CHRYSOMELIDAE. 467 



and by the more regular though equally fine serial punctures ; these 

 are continued almost to the extremity of the elytra and are more or less 

 visible even at the base, where, between the suture and 1st series, there 

 is a short row of fine punctures. The dark antennae and legs are mani- 

 festly different. 



i. Length, 4| mm. ; breadth, 3^ mm. 



Mount Dick. A single female from Mr. T. Hall. 



3966. Caccomolpus substriatus sp. nov. 



Shining, aeneo-niger ; legs, antennae, and palpi fusco-rufous, as is 

 the clypeus usually. 



Head without definite impressions, finely and distantly punctate. 

 Eyes transverse, moderately convex, with distinct facets. Thorax quite 

 twice as broad as long ; disc finely yet distinctly but irregularly punctate, 

 obsoletely towards the sides. Scutellum smooth. Elytra thrice the length 

 of thorax and concealing the pygidium ; at the base the serial pmictures 

 are indistinct, they are somewhat irregular, but behind the middle, in the 

 female particularly, assume the form of broad shallow striae, which are 

 not wholly obliterated even on the posterior declivity ; interstitial punctures 

 very irregular. 



Tibiae of the male, the intermediate and posterior, strongly arched 

 below the middle ; basal joint of anterior tarsi suboordate. longer than 

 broad . 



The less transverse thorax, different and coarser elytral sculpture, and 

 unexposed pygidium. distinguish this from C. halliamis. The underside 

 is not at all iridescent, the middle of the prosternum is less convex, and 

 the intermediate abdominal segments are scored with many longitudinal 

 striae. 



Length, i^ mm. ; breadth, 3^ mm. 



Ben Lomond. A single pair, and a mutilated male now mouiited on 

 its back, were detected amongst decaying vegetable rubbish on the 6th 

 March. 1914. by Mr. Hall at a height of about 2,000 ft. 



3967. Caccomolpus tibialis sp. nov. 



Convex, subrotundate, nitid, bronzed-black ; legs and antennae rufo- 

 testaceous, base of tibiae more rufescent. 



Head with a few minute punctures only. Thorax nearly thrice as broad 

 as long ; disc distinctly and irregularly but not coarsely punctate, nearly 

 smooth at the sides, the apex with a transverse series of about a dozen well- 

 marked punctures. Scutellum smooth, not elongate. Elytra nearly thrice 

 the length of thorax ; distinctly and somewhat irregularly but not coarsely 

 seriate-punctate, the punctation equally evident but confused at the ex- 

 tremity, less distinct at the base, the interstitial ])unctures finer and 

 irregular. 



Male. — Anterior tibiae evenly arcuate, the middle and hind pairs slender 

 near the base, obtusely angulate and iiicrassate. the former especially, 

 below the middle ; basal joint of front tarsi elongate-subcordate. 



The nearest ally. C. flectipes (3667), taken on Mount Hutt in Canter- 

 bury, is larger, its head is rather closely punctate, the sculpture of the 

 elytra is less definite ; the middle and hind pairs of tibiae are not only 

 thicker but are also slightly twisted below the middle, and the front pair, 



