OF NEW ZEALAND. 765 



cylindric ; second also stout, yet much smaller thau first, third elon ■ 

 gate; johats 4-8 decrease in length, eighth transverse; club distinctly 

 three-jointed, the two basal transversal, eleventh joint rounded. 

 Prothorax uneven, about as long as broad, obtusely produced in 

 front, its sides explanate and lobed. Scutellum small. Elytra very 

 convex generally, sinuate at base, longer than thorax. Legs stout ; 

 tihicB compressed ; tarsi four-jointed, tlie three basal short, the first 

 rather larger than second, the terminal longer than the other three 

 conjointly ; claws well-developed, thickened at base. Prosternum 

 deeply emarginate at apex. Metasternum rather short. Ahdomen 

 with five segments, the fourth shortest. Coxcr nearly equidistant. 



Allied to Syncalus, but having the intermediate and posterior 

 legs more approximated. The explanate sides of the thorax are 

 deeply indented so as to form obvious lobes ; sometimes the hind 

 angle of the front lobe and the anterior of the one next to it almost 

 meet, thus lea\dng an opening or hole right through the side of the 

 thorax. 



1356. R. exignus, '^-s. Convex, short and broad, rough, 

 pitchy-red; legs and antennae ferruginous, partially covered with 

 yellowish setiform scales. 



Head immersed up to the eyes, in front depressed and of a brick- 

 red colour, granulate ; antennal elevations not prolonged, rounded. 

 Antenna, moderate, pubescent, basal articulation red, cylindric, 

 second stout, about as long as broad, third slender at base, longer 

 than the contiguous ones, joints 4-8 decrease in length, obconical ; 

 club large, its middle joint transverse, the terminal rounded. Pro- 

 thorax transversal, convex ; sides explanate, divided into four lobes, 

 the anterior largest, forming acute front angles attaining the eyes, 

 the fourth leaving a gap between it and the base of the elytra ; disc 

 transversely convex, grooved longitudinally, with three elevations 

 on each side, the median most elevated ; bearing tubercles or gra- 

 nules. Elytra as broad and nearly twice as long as the thorax, much 

 elevated, but with a somewhat flattened disc, sides nearly vertical, 

 abruptly declivous behind, lateral margins multi-dentate ; their 

 sculpture consists of several rows of granules, causing the surface 

 to appear rugose ; there are two prominent rounded elevations on 

 the summit of the hind slope, and a laterally compressed one near 

 each shoulder ; the humeral angles do not reach the base of the 

 thorax ; the pale-yellow squamosity is chiefly confined to the base 

 and sides. 



In its natural state the insect is covered with greyish sappy 

 matter ; this conceals the true colour and sculpture, and, when 

 examined in that state, more tubercular elevations appear on the 

 elytra. 



Length, li lines ; breadth, f line. 



My specimen was found near Whangarei Harbour. 



Note. — On page igi I pointed out that Ulonotus tuberculatus 

 (No. 340), U. insignis, and U. salebrosus should be associated together 

 in a distinct genus ; Becyntus is enunciated for these three and the 

 present species ; No. 340 may be considered the type. 



