Pristoderus elongatus (Blackburn, 1891) comb. n.

(Figs 2 b, 4b, 6b, 8b)

Sparactus elongatus Blackburn, 1891: 116 .

Types. Lectotype of elongatus: South Australia, Port Lincoln District [Ga: 34.724S 135.855E] (BMNH, here designated).

Other specimens examined. Australia (1, SAMA) .

New South Wales: (1, ANIC); Blue Mts [Ga: 33.665S 150.285E] (1, QMBA); Blue Mts, Blackburn [Ga: 33.665S 150.285E] (1, SAMA); Dorrigo, W. Heron [Ga: 30.332S 152.718E] (1, ANIC); Eccleston, iii.21, Xanthorrhoea, H.J. Carter [- 32.249S 151.485E] (2, NMV); Greta, 25.xi.1951, J. Sedlacek [Ga: 32.682S 151.393E] (1, BPBM); Hornsby, C. Gibbons [Ga: 33.702S 151.097E] (2, AM); Mt Irvine, i.05, H.J. Carter [Ga: 33.490S 150.451E] (1, ANIC); Mt Irvine, 20.iv.22, H.J. Carter [Ga: 33.490S 150.451E] (3, NMV); The Kurrajong, Blue Mts, in grass-tree, J. Armstrong [Ga: 30.083S 150.900E] (1, QMBA; 1, ANIC); Muswellbrook, E.W. Ferguson coll. [Ga: 32.265S 150.885E] (1, ANIC); Paterson, C. Oke [Ga: 32.597S 151.600E] (2, NMV); Sydney, E.W. Ferguson coll. [Ga: 33.865S 151.210E] (1, ANIC); Sydney, ix.02, Helms coll. [Ga: 33.865S 151.210E] (1, BPBM); Sydney, C. Gibbons [Ga: 33.865S 151.210E] (1, ANIC); Sydney, Lea [Ga: 33.865S 151.210E] (1, WADA); Wild Cattle Cr. State Forest Platypus Flat, 16.xi.1982, J. Doyen [Ga: 30.249S 152.751E] (1, ANIC).

Queensland: National Park, Lea [Ga: 28.256S 153.134E] (1, QMBA).

South Australia: Deep Crk. Cons. Pk 138 St. 16' 35 St 37.5', 19-20.iii.1981, E.G. Matthews & J.A. Forrest [Ga: 35.623S 138.272E] (2, SAMA); Kangaroo I., Xanthorrhoea, Lea [Ga: 35.762S 137.619E] (11, SAMA); Kangaroo Is., i.1956 [Ga: 35.762S 137.619E] (1, SAMA); Kangaroo Is., Mi.S.Mt. Taylor, D. Seton, 31.xii.1965, under gum bark 2,5, N. McFarland [Ga: 35.762S 137.619E] (1, SAMA); Mt Lofty Rgs, S.H. Curnow [- 34.974S 138.709E] (3, SAMA); Mt Painter, Finders Range, H.G. Stokes [Ga: 30.230S 139.359E] (1, SAMA); 33 miles NW of Port Lincoln, 3.i.1967, M.S. Upton [GE: 34.400S 135.502E] (2, ANIC); Port Lincoln, 12.viii.50, C. Oke [Ga: 34.724S 135.855E] (1, NMV); Port Lincoln, 14.viii.50, C. Oke [Ga: 34.724S 135.855E] (2, NMV); Quorn, Blackburn [Ga: 32.346S 138.041E] (3, SAMA).

Tasmania: A. Simson (1, SAMA).

Western Australia: 20.iv.22, H.J. Carter (1, NMV); 31.47S 116.23E, Baker's Hill, 5 mi W of Northam, 6.iv.1969, CSIRO light trap (1, ANIC); Deep Dene, Karridale, 10.ii.1963, L.M. O'Halloran [Ga: 34.201S 115.100E] (1, ANIC); 34.884S 116.546E, D'Entrecasteaux N.P., 20 km NW Walpole, 86m, Pyrethrum, 8 Sep 0 9, G.B. Monteith & F. Turco, 18575 (1, QMBA ethanol coll.); King George Sound [Ga: 35.049S 117.934E] (2, ANIC; 2, AM); South Perth, H.M. Giles, 4.3.0 3, 1976 [GE: 32.325S 115.906E] (1, WADA); 34.395S 117.883E, Stirling Ra. N.P., 25 km NE Kendenup, 267m, Pyrethrum, 7 Sep 0 9, Corymbia, G.B. Monteith & F. Turco, 18569 (2, QMBA ethanol coll.); Stirling Ra., Mt. Toolbrunup, 7 Dec 1970, mv lamp, G. A. Holloway [Ga: 34.384S 118.049E] (1, AM); Swan R., J. Clark [Ga: 32.055S 115.735E] (1, NMV); Swan R., Lea [Ga: 32.055S 115.735E] (3, SAMA); Swan R., Helms [Ga: 32.055S 115.735E] (3, BPBM).

Diagnosis. This species shares with P. occidentalis and P. queenslandicus the pronotum widest near middle, weakly narrowing posteriorly and anteriorly. It is distinct by having a highly raised supraorbital carina with straight or only weakly sinuate margins and low tubercles on 3rd, 5th and 7th elytral intervals.

Redescription. Body length: 7.4–11.0 mm.

Body flattened, elongate (ratio max length/max width: 2.75–2.96); colour uniformly dark brown; body vestiture consisting of very short, recumbent dark setae, denser on elytral tubercles; setae more erect and longer on antennae.

Head transverse; supraorbital carina slightly raised, sinuate; supra-antennal carina not raised and edge entire, not indented; eyes protruding with short, squamiform interfacetal setae; angulate protrusion between antennal insertion and eye, visible in lateral view; antennal insertion ventral, just below the edge of supra-antennal carina; antennae 11-segmented with a distinct 3-segmented club; antennomeres I–III subcylindrical, increasingly narrower from I to III; III distinctly longer than II; IV–VIII very short and simple; IX–XI transverse to form a rather loose club.

Pronotum transverse (pronotal length/width: 0.67–0.79), slightly narrower than elytra, without prominent median process; margins smooth; antero-lateral portion with one lobe angulated, directed anteriorly and only weakly wider than postero-lateral; sculpture of pronotal disc as in Fig. 2 b.

Elytra about twice as long as wide (elytral length/width: 1.87–2), with lateral margins straight and smooth; low and short tubercles on 3rd, 5th and 7th intervals, all of about the same size.

Distribution and habitat occurrence. SW Western Australia, South Australia, Tasmania (?), New South Wales and SE Queensland (Fig. 10 b); open forest.

The only record from Tasmania is an old specimen with no detailed locality information (SAMA) and it is herein considered doubtful because no other record from the same area is available and the specimen may have been mislabeled.