Pollenia bartaki, Rognes, Knut, 2016

Rognes, Knut, 2016, A new species of Pollenia Robineau-Desvoidy, 1830 from Jordan (Diptera: Calliphoridae: Polleniinae), Zootaxa 4067 (5), pp. 569-576 : 572-574

Pollenia bartaki sp. nov.

Figs 1–18, 22–24.

Type material. Holotype ♂ ( CULSP), labelled (1) NW Jordan, 20.v.2007 / NW of AJLUN, / 32°19.877'N 35°43.110'E / 850 m, Z. Kejval leg. [printed on white label]; (2) HOLOTYPE (m) / Pollenia / bartaki sp. nov. / K. Rognes des. 2015 [printed on red label] (Fig. 10).

Remarks. Abdomen dissected by KR. Abdominal T1–5 glued to the same card triangle as the rest of the body (Fig. 5). ST1–5 and genitalia stored in glycerol in a glass microvial on the pin, above the red holotype label. The holotype was glued to a triangular card by its right side upon reception (Fig. 5) and for this reason it was very difficult to examine (and photograph) the leg chaetotaxy and certain features of the thorax. The right hind leg was absent. The specimen appeared to have been kept in alcohol for a long time.

Etymology. The species is named in honour of my friend and colleague Miroslav Barták, who has kindly provided me with Pollenia material from my earliest days of work on this genus a long time ago, and who recently generously gave me the opportunity to work through his valuable collection of Calliphoridae and Rhiniidae mainly from the Afrotropical Region. The specific name is a noun in genitive case formed from the modern personal name of a man (ICZN 1999, Article 31.1.2.) by adding the suffix -i to the stem bartak.

Diagnosis. Separable from all its congeners by the very strongly curved surstylus in lateral view and narrow cerci in posterior view in combination with a yellow basicosta.

Description. Male. Length: about 6 mm (n = 1) (measured after dissection). Ground colour black; whole body with a thin layer of microtrichosity (“dusting”). Head. Frons at narrowest point/head width ratio: 0.04 (n = 1). Facial membrane black in lower half. A distinct, sharp facial keel. Palpus dark (difficult to observe). Setae on parafacial shorter than aristal rays. Gena invaded posteriorly by yellow vestiture in the hindmost part. Thorax. 3 postpronotal (“humeral”) setae; 1 outer and 1 inner posthumeral setae; 2 presutural and 3 postsutural acrostichal setae; 2 presutural and 3 postsutural dorsocentral setae; 1 presutural and 2 postsutural intra-alar setae; 3 supra-alar setae; 2 notopleural setae; 2 postalar setae. Scutellum with 3 strong and 1 weak marginal setae and 1 discal scutellar seta near posterior margin; scutellum about twice as wide as long. Area above metathoracic spiracle impossible to observe, so it cannot be decided whether a coxopleural streak is present or not. Prothoracic and metathoracic spiracles yellow. Lappets of metathoracic spiracle not observable. Wing. Tegula black. Basicosta yellow. Subcostal sclerite yellow, without long setulae (may not be constant). Costagium, costa and other wing veins brownishyellow. Node at junction of humeral crossvein and subcosta on underside of wing bare, without setulae. Cell r4+5 open. Second costal sector bare on underside of wing. Node at junction of R2+3 and R4+5 with small setulae on upper side and a short distance beyond. Underside of wing difficult to observe in this region. Legs. Fore tibia with 1 posteroventral seta in distal third. Mid tibia with 1 strong anterodorsal seta, 1 posterodorsal seta, 2 posterior setae (the lower one strongest and level with the single anterodorsal seta), and 1 strong ventral seta. Hind tibia with 2 (or 3?) short anteroventral setae, shorter than tibial diameter; no erect setulae present among the anteroventral setae; 3 posterodorsal and 4 anterodorsal setae. Abdomen. Vestiture on ventral side of abdomen of the same type as dorsal vestiture, not particularly thin nor more densely set than dorsally. Abdomen dorsally with a shifting pattern of microtrichosity. Genitalia. Cerci very narrow in posterior view. Upper edge straight in lateral view, though slightly bent downwards apically. Surstylus strongly curved in lateral view with long setae ventrally in basal half, the curvature mostly affecting the distal half of the surstylus. Surstylus almost straight in posterior view, and, especially on the outside, armed with densely set long setae, increasing in length proximally. Also with numerous setae on the inside of the apical region. Pregonite narrow with 4–5 long setae. Postgonite narrow with a strong basal seta and numerous sensilla distally. Aedeagus with a median hypophallic, entirely sclerotised lobe. Lateral hypophallic lobes broad, distally pointed, dentate along ventral and posterior edges, with a narrow central strengthening; part posterior to central strengthening 3–4 times width of strengthening, part anterior to it about as wide as central strengthening. Paraphallic process long, slender, proceeding distally parallel to process of the opposite side; tip of paraphallic process with 7–8 minute tubercles. Shape of sclerotisation at base of distiphallus of type II ( Rognes 1987b, 1991a). Distal opening of sperm duct wide.

Female and immature stages. Unknown.

Biology. Unknown.

Distribution. Jordan.