Ichneumonopsis taiwanensis, Freidberg & Kovac & Shiao, 2017

Freidberg, Amnon, Kovac, Damir & Shiao, Shiuh-Feng, 2017, A revision of Ichneumonopsis Hardy, 1973 (Diptera: Tephritidae: Dacinae: Gastrozonini), Oriental bamboo-shoot fruit flies, European Journal of Taxonomy 317, pp. 1-23 : 19-21

publication ID	https://doi.org/ 10.5852/ejt.2017.317
DOI	https://doi.org/10.5281/zenodo.3846689
persistent identifier	https://treatment.plazi.org/id/821687F9-FFA4-6755-FDFB-86FFAD824F01
treatment provided by	Carolina
scientific name	Ichneumonopsis taiwanensis
status	sp. nov.

Treatment

Ichneumonopsis taiwanensis View in CoL sp. nov.

urn:lsid:zoobank.org:act:D6D4B9D9-4053-4035-B51F-49D7BD3AD822

Figs 1 View Fig , 4 View Figs 2–4 , 9 View Figs 7–9 , 12 View Figs 10–12 , 14 View Figs 13–17 , 19 View Figs 18–19 , 24 View Figs 22–24 , 26 View Figs 25–26 , 28, 30 View Figs 27–30

Diagnosis

This species is similar to I. burmensis in having only the forefemur spinose, differing from it primarily in having 2–3 spines (but see Legs below) posteroventrally on forefemur (2–5, usually 4 spines in I. burmensis ), and in the more extensive wing pattern, extending into the posterior part of the wing (wing pattern dimidiate and restricted to anterior half of wing in I. burmensis ). I. taiwanensis sp. nov. differs

from I. hancocki sp. nov. by the more extensive wing pattern, (dimidiate in I. hancocki sp. nov.) and by having only the forefemur spinose (all femora spinose in I. hancocki sp. nov.).

Etymology

This species is named after the country where the types were found, Taiwan.

Material examined

Holotype

TAIWAN: ♀, Nantu, Yuchi, colour trap (see Comments), 24 Apr. 2000, C.Y. Lee leg., double mounted, minutien pin on a block of foam and in good condition (most of the right antenna is missing) ( NTU).

Paratypes

TAIWAN: same collection data as holotype, but different dates and sometimes gender: 1 ♂, 2 ♀♀, 9 Jul. 2000; 1 ♀, 7 May 2000; 1 ♂, 21 May 2000 (NTU, 3 specimens; SMNHTAU, 1 specimen; SMF, 1 specimen).

Description

Only differences from I. burmensis are noted.

Head

COLOURATION. No discrete lateral facial spots present, although ptilinal suture between face and parafacial somewhat blackened, occasionally broadened into indistinct asymmetrical ventral dark spots; parafacial with barely distinct blackish spot aligned slightly ventral to base of antenna.

CHAETOTAXY. Frontal setae 1 or 2, anterior seta moderately long; posterior seta present only in one male, setula-like, barely distinguishable from adjacent setulae.

Thorax

COLOURATION. Dark lateral (notopleural) vitta mostly dark brown, slightly brownish centrally; dorsocentral vitta more narrowly interrupted at transverse suture; median vitta short, extending across transverse fissure, about as long as width of yellow gap between both dorsocentral vittae; the two yellow submedian bands united along most of their length. Pleural pattern generally as in I. burmensis , although greatly reduced both in intensity and size of dark areas, but all parts of pattern still represented by smaller black or blackish areas (a kind of transition form between dark and pale specimens of I. burmensis ): katepisternal “v”, for example, reduced into two relatively small black spots comprising apices of arms of “v”), although connecting corner of “v” distinctly yellow, but obvious.

Legs

Total number of spines and setulae on forefemur 2–6, total number of only large spines 2–5 (average 3.2). Colouration: varies between entirely yellow, often with some vaguely darker areas, to slightly darker pattern including brownish traces of femoral rings, brownish-yellow tibiae, and brownish three or more tarsomeres.

Wing

PATTERN. Similar to that of I. burmensis , although more extensive; pattern at anterior half of wing includes dark (greyish-black) spot over spur vein across cell r 1; pattern at posterior part of wing comprises mainly blackish band over distalmost section of vein M and arm of this band over crossvein DM-Cu, blackish vein Cu 1 and its immediate vicinity and less discrete blackish spot over distal half of posterodistal lobe of cell bcu; remaining posterior half of wing appearing greyish or hyaline, depending on the light.

Abdomen

TERMINALIA, MALE ( Figs 24 View Figs 22–24 , 26 View Figs 25–26 ). Digitiform prolongation of surstylus about twice as long as wide; setae on epandrium not conspicuous, shorter, paler and sparser than those on proctiger; non-sclerotized part of glans beyond cochleate sclerotization short, about as long as wide, apically with large sclerotized sclerite about 0.6 times as long as width of cochleate complex of glans.

TERMINALIA, FEMALE ( Figs 28, 30 View Figs 27–30 ). Cercal unit with slight constriction aligned with sensory setae; setae clearly larger than those of I. burmensis , about 0.25 times as long as width of aculeus at this level; system of longitudinal “canals” crowded along margin from base to tip.

Measurements (length, in mm)

Male: body: 12.4; wing: 10.9; female: body, including oviscape: 13.8–16.8; wing: 8.4–11.5; oviscape: 4.6–6.6.

Comments

This species was discovered in Taiwan by Hong-Yih Chang and treated in his dissertation ( Chang 2001). Altogether, eleven specimens were collected by C.Y. Lee in the Nantu County (ca 120°50′– 20°59′ E, 23°49′–23°66′ N, altitude 650–740 m) by using colour sticky traps. However, only six specimens were found at the Department of Entomology at the National Taiwan University. The specimens were collected near cultivated bamboo areas containing mainly Dendrocalamus latiflorus Munro (local name: Ma Bamboo), and some Phyllostachys makinoi Hayata (Makino Bamboo) and P. edulis (Carrière) J. Houzeau de Lehaie (Mao Bamboo) . Like many other species described from Taiwan ( Norrbom et al. 1999b), this species can be expected to be a Taiwan endemic.