Macroscytus australoides J.A. LIS

Macroscytus australoides J.A. LIS

(Figs 59­65)

Macroscytus australoides J.A. LIS, 1999a: 466 .

DESCRIPTION

Body 6.08­7.13 mm in length, 3.71­4.55 mm in width, from dark castaneous to blackish brown, posterior margin of pronotum slightly more yellowish brown than remaining parts of its disc.

Head with dorsal surface bearing numerous small, almost evenly spaced punctures, laterally striated; clypeus subapically with a pair of setigerous punctures bearing long hair­like setae (Fig. 60); each paraclypeus with a submarginal row of 7 setigerous punctures bearing long hair­like setae (Fig. 60); ocular index 2.48­3.03; interocellar index 7.8­9.1; length of antennal segments (in mm): 0.28­ 0.35: 0.35­0.44: 0.36­0.42: 0.43­0.51: 0.44­0.50.

Pronotal disc almost impunctate, bearing only several punctures of two types (smaller and larger), calli impunctate; discal transverse impression behind calli absent or very shallow, almost indistinct, bearing several coarse punctures and numerous wrinkles; lateral margins of pronotum with 12­15 submarginal setigerous punctures bearing long hair­like setae (Fig. 59); anterior convexity of propleuron alutaceous and impunctate, posterior convexity with a few punctures close to propleural depression, the latter with rows of well separated coarse punctures.

Scutellum densely striated and punctate.

Mesocorial disc weakly, evenly punctate; puncturation of exocorium more dense than that of mesocorium; costa separated from exocorium only in its basal two thirds, its margin with a row of 5­8 (very rarely 4) setigerous punctures bearing long hair­like setae (Fig. 59).

Femora brown or castaneous, tibiae whitish yellow or yellowish brown, tarsi yellowish brown or pale brown; male hind femur with numerous well visible denticles, subapical teeth clearly developed (Fig. 61); male hind tibia with large subbasal lobe­like denticle followed by smaller denticle and then several smaller tubercles (Fig. 61).

Abdominal sterna almost totally impunctate, except for rows of punctures paralleling segmental sutures, and a few punctures close to spiracles and trichobothria.

Male genitalia as in Figs 62­65.

TYPE DATA

Holotype male: South Australia, Coorong , S. of Meninge ( BMNH) .

MATERIAL EXAMINED

Holotype, 3 paratypes, and 14 other specimens: Australia: New South Wales, Nygan distr., 3 exx. ( UQIC, UO) ; South Australia, Underdale , 3 paratypes ( SAM, UO) ; South Australia, Along railway line Goyder Siding yo Bowmans Junctn ., 1 ex. ( SAM) ; Queensland, Brisbane , 3 exx. ( UQIC, UO) ; Queensland, Taroom District, Vine Thicket on hill, 1 ex ( QMB) ; Queensland, Taroom District, Boggomoss , 4 exx. ( QMB, UO) ; Queensland, Texas, 1 ex. ( HNHM) ; Western Australia, Barnabie , 1 ex. ( SAM) .

DISTRIBUTION

Australia.