 



(3) Aptcrocyclus adpropinqnans, sp. nov. 



^ Niger, opacus, epistomate elongatim prominulo ; elytrorum margine laterali 

 modice elevato ; tibiis anterioribus ad apicem acute bidentatis, praeterea fere muticis. 

 Long. 1 7 mm. 



This differs from A. niunroi, to which it is at first sight e.xtremely similar, by the 

 more circular elytra with less elevated lateral margin, and by the shape of the front 

 tibiae (Plate XIII. fig. 4), which expand more abruptly at the tip and have the notch 

 between the two apical angles deeper, while above this they are almost unarmed on the 

 outer edge, there being only a trace of one tooth. Besides this the mandibles are 

 more slender, and their upper surface is less flat and less punctate. Only one specimen 

 has been found, and it remains to be seen whether the capture of more e.xamples would 

 show it to be a variety of A. niunroi. 



Hab. Kauai : Makaweli, 2000 — 3000 ft., in May or June, 1894 (Perkins). 



(4) Apterocyclns varians, sp. nov. 



^ Niger, subdepressus, opacus ; epistomate medio prominulo ; cantho oculari 

 distincto ; elytris margine laterali obsoleta ; scutello angusto apice fere acuminata ; 

 tibiis anterioribus apice lata, fere truncata. Long. corp. sine mandib. 14 — i8i mm. ; 

 lat. J^ — 9 mm. 



This is a rather variable species, one specimen having the head and thora.x shining. 

 One small male, with the mandibles slender and bearing only a small tooth, approaches 

 A. feminalis. We have received nine specimens, and most of them are in very bad 

 condition, having apparently been found dead. 



The type specimen has the elytra distinctly divergent at the tips ; the front tibiae 

 (PI. XIII. fig. 5) very broad, with the tip obliquely truncate though just perceptibly 

 emarginate, and the middle tibiae without any trace of a tooth on the outer margin. 

 The other .specimens vary in these points ; in fact no two specimens are quite alike. 



Hab. Kauai : Mounts Waimea, 5000 ft. v. 1894 (6 specimens) ; Koholuamano^ 

 IV. 1895 (i specimen); 4000 ft. vii. 1896 (2 specimens) (Perkins). 



