COLEOPTERA 237 



(12) JMetronieints fraiidato)', sp. nov. 



Nigerrimus, nitidus, antennis pedibusque (tibiis interdum) infuscatis ; prothorace 

 subquadrato, basin versus leviter angustato, anguHs posterioribus obtusis ; elytris sat 

 profunde striatis. Long. (y\ — 7 mm. 



Plate VI. fig. 18, vestigial wing. 



This species is more black and shining than most of its congeners. It has no 

 specially characteristic feature so far as I can detect, and perhaps is nearest to 

 M. meticulosus, but it is rather larger, and is of less depressed form with rather longer 

 antennae and legs, and the thorax is less narrowed to the base, with the hind angles less 

 rounded. In colour it seems very different. The epipleuron is yellowish, but this colour 

 does not extend to the upper surface. It is more similar in appearance to Atelothrus 

 filipes, but the side of the thorax stands up more at the hind angle, and the obtuseness 

 of the hind angles is caused more by the narrowing of the sides and less by the curving 

 forwards of the base, and the tarsi are not quite so slender. Thirty-six specimens. 



Hab. Molokai, 4000 ft., in May and June, 1893; Boggy plateau about 4000 ft., 

 below the densest forest, June 1896 (Perkins). 



Nos. 1253, 1255, Prof. Thaxter for Laboulbeniaceae. 



(13) Metrometiiis mcerens, sp. nov. 



Niger, minus convexus, antennis testaceis articulo tertio infuscato, pedibus fusco- 

 testaceis ; prothorace baud transverso basin versus parum angustato, angulis posterioribus 

 haud rotundatis, parum obtusis ; elytris leviter striatis. Long. 8^ — 9 mm. 



A rather large Metromenus, with dark legs, and with the third (sometimes also the 

 fourth) joint of the antennae darkened. The antennae and legs are rather long, the 

 former about 5 mm. Head broad. Thora.x dark in colour with the margins scarcely at 

 all paler, the breadth just perceptibly greater than the length, the base nearly as broad 

 as the front margin, the hind angles nearly rectangular, but slightly obtuse. Elytra 

 rather broad at the base, the angle at the junction of basal and lateral margins less 

 prominent and acute than usual, the striation not deeply impressed ; the yellow colour 

 but little developed on the epipleura and not extending to the upper surface. Femora 

 broadly infuscate about the base, tibiae infuscate. Hind tarsi long and slender, their 

 fourth joint rather longer than usual but not lobed. Fourteen specimens. 



This species is not very close to any other. In general form it has a good deal of 

 resemblance to Plaiymis calathiformis. The variation does not seem to be great, but 

 some specimens are more shining and have the elytra more deeply striate than others. 



H.^B. Molokai (Perkins). The localities the same as for M. fraudator. 



