J 



88 FAUNA HAWAIIENSIS 



far as the hind margin of the middle acetabula ; the third joint is rather short, the fourth 

 small, about as long as broad, and half as long as the third, the fifth is distinctly larger, 

 slightly longer than broad, the sixth to tenth differ but little from one another, each is 

 much longer than broad, though hardly twice as long as broad, the terminal joint is 

 elongate, three times as long as broad ; the tarsi are rather long and moderately stout ; 

 on the hind legs the basal joint is about as long as the following four together, the 

 fifth joint is of moderate size, the claws are rather small ; the lamina of the hind coxa 

 extends quite as far back as the first ventral suture : the eyes scarcely impinge on the 

 antennal groove, which extends as far back as the base of the thorax independent of 

 the hind angles ; the outline of the thorax is very regular, there being not the least 

 sinuation of the sides near the hind angles. The sides of the mesothoracic cavity are 

 slender, and are obtuse in front, not in the least tuberculate. Length 4 — 5-!- mm. 

 Breadth less than 2 mm. 



Hab. Oahu (Blackburn); Honolulu mountains; N.W. and S.E. Koolau range 

 (Perkins). 



I have assigned to the species, with doubt, two specimens, which are rather larger 

 and darker in colour, and have the fourth joint of the antenna slightly longer. They 

 appro.ximate to D. ardiius (Hawaii). 



(4) Dromaeolns agriotoidcs, sp. nov. 



Nigrofuscus, elongatus, angustus, postice acuminatus, fiavo-pubescens, .sat nitidus, 

 antennis pedibusque rufis, antennis elongatis. Long. /-^--Si^ mm. 



Allied to D. bonvoidoiri, though much larger and darker in colour, and with the 

 upper surface more shining. The elongate antennae extend back almost to the hind 

 margin of the metasternum ; when placed in their grooves three joints extend beyond 

 the extremity of the thoracic angles ; the fourth joint is a little longer than broad, the 

 fifth is considerably longer, and the terminal joint is very long, slightly over \ mm. 

 The punctuation of the upper surface is rather scanty and fine, but quite definite, and 

 the striation of the elytra is rather more distinct than usual. The borders of the 

 mesosternal cavity are slender, and the punctuation of the under surface fine. 



Hab. Hawaii. Two specimens; Olaa, June, 1895, and Kilauea. July, 1895 

 (Perkins). Mr Koebele has also found a specimen. 



(5) DroDiacolus arditits, sp. nov. 



Nigrofuscus, elongatus, angustus, postice acuminatus, flavo-pubescens, baud nitidus, 

 antennis pedibusque rufis, illis sat elongatis. Long. 6f — 9 mm., lat. 2^ — -3 mm. 



Closely allied to both D. bonvouloiri and agriotoides. Darker in colour than the 

 former, with a rather long fourth joint and a shorter terminal joint to the antennae. 

 More densely punctate and less shining than D. agriotoidcs, and with shorter antennae. 



