Goera jolanda, Armitage & Arefina-Armitage, 2011

Armitage & Arefina-Armitage, Tatiana I., 2011, Three new species of Goera Stephens (Trichoptera: Goeridae) from Sulawesi, Indonesia, Insecta Mundi 2011 (186), pp. 1-10 : 4-6

Goera jolanda sp. n.

Fig. 2 , 13-18

Diagnosis. This species is similar to Goera skiasma , G. neboissi , and G. higleri . It differs by the rod-like ventrolateral process of tergum X; by characters of the mesal process of the inferior appendage, including the dorsomesal claw-like projection, the proboscis-like apex in ventral view, and the long subbasal projection.

Adult. Length of forewing: male – 6.6-6.9 mm. Body and wings (in alcohol) light yellowish brown. Sternite VI of holotype male with asymmetrical arrangement of 5 spines ( Fig. 18 ); paratype male with 5 spines symmetrically arranged. Sternite V lacks spines. Erectile lobe of male maxillary palp pale-yellowish, narrow basally and expanded apically, with tapered projection located at base, about half the length of lobe in unexpanded condition; projection covered with light yellow setae and scales anteriorly and chocolate-brown scales posteriorly ( Fig. 2 ).

Male genitalia ( Fig. 13-18 ). Segment IX nearly vertical, in lateral view anterior margin somewhat angular and medially produced anteriorly. Preanal appendages elongate, about 2.5 times shorter than ventrolateral process of tergum X. Median dorsal process of tergum X absent. Ventrolateral process of tergum X rod-like with acute apex, slightly shorter than inferior appendage in lateral view; in dorsal view nearly parallel entire length, with apical portions bent mesad; a pair of small, slightly sclerotized rounded lobes with a single subapical seta located between ventrolateral processes at base. Basal segment of inferior appendage nearly 1.6 times as high as wide in lateral view. Distal segment of inferior appendage nearly triangular, with rounded apical portion; ventral margin slightly concave. In lateral view, mesal process of inferior appendage long, evenly tapered to apex, bearing short, fingerlike lobe dorsomesally, and having elongate subbasal projection; in ventral view, apex of mesal process proboscis-like, and subbasal projection with irregular edges. Phallus long and tubular, slightly bent posteroventrad in lateral view; in dorsal view, slightly bulbous basally and evenly expanding posterad, with membranous apical portion; parameres absent.

Immature stages and female. Unknown.

Holotype male: INDONESIA, Sulawesi, Tenggara , Peg. Kabaena, 1 km S Tangkeno, 550 m, 9 November 1989, light, R. de Jong and J. Huisman, RMNH JS 8943 . Paratype: 1 male, same data as holotype.

Etymology. This species is named for Dr. Jolanda Huisman as a tribute to her extensive field survey efforts in Indonesia and her dedication to caddisfly taxonomy.

Figures

Figures 1-3. Left maxillary palpi, lateral. 1) Goera neboissi sp. n. 2) Goera jolanda sp. n. 3) Goera higleri sp. n.

Figures 13-18. Goera jolanda sp. n., male genitalia. 13) Lateral. 14) Dorsal. 15) Ventral. 16) Phallus, lateral. 17) Phallus, dorsal. 18) Processes of sternum VI.