Phortica (Phortica) expansa Chen & Toda 2007, new species
Creators: name: Chen, Hong-Wei
name: Toda, Masanori J.
name: Lakim, Maklarin B.
name: Mohamed, Maryati B.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Phortica
Phortica expansa

description: Phortica (Phortica) expansa Chen & Toda, new species   
(Figs. 36–40)  
  Diagnosis. –  Aedeagal median rod submedially with asymmetrically bifurcated process (Fig. 40); aedeagal basal bridge laterally with large, somewhat triangular flap (Fig. 40).   
  Material examined. –  Holotype male (terminalia dissected), MALAYSIA: Park Headquarters, Mt. Kinabalu, Sabah, coll. M. J. Toda, 27 Dec.1998 (KPSP). Paratypes: 2 males, same data as the holotype except for 7 Mar.2000 and 11 Mar.2000 (SEHU, ITBC).   
  Description. –  Male. Thorax: orange brown, with black patches. Scutellum with trifurcate brown patch, pale yellow on tip.   
Wing: Slightly smoky, dark on anterior margin.  
Legs: All femora partly dark 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 black except yellow medial line, with expanded lobe on lateral margin (Fig. 36).  
Male terminalia: Epandrium pubescent anteroventrally and dorsomedially, with ca. 14 setae on dorsal to posterolateral portion per side (Fig. 37). Surstylus with pubescence basally and several wedge-shaped prensisetae on apical margin to inner surface (Fig. 38). Additional plate between cerci and 10th sternite pubescent, medially connected to 10th sternite (Fig. 39). Posterolateral lobe of hypandrium undeveloped. Paramere expanded distally, pubescent on and around proximal process; apical process with 1 sensillum; medial process with 1 sensillum and 1 tooth (Fig. 40). Vertical process of gonopods apically with ca. 3-5 sclerotized projections per side (Fig. 40). Aedeagus with 2 pairs of bridges; ventral bridge slightly expanded apically (Fig. 40).  
Female: Unknown.  
Measurements: BL = 4.18 mm in holotype (range in 2 male paratypes: 4.07-4.20); ThL = 1.88 mm (1.84-186); WL = 3.20 mm (3.13-3.20); WW = 1.32 mm (1.30-1.36).  
Indices: arb = 4-5/2-3 (4-5/2-3), avd = 0.80 (0.80), adf = 1.50 (1.30-1.50), flw = 1.40 (1.40-1.50), FW/HW = 0.45 (0.40- 0.45), ch/o = 0.06 (0.06), prorb = 1.10 (1.00-1.04), rcorb = 0.50 (0.40-0.50), vb = 0.30 (0.30-0.35), dcl = 0.60 (0.50-0.60), presctl= 0.65 (0.60-0.65), sctl = 1.00 (1.00-1.10), sterno = 0.90 (0.90-0.95), orbito = 1.45 (1.40-1.45), dcp = 0.25 (0.25), sctlp = 1.00 (1.00-1.05), C = 2.14 (2.10-2.16), 4c = 2.10 (1.91- 2.10), 4v = 3.70 (3.46-3.65), 5x = 1.22 (1.13-1.26), ac = 4.20 (4.20-4.46), M = 0.60 (0.68-0.82), C3F = 0.67 (0.70-0.76).  
  Etymology. –  From the Latin word “expansus”, referring to the distally expanded paramere.   
  Distribution.  – Malaysia (Sabah).   
  Remarks.  – This species is very similar to P. (P.) subradiata (Okada, 1977) in the paramere expanded distally, but can be distinguished from it by the aedeagal median rod (in P. subradiata, based on 3 male specimens from the type locality of Taiwan, China: aedeagal median rod subbasally with 1 pair of symmetric processes; flap of aedeagal basal bridge not so large, with 2–4 acute projections).
description: Published as part of Chen, Hong-Wei, Toda, Masanori J., Lakim, Maklarin B. & Mohamed, Maryati B., 2007, The Phortica Sensu Stricto (Insecta: Diptera: Drosophilidae) From Malaysia, pp. 23-41 in Raffles Bulletin of Zoology 55 (1) on pages 34-35, DOI: 10.5281/zenodo.5333042