Colocasiomyia grimaldii Zhang & Gao & Takano & Yafuso & Suwito & Meleng & Toda 2023, sp. nov.
Creators: name: Zhang, Guang
name: Gao, Jian-Jun
name: Takano, Kohei Takenaka
name: Yafuso, Masako
name: Suwito, Awit
name: Meleng, Paulus Ak
name: Toda, Masanori J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Colocasiomyia
Colocasiomyia grimaldii

description: 5) Colocasiomyia grimaldii Gao & Toda, sp. nov.
(Figs 2–12E, 14E)
Colocasiomyia sp.4 aff. nepalensis: Sultana et al., 2006: 694.
Diagnosis. Antennal arista approximately 1.6 times as long as first flagellomere (Fig. 3E). Distance between antennal scapes narrower than scape diameter (Fig. 2E 2). Acrostichal setulae in 8 rows (Fig. 6E). All legs dark grayish yellow except for mid and hind tarsomeres I–IVs grayish yellow (Fig. 14E). Cercus roundish on ventral margin (Fig. 11- 2E). Long, tube-like, membranous aedeagus ornamented with dense, stronger spinules (Fig. 11-2E). Hypogynial valves with roundish, dorsal flaps not fused to each other at distal end of basal portion (Fig. 12E).
Description (♁ and ♀). Head. Antennal, first flagellomere approximately 1.3 times as long as pedicel (Fig. 3E). Gena dark grayish brown (Fig. 14E). Supracervical setae 4–5 and postoculars 17–18 per side (Fig. 4E). Cibarial projections at anterolateral corners as long as width of anterior margin; medial sensilla in parallel rows as wide as sensilla campaniformia (Fig. 5E 2). Prementum and neighboring lateral membrane with 6–7 setae per side (Fig. 5E).
Thorax glossy, blackish brown (Fig. 14E).
Legs. Fore tarsomere I slightly shorter than II+III (Fig. 9E 1).
Abdomen. Sternites dark grayish brown.
Male terminalia. Cercus nearly entirely pubescent, with 32–34 setae.
Female terminalia. Epigynium with approximately 7 small sensilla per side near lower posterior margin (Fig. 12D 1).
Measurements (holotype /range in 5♁ and 5♀, or less if noted, paratypes, in mm): BL = 1.92/♁ 1.45–1.70, ♀ 1.65–1.88 (4♀); ThL = 0.81/♁ 0.66–0.82, ♀ 0.78–0.84; WL = 1.56/♁ 1.30–1.54, ♀ 1.46–1.61; WW = 0.74/♁ 0.60–0.72, ♀ 0.69–0.76.
Indices (holotype /range in 5♁ and 5♀, or less if noted, paratypes, in ratio): FW/HW = 0.58/0.55–0.60; ch/o = 0.40/0.39–0.46; rcorb = 0.38/0.43–0.55 (4♁ and 1♀); vb = 0.26/0.32–0.43; sctl = 0.56/0.58–0.70 (3♁ and 2♀); sctlp = 1.14/1.02–1.19; C = 1.46/1.30–1.43; 4c = 1.71/1.67–2.25; 4v = 2.94/2.52–3.58; 5x = 7.14/5.07–7.56; ac = 2.98/3.12–3.63; M = 1.25/1.14–1.64.
Holotype. ♁ (MZB), “ Cibodas, West Java, Indonesia, 12.xii.2004, K. T. Takano / ex inflorescence of Pinanga coronata ”.
Paratypes. Indonesia: 9♁, 23♀, same data as the holotype, 14 ♁, 13♀, same data as the holotype except for 24.xii.2003 (MZB, SEHU); 10 ♁, 10♀ (#05202–21), same data as the holotype except for 24.xii.2003 (KIZ).
Distribution. Indonesia (West Java).
Remarks. This species resembles C. oligochaeta sp. nov., but can be distinguished from it by the diagnostic characters.
Etymology. Patronym, in honor of Dr. David Grimaldi at the American Museum of Natural History, who made early contributions to the systematics of Colocasiomyia.
description: Published as part of Zhang, Guang, Gao, Jian-Jun, Takano, Kohei Takenaka, Yafuso, Masako, Suwito, Awit, Meleng, Paulus Ak & Toda, Masanori J., 2023, Phylogenetic classification and palm-inflorescence anthophily of the Colocasiomyia zeylanica species group (Diptera: Drosophilidae), with descriptions of five new species, pp. 201-238 in Zootaxa 5278 (2) on page 227, DOI: 10.11646/zootaxa.5278.2.1, http://zenodo.org/record/7905995