8 (1) Posterior coxa with a large puncture or pit near the posterior outer angle; the 7th elytral interval broken into six or more short lengths by the depressions in which the setiferous punctures are set; the resulting catenulate appearance visible to the naked eye 9 Posterior coxa without a puncture in the posterior half; the 7th elytral interval not broken into short lengths by the setiferous depressions 10 9 (8) The third elytral interval with one or more setiferous punctures in the basal half; vertex of the head and the anterior and posterior margins of the pronotum closely punctured; intervals 3, 5 and 7 broken into short lengths or bullae by the larger depressions of the setiferous punctures. 14. bullatum Broun The 3rd elytral interval without setiferous punctures in the basal half; vertex of the head, anterior and posterior margins of the pronotum not, or only sparingly, punctured; intervals 3 and 5 appear continuous to the naked eye (Fig. 5) 15. litoreum Broun 10 (8) Disc of the pronotum sometimes transversely wrinkled, but not, or only faintly and very sparsely, punctured; head with no punctures anterior to the level of the front margin of the eyes; clypeus never punctured (Fig. 88) 16. rectolineatum Castelnau Disc of the pronotum strongly punctured, sometimes wrinkled; head strongly punctured, the punctures extending on to the clypeus 11 11 (10) Head and pronotum coarsely punctured and strongly wrinkled (Fig. 89) 17. sculpturatum Blanchard Head and pronotum coarsely punctured, but only faintly wrinkled (Fig. 90) var. puncticolle Broun 7. Mecodema lewisi* Broun 1908, A., (8), II, p. 337. Figs. 42, 82. Length: 34–36 mm. Head: vertex with only a slight depression, marked by a few obsolescent punctures; the lateral clypeal punctures bearing two setae and the supraorbital punctures four setae; mentum with two setiferous punctures; submentum with three on each side. Pronotum: ratio 1·0/1·70/1·50/1·35, rather straight and parallel sided in the anterior half; base and apex straighter than in other species; each side with 9–11 setiferous punctures; surface faintly wrinkled. Elytra: intervals 1, 3, 5, 7 and 9 less than half as wide as the alternate intervals, just visible to the naked eye; intervals 2, 4, 6 and 8 each marked by about four irregular rows of obsolescent punctures, the punctures often connected by wrinkles, especially in the outer intervals; colour reddish, especially at the sides. Microsculpture: faint, isodiametric on the whole upper surface. Ventral surface: prosternum and proepisterna unpunctured; mesepisterna with about 5 large shallow punctures. Male genitalia with both parameres setiferous. South Island. Canterbury: Broken River (tributary of Waimakariri River), holotype ♂, paratype, and 1 ex. 8. Mecodema costipenne* Broun 1914, B., ii, p. 82; Hudson, N., p. 32. Fig. 83. Length: 25–33 mm. Head: vertex coarsely punctured. Pronotum: with sides curved outwards from apex to base without