Austrotinodes bibu, DI Cartwright, 2009

Cartwright, David I., 2009, Austrotinodes Schmid, a South and Central American caddisfly genus, newly recorded in Australia, with the description of new species (Trichoptera: Ecnomidae), Zootaxa 2142 (1), pp. 1-19 : 15

Austrotinodes bibu sp. nov.

Figs 25–27

Diagnosis. Austrotinodes bibu can be separated from other group members as the dorso-basal processes near base of the inferior appendages (phallic guides) are relatively straight, and the inferior appendages are slender, with length about 4 times width. This species is somewhat atypical of this group and shares some of the characters of the A. varus and A. yalga groups.

Description. Head, body and wings brown; wings similar to A. yalga ( Fig. 14 ). Forewing length about 3.1–3.3 times width: male 5.3 mm. Forewing fork 2 long, with footstalk, footstalk length about twice length of cross-vein r-m, length fork about same length as fork 3; fork 3 long, length about 1.9 times length footstalk, footstalk length about 2.8 times length cross-vein m. Hindwing length about 3 times width; fork 2 footstalk length about 1.7 times length cross-vein r-m, fork length about same length of fork 3.

Male. Tergum X membranous with a pair of small mesal processes ( Fig. 27 ). Superior appendages in lateral view, tapered gradually apically, length about 2.5 times width, with pair of short ventral processes with short apical hairs ( Fig. 25 ); in dorsal view, robust, length about 2 times width, with small subapico-mesal process ( Fig. 27 ). Phallus robust, generally tube-like, with embedded pair of long spines; with a pair of straight, slender processes (phallic guides) arising from near the base of the inferior appendages ( Fig. 25 ). Inferior appendages in ventral view, slender, paired processes, length about 4 times width, bases widely separated ( Fig. 26 ); in lateral view, length about twice width, with pointed apex ( Fig. 25 ).

Female. Unknown.

Holotype male (specimen CT-441 figured): New South Wales, Gloucester Tops (about 32°03'S, 151°25'E), el. 1280 m, 4–30 Dec 1988, malaise, D. Bickel ( NMV, T- 20372).

Etymology. Bibu - New South Wales Aboriginal word for mountain (type locality- Gloucester Tops).

Remarks. Known from only one male specimen recorded from the type locality in north-eastern New South Wales (latitude 32°03’S).

Figures

FIGURES 25–30. Austrotinodes spp. Male genitalia in lateral, ventral and dorsal views. 25–27: Austrotinodes bibu sp. nov. 28–30: Austrotinodes camurus sp. nov.

FIGURES 8–15. Austrotinodes spp. 8–10: Austrotinodes bifurcatus sp. nov. male genitalia in lateral, ventral and dorsal views. 11–13: Austrotinodes theischingeri sp. nov. male genitalia in lateral, ventral and dorsal views. 14–15: Austrotinodes yalga sp. nov. 14: Forewing and hindwing. 15: Head and thorax, dorsal view.