COLEOPTERA 235 



(7) Metroiuciuts scntpulosiis, Blackburn. 



AncJiomeiius scrupitlosits Blackburn, Ent. Mo. Mag. xiv. 1877, p. 145. 



This species has a very broad yellow tip to the elytra, and the lateral margins 

 broadly yellow. Mr Perkins found at Pauoa a single specimen that may belong to it, 

 but it has the thorax longer than the original type, now in the British Museum. 



Hab. Oahu. Unique; found under bark at an elevation of 1500 ft. (Blackburn). 



(8) Mctronicnus Icntiis, sp. nov. 



Piceus, capite thoraceque rufescentibus, antennis palpis pedibusque flavis ; pro- 

 thorace parvo, basin versus angustato ; elytris sat profunde striatis. Long. 6 — 7 mm. 



One of the smallest of the genus ; with short antennae and legs. The thorax is 

 narrow, much narrowed behind, the hind angles not rounded but definite and obtuse. 

 The elytra are blackish, with the inflexed margin yellow, the tips narrowly j-ellow. The 

 striation is rather deep but the interstices are not in the least convex. The tarsi are 

 short with the sculpture on the upper surface very conspicuous, the fourth joint not in 

 the least lobed. 



Very similar to Mesothriscus hamaiicnsis, but smaller and with shorter antennae. 

 1 have mentioned that Atclothrits hawaiiensis is also very similar. As the three examples 

 of Jlletroiiieiins lentiis are the only trace we have of the existence of Rlctromcmis in 

 Hawaii, it is not impossible that they may be depauperated examples of Atelothriis 

 hawaiiensis, but I think this highly improbable. 



Hab. Hawaii. Kilauea, i^ miles on the Hilo road, August 1895, one specimen ; 

 Kilauea in August and September 1896, one specimen on each occasion (Perkins) ; 

 Hawaii, one specimen (Koebele). 



(9) Mctrovicnits cpiainis, Blackburn. 

 Anchoiucims epicnnis Blackburn, Ent. Mo. Mag. xiv. 1877, p. 145. 



This species may be recognised by its large size' and robust build, and by the rather 

 dull surface and clear yellow legs. The inflexed margin of the elytra is yellowish, and 

 on the upper surface this shows but little, the yellow colour there being confined to the 

 fine groove inwards from the raised margin. There is no yellow colour at the tip. The 

 surface of the elytra is more dull in the female than it is in the male, except near the tip, 

 where in each sex the peculiar minute reticulation, on which the dullness depends, is very 

 visible. These characters apply well to a large series of specimens from Halemano, from 

 the Kaala mountains and from Kawailoa Gulch (in all about 100 specimens). From other 

 localities there is but a small series, and though in each case the examples are some of 



' Blackburn, 1. c, gives the length as 9 — <)\ mm., but I find it to be about SA mm. 



