CNEMACANTHIDAE. 353 
thorax, rather broader and less attenuate himd-body, conspicuous puncti- 
form impressions on the 7th interstices, almost smooth prosternum, and 
crenulate thoracic margins, &c. 
$. Length, 24mm.; breadth, 8 mm. 
Staircase, southern part of Remarkables, near Lake Wakatipu. One 
only, found by Mr. T. Hall, at an elevation of 3,500 ft., on the 15th March, 
1914. 
3787. Mecodema rubripes sp. nov. 
Elongate, narrow, moderately convex, brilliant aeneo-niger; the femora, 
front pairs of coxae, posterior trochanters, and glabrous basal joints of 
antennae rufous; remaining joints of these last, the tibiae, and tarsi more 
or less rufo-piceous. 
Head narrower than front of thorax, a third shorter, somewhat closely 
and distinctly punctate in line with the only moderately prominent eyes, 
elsewhere almost quite smooth; epistome widely emarginate, broadly 
tri-impressed ; labrum short, subtruncate in front. Thorax slightly longer 
than broad but appearing elongate, base and apex somewhat emarginate ; 
lateral margins simple, gently curvedly narrowed backwards, but contracted 
and straight-sided at the base, with rectangular angles there; disc¢ nearly 
smooth, median groove, in some aspects, apparently. not abbreviated, there 
is a slight transverse impression near the front, this is more or less distinctly 
punctured, basal region similarly punctate, with rather elongate and deep 
fossae. Elytra double the length of thorax, rather broader than it is even 
at the base, gradually narrowed behind; on each there are 6 moderately 
deep, irregularly interrupted dorsal striae, which, on some parts, seem to 
consist of unequal series of punctures, the 7th and 8th are nearly similar ; 
3rd and 5th interstices evidently broader than the others, 7th with 4 or 5 
setigerous punctures, the lateral space almost smooth, the suture and inter- 
stices are more or less costiform and confluent near the apex. 
Underside glossy. Prosternum nearly smooth on the middle, rather 
coarsely and closely punctured elsewhere, mesosternum similarly sculptured 
throughout, metasternum less deeply, the abdomen with elongate impres- 
sions near the sides. 
Palpi, tibiae, and antennae of normal structure, the terminal 6 joints 
of these last less thickly pubescent than usual. 
3. Length, 144 mm.; breadth, 4mm. 
Stewart Island. The sole representative of this easily recognized species 
has lost an antenna and foreleg. It was discovered by Mr. W. Traill in 
1913, and forwarded recently to me by Professor Chilton. 
3788. Mecodema erraticum sp. nov. 
Hlongate, moderately convex ; glossy black, antennae, tarsi, and palpi 
piceous. 
Head narrower than thorax, with irregular interocular rugae, vertex 
smooth, forehead indistinctly sulcate ; labrum slightly rounded, broadly 
medially impressed behind. Thorax very little broader than long, base 
and apex subtruncate, its sides evenly margined, indistinctly crenulate, a 
little rounded, moderately curvedly narrowed behind the middle, more so, 
but not abruptly, near the base, with obtuse posterior angles ; disc evenly 
convex, with a few obsolete transverse striae, base and apex with short 
but not deep longitudinal ones, basal fossae rather small and shallow, with 
