Loewia papei Cerretti, Giudice & O'Hara, 2014, sp. nov.
Creators: name: Cerretti, Pierfilippo
name: Giudice, Giuseppe Lo
name: O'Hara, James E.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Loewia
Loewia papei

description: Loewia papei sp. nov.
Figs 1 A–G, 2C, 2F, 2G
Type material. Holotype male: Turkey—Isparta prov. / nr. Kovada Gölü, 1010 m / 37°36'43.65''N 30°51'48.38''E / 3.vi.2011, Pape & Whitmore [MZUR]. Paratypes: 3 males, same data as holotype [MZUR, SMNS, ZMUC]; 1 male, Turkey—Antalya prov. / 9km NNW Akseki 1660 m / 37°7'22.64''N 31°45'37.90''E / 31.v.2011, Pape & Whitmore [PC collection at MZUR]; 1 female, Turkey—Isparta prov. / 2km SSE Aşağıgökdere / 480 m / 4.vi.2011, Pape & Whitmore [PC collection at MZUR].
Etymology. Dedicated to the Danish dipterist and outstanding systematist, Thomas Pape, who collected the type specimens.
Diagnosis. Loewia papei is strongly characterized by the presence of a long M2 appendix that is about 2−3 times as long as crossvein r-m (Fig. 1 G). This state is unique among Loewia species (see Fig. 1 H), but the species is clearly a member of the Loewia clade and we therefore extend the generic limits of the genus to include it. The MOSCHweb interactive key data matrix (character 74) and online key (Cerretti et al. 2012) have been modified accordingly.
Loewia papei is distinguishable from its congeners also by the following combination of characters: (i) male compound eye covered with dense, long ommatrichia; (ii) parafacial entirely bare; (iii) three or four katepisternal setae; (iv) three basal postpronotal setae arranged in a line; (v) two well-developed anepimeral setae; (vi) two posthumeral setae; (vii) presutural intra-alar seta present; (viii) halter blackish-brown; (ix) petiole of wing cell r4+5 about 1/5 of postangular section of vein M; (x) male with a well-developed epiphallus, and (xi) male with a welldeveloped extension of dorsal sclerite of distiphallus.
Description. Body length: 9−11 mm.
Male (Figs 1 A, 1C, 1E, 1G, 2C, 2F, 2G):
Colouration (Fig. 1 A–G): Head black, covered with weak, grey, microtomentum. Antenna mainly black or dark brown except distal end of pedicel and inner proximal portion of postpedicel which are light brown to yellowish. Thorax (including legs and scutellum) shiny black; presutural portion of scutum feebly covered with grey microtomentum, except on the four longitudinal vittae. Tegula and basicosta black. Wing membrane distinctly infuscated anterobasally (Fig. 1 G). Halter blackish-brown. Abdomen entirely black, evenly covered with weak and virtually undetectable microtomentum.
Head (Fig. 1 A–F): Compound eye covered with long ommatrichia, which are distinctly longer that three eye facets. Ocelli present; ocellar setae well developed, proclinate. Frons at its narrowest point 0.11−0.14 times as wide as compound eye in dorsal view. Outer vertical setae may or may not be differentiated from postocular setae. Frontal setae descending to level between middle and lower margin of pedicel. Fronto-orbital plate with several proclinate setulae between frontal row and compound eye margin. Upper reclinate orbital setae not developed. Proclinate orbital setae absent. Parafacial entirely bare below lower frontal seta. Parafacial at its narrowest point about as wide as width of postpedicel at midlength. Parafacial not narrowing ventrally. Facial ridge concave with robust, recumbent setulae on lower third. Vibrissa arising at about level of lower facial margin. Face and lower facial margin not protruded forward and not visible in lateral view. Genal dilation very well developed and covered with robust black setulae. Postgena and lower occiput with mostly pale setulae. Upper half of occiput with 1−3 irregular rows of black setulae behind postocular row. Gena about 0.3−0.4 times as high as compound eye in lateral view. Antenna about as long as height of gena, or slightly longer. Postpedicel about 1.3–1.5 times as long as pedicel. Postpedicel distally rounded or at most slanted anteroapically. Arista apparently bare, thickened approximately on its basal third. First aristomere distinctly shorter than wide; second aristomere about as long as wide (at most slightly longer). Prementum 1.5−2.0 times as long as wide. Palpus subcylindrical or very slightly clavate, with long setulae on distal third.
Thorax: Prosternum and proepisternum bare. Postpronotum with four setae, the three basal ones arranged in a line. Scutum with two posthumeral setae; 3−4 + 3−4 acrostichal setae; 3 + 4−5 dorsocentral setae; 1 + 3 intra-alar setae (first postsutural sometimes hair-like); three strong postsutural supra-alar setae (first postsutural supra-alar seta at least as long and robust as posterior notopleural seta and distinctly longer than first postsutural dorsocentral seta) interspersed with 0−3 shorter setae along the same longitudinal line; two notopleural setae and three postalar setae. Three or four katepisternal setae. Katepimeron with long setae on anterior third to half. Two anepimeral setae. Scutellum with 4–6 pairs of marginal setae: 1 basal; 1−3 (1 only in holotype) laterals, 1 subapical, 1 crossed and horizontal apicals. Lateral scutellar seta(e) about as long and robust as subapical seta. Dorsal surface of scutellum covered with long and sub-erect setulae. Anatergite bare below lower calypter. Upper and lower calypters unmodified. Second costal sector bare ventrally. Costal spine virtually undifferentiated from costal setulae. Vein R4+5 with only a few setulae at base, not extending beyond basal third. Bend of vein M at a right angle, with a long M2 appendix. M2 appendix about 2.3−2.5 times as long as crossvein r-m, and about 3/4 as long as sector of M between crossvein dm-cu and bend of M (Fig. 1 G). Sector of M between r-m and dm-cu 2.5−2.8 times as long as sector between dm-cu and bend of M. Cell r4+5 closed and petiolate; petiole about 1/5 of postangular section of M (Fig. 1 G). Preapical anterodorsal seta of fore tibia as long as or longer than preapical dorsal seta. Mid tibia with 4−5 anterodorsal setae. Hind tibia with 2–3 dorsal preapical setae (often asymmetrical with 2 on one side and 3 on the other). Preapical posteroventral seta of hind tibia about as long as preapical anteroventral seta. Anterodorsal setae on hind tibia irregular in length and thickness. Posterodorsal margin of hind coxa bare.
Abdomen (Fig. 1 A–D): Mid-dorsal depression on syntergite 1+2 extending back to hind margin of segment. Marginal setae on syntergite 1+2 present or absent. Tergite 3 with 1 pair of median marginal setae. Tergite 4 with a row of marginal setae. Tergites 3 and 4 each with several median discal setae irregularly dispersed mid-dorsally. General setulae on tergite 3 and 4 recumbent. Tergite 5 with a row of marginal and discal setae, about 0.8 times as long as tergite 4 measured at mid-length. General setae on tergite 5 more or less erect. Sternites 3 and 4 not covered by lateroventral edges of corresponding tergites.
Terminalia (Fig. 2 C, 2F, 2G): Tergite 6 ribbon-like and firmly fused with segment 7. Syntergite 7 + 8 large and convex. Sternite 6 asymmetrical and right side connection to segment 7 membranous. Sternite 5 (Fig. 2 G) with anterior margin almost straight; posterior margin with a deep median cleft submedially bearing finger-like processes. Membranous transverse band on sternite 5 reduced to a median spot. Epandrium short and convex. Anterior epandrial process scarcely developed. Lateral epandrial lobe moderately developed. Cerci medially fused and suture between them virtually indistinct (Fig. 1 C). Cerci in posterior view sub-triangular and not abruptly narrowing at midlength (Fig. 1 C). Surstylus narrow, more or less lobe-like in lateral view, not fused with epandrium; surstylus with fine setulae only. Processus longi rod-shaped. Hypandrial arms fused posteromedially, entirely encircling base of phallus. Pregonite well-developed, moderately hook-shaped and provided with fine setulae (Fig. 1 F). Postgonite well-developed, hook-shaped (Fig. 1 F). Intermedium barely distinct. Ejaculatory apodeme present. Basal processes of basiphallus present. Epiphallus well-developed and arising dorsomedially (Fig. 1 F). Ventral wall of distiphallus concave. Lateroventral region of distiphallus membranous. Medioventral ridge (Ml, see Tschorsnig 1985) of distiphallus well-developed (Fig. 1 F). Extension of dorsal sclerite of distiphallus well-developed (Fig. 1 F).
Female (Fig. 1 B, 1D, 1F) differs from male as follows:
Colouration: Abdomen shiny black.
Head: Compound eye with only scattered ommatrichia that are not longer than three eye facets (2.0−2.5 times). Frons at its narrowest point 1.4 times as wide as compound eye in dorsal view (Fig. 1 D). Inner and outer vertical setae both well-developed; inner vertical pair sub-parallel. Three proclinate orbital setae (Fig. 1 F). Two lateroclinate upper orbital setae.
Abdomen: General setae on tergites 3–5 recumbent and shorter that those of male (Fig. 1 B).
description: Published as part of Cerretti, Pierfilippo, Giudice, Giuseppe Lo & O'Hara, James E., 2014, A new Loewia Egger (Diptera: Tachinidae) from Turkey, with taxonomic and nomenclatural remarks on congeners, pp. 450-460 in Zootaxa 3754 (4) on pages 453-457, DOI: 10.11646/zootaxa.3754.4.6, http://zenodo.org/record/224770