118 WATT 
4 
10 
In lateral view dorsal surface of apicale of aedeagus distinctly concave 
(cf.Figs.79-82, 84, 93). Basale of aedeagus stout in dorsal view, not strongly 
tapered or sinuate. Usually large beetles exceeding 14mm in length and 
7.5mm in width and/or elytral costae clearly visible to naked eye or elytral 
submarginal channels absent. .-....--s:ecsscseresseecesteetnnenseessnsetennenrernnaannatensicnnganaet: 5 
In lateral view dorsal surface of apicale of aedeagus convex or flat, never 
distinctly concave. Basale of aedeagus slender (usually) or strongly tapered 
Or Sinuate in GOrSal VIEW — ....-..-csecceseeseseeeeceeeeseeeseseneentneeacceannapeceseesanenaat senses nnecnssseets 10 
Base of elytra rounded off, not represented by a sharp edge. Shoulder broadly 
rounded, not prominent (Figs.56-64). Inner angle of elytral submarginal 
channel not distinct ..........c::cceceeeeeeeseteeteeesees OPACULUS SPECIES GROUP 6 
Base of elytra represented by a sharp edge, often in the form of a raised carina. 
Shoulder narrowly rounded, moderately prominent (Fig.20). Inner angle of 
elytral submarginal channel Cistinct ............+-0-:-1rer sissies cece trent tenner 
Drees kee rreetidas Has Hesseece estas te GRANULOSUS SPECIES GROUP (part) 9 
Elytral costae clearly visible to naked eye. Elytral shoulder very broadly 
rounded, almost obsolete (Fig.57). Convex. Elytra distinctly wider than 
pronotum. Aedeagus as in Fig.82. Submarginal channel of elytra sloping 
downwards, not flat. Poor Knights Islands, North Auckland ..............-..... insularis 
Elytral costae not clearly visible to the naked eye, often obsolete. Elytral 
shoulder not as broadly rounded (Figs. 56, 58-64) .......:.::.:s----ceseeceisenenneetecnreees 7 
Elytral submarginal channels very narrow or absent. Form moderately convex, 
elongate oval. Punctation usually fine and shallow, discal pronotal and elytral 
punctures often separated by more than 2 x their own diameter 
(Figs. 84, 85). Mackenzie Basin and inland CBs iy cartamcreattieeriives impressifrons 
Elytral submarginal channels relatively broad. Form fairly flattened, broadly 
Oval (Figs. 56, 58-64) ......csscscscsssetscsesssnesssssseceresneresrensunatnesttnestssanaseanecsnscennetsceatanenss 
Apicale of aedeagus more elongate (Figs.73-81, cf. also Figs.24, 83, 86-92). 
Pronotal punctures larger and deeper, those of disc separated mostly by 
about their own diameter. North Island, excluding extreme north; South 
Island east of main divide; Stewart Island ......-......-ee cesses etree opaculus 
Large granules present on elytron, especially on lateral and hind slopes, clearly 
visible at 25 x magnification. Dorso-lateral and ventro-lateral angles of 
apicale rounded, not carinate. Macropunctures large, deep, and steep-sided, 
rarely separated by more than their own diameter on pronotum. (Figs.51, 93) 
South Marlborough and north Canterbury 2-0... seein costellus 
Granules absent from elytra. Dorso-lateral and ventrolateral angles of apicale 
carinate at base. Macropunctures smaller and less steep-sided; rarely 
separated by less than their own diameter on pronotum. Known only from 
Mt. Percival, north Canterbury ...........c:cccccseees ees eseeeeceeesesseet eres eentticntenetcesretese johnsi 
Macropunctures of pronotum and elytra large, deep and steep-sided; separated 
by less than their own diameter (Figs.20, 54). Elytral costae clearly visible to 
naked eye Banks Peninsula ...-.....0-s.:0:ssteseessonreeeeteectcctanteeneree neennaenanenetcees 
