7i€w genera and sj^ecies of TcnehrionidcB. 269 



D. nigrohrunneus, n. sp. 



Long. 2 1 lin. — In this — which is possibly but an 

 extreme variety of the preceding — the elytra are blackish- 

 brown, paling into brunneons at the sides, and the under- 

 side is of a darker brown with a greenish tinge ; the 

 elytra are gradually but distinctly expanded from the 

 humeral angle to behind the middle. 



Hah. — New Caledonia. One example, 2. 



D. chalccus, Fairm., occurs also in New Zealand. 



Saeagodinus, n. g.* 



Mentum rhomboidal, disc convex, impressed at sides 

 and, slightly, at apex : labium partly concealed by the 

 produced apex of the mentum, strongly angularly notched 

 in front ; palpi long, robust ; the labials more (^Duboulayi) 

 or less (Hoivitti) pendulous in the $ ; the terminal joint 

 of all (i?) large and strongly cultriform : mandibles bifid 

 at apex : labrum transverse, broadly emarginate in front 

 and ciliate Avith long rufous hairs, the angles rounded : 

 head deeply but somewhat loosely immersed in the pro- 

 thorax ; contracted behind the eyes;t antennary orbits 

 short, prominent, abruptly rounded ; front and epistoma 

 depressed ; the latter trapezoidal, the sides reflexed and 

 slightly thickened at the margins, the apex faintly emargi- 

 nate ; an angular depression in front of the eye, this — with 

 the depressed firont — gives the appearance of an elevated 

 ridge extending obliquely from the inner corner of the eye 

 to the side of the head at the junction of the antennary 

 orbit and epistoma : eyes divided, the upper portion largest, 

 convex, transversely ovoid : antenna, short, compressed 

 (especially outwardly), joint 3 elongate, 4-7 subequal, sub- 

 obconic, the inner apical angle slightly produced, 4-10 

 subperfoliate, 8-10 gradually shorter and broader, 11 

 smaller than 10, transverse, the apex broadly rounded : 

 prothorax transverse, fully one third wider at base than 

 at apex ; sides foliaceous, reflexed, rapidly and slightly 

 sinuously expanded from apex to beyond the middle 

 {Duboulayi), thence somewhat sinuously contracted to the 

 base ; an oblong shallow depression at the middle of the 



* Sub-fam. Helaincp. 



f This can only be seen when the head is protruded. 



