(Figs. 3 D–F, 3H, 3J, 16B)

Diagnosis. Male of A. septentrionalis can be separated from A. parallelus in having sexually dimorphic punctures limited only to the antero-lateral corner of the pronotum (Fig. 3J), and relatively long parameres, about 0.17 times length of the entire tegmen. The female of A. septentrionalis has the clypeus sparsely setose or glabrous. This species is restricted to northern Queensland.

Description. Male. Body length 30-35 mm. Body sub-parallel, slightly convex on dorsum; head length about 0.7× of width; mandibles shorter than head, weakly curved towards ventral side; pronotum shorter than head, about 0.7× of head length; elytra 3.5× longer than pronotum. Antennal scape 1.2× of antennomere 3 length; interorbital width over 3× of eye length. Prosternal process 0.75× as diameter of procoxal cavity, twice as hypomeron width; mesoventral process narrower than prosternal process. Abdominal ventrite 1 moderately longer than the others, ventrite 5 rounded at apex. Metatarsomeres 1–3 length ratio as 1:0.7:0.8, tarsomere 5 shorter than 1–3 combined.

Female. Body length 30-45 mm; pronotum as long as head and slightly broader than head; elytra about 4 times of pronotum length.

Etymology. The species name is a Latin word, meaning “northern” in English, indicating its Northern Queensland distribution.

Biology information. Some specimens were caught boring in the candlenut tree (Aleurites moluccanus.)

Types. Holotype. ♂: “ 16°48’S, 145°38’E (GPS), QLD: Kuranda (335m elev.) (Top of the Range) 19 Butler Dr., 15-30 December 2003, D.C.F. Rentz | ANIC 25 -067075” (ANIC). Paratypes (7). 4 ♂♂: “Paluma N.Q., Jan 1968, at light | ANIC 25-073238” (ANIC); “Crystal Ck., Q. 23mi. SSE of Ingham, 18.58Sx146.16E, 9.xii.1968, at light, Britton and Misko | ANIC 25-073245” (ANIC); “Black light, Kareeya Power Station, Tully, N.E.QLD, 27/12/2000, S. Fearn” (QVMAG); “Black light, Kareeya Power Station, Tully, N.E.QLD, 28/12/2000, S. Fearn” (QVMAG); 3 ♀♀: “ 16°48’S, 145°38’E (GPS), QLD: Kuranda (335m elev.) (Top of the Range) 19 Butler Dr., 1-15 January 2004, D.C.F. Rentz | ANIC 25-073260” (ANIC); “ 16°48’S, 145°38’E (GPS), QLD: Kuranda (335m elev.) (Top of the Range) 19 Butler Dr., 15-29 February 2004, D.C.F. Rentz | ANIC 25-073260” (ANIC); “Black light, Kareeya Power Station, Tully, N.E.QLD, 28/12/2000, S. Fearn” (QVMAG).

Other material examined (Fig. 16B). Queensland: ANIC (2 ♂♂; 9 ♀♀): 2: Atherton, Jan. 1930, R.H. Doggrell; Cardstone, Feb. 1962, K.H.; Cardstone, Feb. 1963, G.B.; Green Forest Rd., Kuranda, Dec. 2013, J. Hasenpusch; Kirrama Range, Nov. 1968, W. and A.E.Y. Muir; Lake Placid, Cairns, Jan. 1968, J.G. Brooks; Mount Aunt, 10km SSW of Mareeba, Mar. 1988, D.C.F. Rentz; Polly Ck., Garradunga, Dec. 2014, J. Hasenpusch; Polly Ck., Garradunga, Feb. 2014, J. Hasenpusch; Smithfield, Cairns, Dec. 2013, J. Hasenpusch; MV (1 ♂): [no data]; OAI (1 ♀): Atherton, Feb. 1975, G.R. Brown; QVMAG (2 ♂♂; 2 ♀♀): 3: Kareeya Power Station, Tully, Dec. 2000, S. Fearn; Kareeya Power Station, Tully, Nev. 2001, S. Fearn.

Molecular data. BioSample ID: SAMN11080863 (Holotype).