Phortica (Phortica) kinabalensis Chen & Toda, 2007

Chen, Hong-Wei, Toda, Masanori J., Lakim, Maklarin B. & Mohamed, Maryati B., 2007, The Phortica Sensu Stricto (Insecta: Diptera: Drosophilidae) From Malaysia, Raffles Bulletin of Zoology 55 (1), pp. 23-41 : 35-37

Phortica (Phortica) kinabalensis Chen & Toda , new species

( Figs. 41–45 )

Diagnosis. – Aedeagal median rod submedially with slender, apically asymmetric, slightly sclerotized process ( Fig. 44 ); aedeagal basal bridge with long, sclerotized, apically pointed projection anteroventrally, and large flap bearing 2 small acute projections antero- and mediodorsally ( Fig. 44 ).

Material examined. – Holotype male (terminalia dissected), MALAYSIA: Park Headquarters, Mt. Kinabalu , Sabah, coll. M. J. Toda, 2 Oct.1999 ( KPSP) . Paratypes: MALAYSIA: Mahua, Crocker Range , Sabah, 2 males (terminalia dissected), coll. M. J. Toda, 16 Oct.1999 ( SEHU, ITBC) .

Description. – Male. Head: Frons brown on upper half, dark brown on lower half.

Thorax: Orange yellow. Scutellum with trifurcate dark brown patch, pale yellow on tip.

Wing: Hyaline.

Legs: Foreleg femur only partly brown. Midleg tibia subapically with 3-4 longer setae on anterior surface.

Abdomen: First to fifth tergites yellow; second tergite with brown patches submedially; third to fifth tergites each with medially slightly protruded, brown band on posterior margin and 1 pair of yellow patches laterally; sixth tergite nearly entirely dark except yellow medial line, with expanded lobe on lateral margin.

Male terminalia: Epandrium pubescent anteroventrally and dorsomedially, with ca. 15 setae on dorsal to posterolateral portion per side ( Fig. 41 ). Surstylus with pubescence basally and several wedge-shaped prensisetae on apical margin to inner surface ( Fig. 42 ). Additional plate between cerci and 10th sternite pubescent, medially connected to 10th sternite ( Fig. 43 ). Posterolateral lobe of hypandrium undeveloped. Paramere expanded distally; apical process with 1 sensillum; medial process with 2 teeth; proximal process pubescent ( Fig. 45 ). Vertical process of gonopods apically with 4-6 sclerotized projections per side ( Fig. 44 ). Aedeagus with 2 pairs of bridges; ventral bridge slender, apically somewhat truncate ( Fig. 44 ).

Female: Unknown.

Measurements: BL = 3.80 mm in holotype (range in 2 male paratypes: 3.68-4.10); ThL = 1.92 mm (1.72-1.88); WL = 2.80 mm (2.68-3.00); WW = 1.40 mm (1.20-1.40).

Indices: arb = 5/2-3 (4-5/2-3), avd = 0.60 (0.70), adf = 1.90 (1.80), flw = 1.60 (1.65-1.70), FW/HW = 0.38 (0.40), ch/o = 0.06 (0.06), prorb = 1.00 (1.10-1.20), rcorb = 0.40 (0.40), vb = 0.45 (0.45), dcl = 0.60 (0.60), presctl = 0.70 (0.70), sctl = 1.10 (1.10), sterno = 1.00 (0.90-0.95), orbito = 1.50 (1.45- 1.60), dcp = 0.25 (0.24-0.26), sctlp = 1.10 (1.10), C = 2.25 (2.11-2.15), 4c = 1.54 (1.67-1.73), 4v = 2.69 (3.00-3.08), 5x = 1.13 (1.13-1.14), ac = 4.00 (3.80-4.00), M = 0.69 (0.73- 0.75), C3F = 0.70 (0.68-0.70).

Etymology. – Pertaining to the type locality.

Distribution. – Malaysia (Sabah).

Remarks. – This species is similar to P. (P.) expansa in the morphology of aedeagus, but can be distinguished from it by the diagnostic characters.

Figures

Figs. 41–45. Phortica (Phortica) kinabalensis Chen & Toda, new species, male: 41, epandrium and cercus in lateral view; 42, surstylus in frontal view; 43, tenth sternite and additional plate in frontal view; 44, hypandrium, gonopod and aedeagus in lateral view; 45, paramere in lateral view.