Coleoptera from the Ilaioaiinn Islands. 47 



The only individual I have seen of this species is de- 

 prived of its antenna? ; it is rather more elongate and more 

 convex than O. hrflato, it is of difterent form, owing to its 

 narroAv hind body, and its legs are rather longer and 

 stouter. From the preceding species it differs by its nar- 

 rower hind body, punctate surface, and by its more elongate 

 posterior tarsi. 



Found by beating trees at an elevation of 4,000 feet on 

 Mauna Loa, Hawaii. 



LioplicRna gracilipes, n. sp. Sat elongata, convexius- 

 cula, nigra nitida, glabra, elytris parcissime punctulatis, 

 antcnnis palpis, clypeo, pedibusque tcstaceis ; abdomine 

 ad basin leviter angustato. Lono-. 2 mm. 



Antenna yellow, pilose, slender, rather short, 1st and 2nd 

 joints rather elongate, 3 — 7 differing little from one another, 

 the three apical joints subclavate, being distinctly stouter 

 than the preceding ones, but yet not forming a club. 

 Head greatly narrower than the thorax, very shining and 

 impunctate, yellowish in front. Thorax strongly trans- 

 verse, narrower than the elytra, and at the base closely 

 applied to them ; it is quite black, very smooth, shining 

 and impunctate. Elytra rather elongate, black and shining, 

 extremely sparingly punctured. Hind body rather broad, 

 a little narrowed at the base, very indistinctly punctulated, 

 the basal segments transversely impressed at the base. 

 Legs slender, tarsi slender and elongate, yellow, the ter- 

 minal joint blackish. 



Beaten from a nearly dead tree at an elevation of 

 4,000 feet on Mauna Loa, Hawaii. 



TAophcena Jlaviceps, n. sp. Sat elongata, convexius- 

 cula, nigra nitida, glabra, capite, prothorace anterius, 

 antennis pedibusque flavis ; abdomine ad basin leviter 

 angustato. Long. 2^ mm. 



This species is readily distinguished by the pale colour 

 of the head, Avhich extends to the anterior portion of the 

 thorax ; it is very closely allied to L. gracilijjes, but it is 

 a little more elongate, and the hind tarsi are even more 

 slender and elongate than they are in that species. 



Found by beating trees on Mauna Loa, Hawaii. 



The two species just described have obliged me to pro- 

 pose a new generic name, Lioplicena, they being so distinct 

 from any Aleocharini yet known, that it is impossible to 



