punctured and transversely wrinkled. Microsculpture: absent except in the bottoms of the punctures and in the basal depressions of the pronotum. Apex of the aedeagus expanded and angular, the left paramere unchitinised at the apex, with a few short setae along the lower margin and one seta at the apex. South Island. Nelson: Gordon's “Knob, nr. Tophouse, holotype ♂, allotype, 1 ex., 10.vi.38 (R. M. King); Glenhope, 1 ♂; Rotoiti Lake, Tophouse, 1 ♂; Mt. Duppa, 3,100 ft., 6 ex.; Motupiko, 1 ex. 13. Mecodema howitti Castelnau 1867, Notes on Australian Coleoptera, p. 73; Trans. R. Soc. Victoria, viii, 1868, p. 159; Putzeys, Ann. Mus. Civ., Genova, iv, 1873, p. 308; H. W. Bates, Ann. Mag., Nat Hist., (4), xiii, 1874, p. 236. Mecodema rectolineatum Putzeys 1868, Ent. Zeit. Stettin, xxix, p. 317 (non Cast.); Ann. Mus. Civ. Genova, iv, 1873, p. 308. Mecodema walkeri* Broun 1904, A. (7), xiv, p. 43 (new synonymy). Figs. 43, 87. Length: 26–31 mm. Colour: black. Head: vertex smooth, with depression, punctures very faint or absent; mentum without setiferous punctures, submentum with 3 on each side. Pronotum: ratio 1·0/1·67/1 37/1·30 (mean of 3 ex.); sides sinuate in front of the posterior angles, which are very blunt, each lateral margin with 10–12 setiferous punctures. Elytra: striae not impressed, their positions rather indistinctly marked by rows of punctures, the punctures separated from each other by 3 or 4 diameters; intervals 1 and 2 flat, remainder slightly convex, more strongly convex at the base; intervals 1, 3, 5 and 7 smooth though crossed by fine transverse wrinkles; intervals 2, 4, 6 and 8 with two irregular rows of punctures similar to those marking the intervals, making four rows in all, the punctures becoming much more coarse towards the sides of the elytra; punctures frequently connected by fine strigae. Ventral surface: proepisterna with a few punctures and strigae near the posterior margin; mesepisterna at most with a very few faint punctures. Microsculpture: faint, isodiametric. Type in the Genoa Museum. South Island. Canterbury: Christchurch, Summit Road, 26.iii.39 (R. Allan), 3 ex.; Akaroa, holotype of M. walkeri and 15 ex.; 9.iii.33 (E. Fairburn), 3 ex.; Hilltop, 2,000 ft., 28.xii.42 (C. E. Clarke), 2 ex. 14. Mecodema bullatum* Lewis 1902, T., xxxiv, p. 202. Mecodema intricatum* Broun 1903, A. (7), xi, p. 451 (new synonymy). Fig. 46. Length: 23–28 mm. This species is easily distinguished by the catenulate 3rd, 5th and 7th elytral intervals. The holotype of M. intricatum bears the label “synon 3470,” from which it is clear that Broun had recognised that his species was synonymous with M. bullatum. Colour: black. Head: frons transversely wrinkled in the middle, longitudinally wrinkled at the sides; vertex irregularly punctured and wrinkled but without transverse depression. Pronotum: sides each with 12 setiferous punctures; disc transversely wrinkled, apex and base longitudinally wrinkled and faintly punctured; sides strongly curved outwards and slightly sinuate before the basal angles which are obtuse and blunt. Elytra: faintly and irregularly impressed and finely punctured, the punctures separated by 4 or 5 times their diameters; intervals 1, 3, 5 and 7 about 1 ½ times as wide as intervals, 2, 4, 6 and 8 and more convex; intervals 1, 3, 5 and 7 are broken