188 



Ehjtra rather large, broader and twice longer than tlie head and thorax, widest 

 l)eyi)nd the middle, more deeply and more closely punctured limn the thorax, 

 with the interstices alutuceoiis, sides faintly margined, apex rounded. 



Abdomen with the jiygidium very little exposed. 



Lefjs short, very slender, bright j'ellow. 



Under parts entirely castaneous, ventral segments alutaceous. 



Differs from (). pimetatidus in the small size of its thorax, large elytra, more convex 

 form, and deeper sculpture. 



Habitat, Asia. Found in Japan by Mr. Lewis. 



Orthoperus atomus. 



(Cryptophagus) atomus, Gyllenhal., Ins. Suec. i. p. 185, 1808. 

 iDermestcs) picatus, (?) Marsh. Ent. Brit. p. 80, 1802. 



L. c. xg I'D- = 0'87 mm. — Ovalis, valde convexus, nitidissimus, sat fortiter 

 alutaceus, castaneus ; eapitc modico ; pronoto modico, sat angusto ; sat fortiter 

 alutaceo, punctis exiguiis longe remotis notato, lateribus leviter rotundatis, mar- 

 ginatis, margine basali modice sinuata, angulis fere rectis ; eli/tris capite atque, 

 pronoto parum latioribus, duplo longioribus, prope media latissimis, sat profunde 

 alutaceis, j^unctis exiguis longe remotis uotatis, lateribus marginatis, ad apices sat 

 attenuatis; abdominis pygidio excerto ; pedibus modicis, litte fiavis, tibiis anticis 

 ad apices dilatatis ; antennis sat magnis, htte flavis, articulo quinto sexto multo 

 majori. 



Head moderate ; eyes not prominent ; antennae large, bright yellow, with the fifth 



joint much larger than the sixth. 

 Thorax moderate, rather narrow, strongly alutaceous, with a few very minute 



scattered punctures, sides slightly rounded and margined, basal margin 



moderately sinuated, with the angles nearly right angles. 

 Scntelliim very small, rounded. 

 Elytra rather broader and twice longer than the head and thorax, widest near the 



middle, rather deeply alutaceous, with a few minute scattered punctures, sides 



margined, apex rather attenuated. 

 Abdomen with the p3'gidium exposed. 



Legs moderate, bright yellow, anterior tibia slightly dilated at the apex. 

 Under parts castaneous. 

 Differs from O. jinnctnttdus in its smaller size, more attenuated form, long and 



robust bright yellow antennae, with their fifth joint much longer than 



the sixth. 



Habitat, Europe. Kather common. 



I have used the names "atomus, Gyll.," and "<it<>mariits, Heer," in preference 

 to " pieatiis, Marsh.," and " punctum. Marsh." Although these species are desig- 

 nated by the latter appellations in continental collections, yet the descriptions 

 given by Mr. Marsham are so exceedingly vague and indeterminate, that it would 

 be confusing to alter our present nomenclature without actual comparison with the 

 Kirbyan types. — A. Matthews, Ent. Mo. Mag. vol. xxii. p. 107.] 



Orthoperus ovalis. 



O. oralis, Matthews, Biol. Cent.-Amer. Col. ii. pt. i. p. 123, 1888. 



L. c. ^f. lin. = 0'87 mm. — Ovalis, validissime convexus, distincte et regulariter 

 punctatus, niger, nitidus, pilis brevibus sparsissime indutus ; 7)/v)/(o^) modico, dis- 

 tincte punctate, interstitiis nitidis, linen transversa prope basim leviter impresso. 



