\ COLEOPTERA 251 



part ; shining blark. the base much punctate, the anterior impression marked with 

 longitudinal strigositi'tS. the median channel fine. Elytra rather elongate, narrow at 

 the shoulder, of a peculiar Pjeenish-black colour, with a silky reflection, almost without 

 sculpture ; traces of series of v'^O' fine punctures can sometimes be detected, as well as 

 a slight appearance of ridges thac have been eflaced, and so scarcely separate grooves 

 that are hardly perceptible. Leo-s ve^V slender, yellow, with the knees and tibiae more 

 or less infuscate. 



This species has a superficial resemblaiiT-e to Metrothorax haleakalae, but differs in 

 many points, independently of the generic character. The thoracic setae are very long, 

 but are only too easily removed after death. The- small series of ten examples shows 

 very little variation. 



Hab. Maui. Haleakala, 4000—5000 ft., on several'" r>fraSionb /P^^.l^ins). 



(18) Mccyclot/iorax ocjilafus, sp. no v. 



Elongatus, niger, elytris viridi-micantibus, apice summo testaceo, antennis palpis 

 pedibusque rufis ; thorace elongato, basi constricta subelongataque, lateribus tenuissime 

 marginatis, margine flavescente ; elytris subtiliter seriatim punctatis. Long. 5^ — 6 mm. 



Closely allied to J/, iteratiis, but not so deeply black in colour, the elytral tips and 

 the margin, and even the thoracic margin, flavescent, the elytra with five distinct, abbre- 

 viated series of fine punctures. Besides this the form is a little different, the elytra 

 being broader behind the middle. 



One of the finest of the species ; the head broad with largely developed eyes. The 

 constricted basal part of the thorax elongate, the anterior impression strigose, the median 

 channel fine. 



This species was discovered in 1902 by Mr Perkins; he captured two specimens 

 on Molokai at an elevation of about 4000 ft. 



Hab. Molokai; as above (Perkins). 



(19) Mccyclothorax loiignlus, sp. nov. 



Angustus, haud nitidus, nigricans, supra capite medioque thorace jsicescentibus ; 

 thorace lato, valde transverso, fere elytrorum latitudine, angulis posterioribus obtusis ; 

 elytris subtiliter striatis, foveolis quatuor sat magnis, et ante apicem impressione utrinque. 

 Long. 4^ mm. 



Allied to M. sobrimis, yet very distinct, smaller, narrower, with the thorax almost 

 as broad as the elytra, and no metallic lustre. We have only one specimen ; it is a male 

 with sexual characters similar to those of Jl. sobi-iinis, the front tarsi being distinctly 

 dilated and the front femora much thickened. The elytra get a little broader from the 

 shoulders to behind the middle. The striation of the elytra is very shallow except at 

 the tip, the outer striae being obsolete except there. The four foveoles of the elytra 



