Bicellaria ingrata Collin

Barták, Miroslav, Plant, Adrian & Kubík, Štěpán, 2013, Species of Bicellaria (Diptera: Hybotidae) from Asia, Zootaxa 3710 (3), pp. 233-256 : 242-243

Bicellaria ingrata Collin

( Figs 13, 14 )

Bicellaria spuria ingrata Collin, 1960: 393 .

Identification of syntypes. Bicellaria spuria ingrata was described from an unknown number of specimens from “Judean Hills on 14.i.31, and in various other months in the Coastal Plain, Galilee, Jerusalem, and the Jordan Valley”. Syntypes of the species could not be found in the British Museum (Erica McAlister, pers. comm.) or in the Oxford University Museum (Amoret Spooner, pers. comm.). In Tel Aviv University Museum there are altogether 32 specimens collected before date of original description (1960). Altogether 17 of them are provided with a circular label with Collin´s handwritten identification label “ B. spuria ingrata det. Coll. 58” originating not only from localities mentioned in the original description. These labels are under at least several specimens from all localities mentioned in the original description except “ Jordan Valley” (all specimens are without this label). For the same reason as mentioned under B. femorata , we identified as syntypes only those specimens from localities mentioned in original description to which Collin’s handwritten circular identification label is attached and all were labelled: “ Syntype Bicellaria spuria ingrata rev. Barták 2013”. They are as follows: one specimen without abdomen labelled: “Kir Anavim [= Qiryat 'Anavim] Judean Hills Palestine O. Theodor 1.ii.31 / COM INST. ENT COLL No.12611 / B. spuria ingrata det. Coll. 58”, two males (one dissected) with the same labels, one specimen (without abdomen) with the same labels (except 11.4.31), one female with the same labels (except 2.i.31) and an additional label “BK VI 11 ”, one female with the same labels except “BK VII 10 ” (14.i.31) and “♀ type ” on identification label, one male with the same labels except “BK VII 22 ” and “♂ type ” on identification label, one female with the same labels except “BK VII 5 ” (14.i.31), one female with labels “Jerusalem [=Yerushalayim] Palestine O. Theodor / COM INST. ENT COLL No.12611 / B. spuria ingrata det. Coll. 58”, one male labelled “Beth Hakerem Jerusalem Palestina [=Yerushalayim, Bet haKerem] O. Theodor 1. 4. 50 / COM INST. ENT COLL No.12611 / B. spuria ingrata det. Coll. 58”, two males and one female (on one pin, re-prepared because originally they were drawn in drops of dark glue) labelled “Ben Shemen Coastal Plain Palestine O. Theodor 22. 2. 24 / COM INST. ENT COLL No.12611 / B. spuria ingrata det. Coll. 58”, one specimen (without abdomen) labelled “MJ V 33 / Mikoe [= Miqwe Yisra`el] Israel Coastal Plain O. Theodor 28. 12. 30 / COM INST. ENT COLL No.12611 / B. spuria ingrata det. Coll. 58”, one male labelled “En VI 30 / Ein Churod [= 'En Harod] Galilee Palestina O. Theodor / COM INST. ENT COLL No.12611 / B. spuria ingrata det. Coll. 58”. We decided not to select a lectotype because all specimens are conspecific and we would like to leave free hands to further reviser of the difficult complex of species around B. spuria (see also Barták & Kubík 2013) after more materials are collected.

Additional material examined (93♂, 88♀, 2 exx). Israel: 1♂, 1♀, Kir Anavim [= Qiryat 'Anavim], 14.i.1931, Judean Hills, Palestine, O. Theodor; 1♂, 1♀, Jerusalem [=Yerushalayim], O. Theodor; 5♂, 1♀, same locality, 2.i.1931; 2♂, same locality, 1.ii.1931; 1♀, Rehovot, 15.ii. 1934; 8♂, 7♀, Antipatris, 21.i.1986, Y. Nussbaum; 5♂, 7♀, 2 exx, Horvat Nappah, 20.xii.1973, A. Freidberg—( TAU); 2♂, 2♀, same data—(CULSP); 3♂, 3♀, same locality, A. Freidberg—( TAU); 10♂, 7♀, Rosh ha'Ayin, 31.xii.1986, I. Nussbaum—( TAU); 1♂, 1♀, same data—(CULSP); 2♂, Latrun, 6.ii.1975, F. Kaplan; 1♀, same locality, 24.xii.1974, A. Freidberg; 2♂, 3♀, 1ex, Montfort, 8.i.1975, A. Freidberg; 2♀, same locality, 10.iii.1981, F. Kaplan; 1♂, same locality, 17.iii.1983, A. Freidberg; 1♂, 4♀, Yavne, 24.xii.1972, A. Freidberg; 6♂, 3♀, 1 ex, Ashdod, 1.i.1975, A. Freidberg; 2♂, 2♀, 1 ex, Tel Aviv, 7.i.1975, A. Freidberg or F. Kaplan; 2♂, 1♀, same locality, 15.xii.1974, A. Freidberg; 1♂, same locality, 24.i.1968, Kugler; 1♀, same locality, 9.i.1952; 1♀, same locality, 8.ii.1952; 3♀, Jordan Valley, 14.ii.1942; 5♂, 6♀, Kefar Szold, 2.i.1973, M. Kaplan; 2♀, Avivim, 5.ii.1987, A. Freidberg—( TAU); 1♀, same data—(CULSP); 2♂, Carmel, 14.ii.1976, A. Freidberg; 2♂, 5♀, Allonim, 17.ii.1973, A. Freidberg; 1♀, 1 ex, Haifa, 17.ii.1973, A. Freidberg—( TAU); 1♂, same data—(CULSP); 1♂, 1♀, Nahal Poleg, 5.ii.1974, A. Freidberg; 1♂, same locality, 6.ii.1973, A. Frediberg; 1 ex, same locality, 14.i.1975, A. Freidberg; 1♂, 2♀, Haspin, 18.xii.1983, Y. Nussbaum— ( TAU); 1♀, same data—(CULSP); 6♂, Yeroham, 3.ii.1981, F. Kaplan or A. Freidberg; 1♂, 1♀, Merom Golan, 2.xii. (?), Y. Zvik; 1♀, K. Tuate [= Horvat Tata], 3.iii.1982, Y. Nussbaum; 1♂, S. Revivim, 12.iii.1974, D. Furth; 1♂, 'En Mor, 3.ii.1981, A. Freidberg; 1♀, Qiryat Ono, 5.ii.1982, Y. Zvik; 1♂, Hulda, 4.ii.1976, A. Freidberg; 1♂, 1 ex, Central part of Nahal Tirza, 20.ii.1974, A. Freidberg; 1♂, Zafririm, 18.xi.1983, Y. Nussbaum; 1♀, Yagur, 5.ii.1974, A. Freidberg; 1♀, Nahal 'Iyyon Nature Reserve, HaTanur Waterfall, 6.iii.1985, A. Freidberg; 1♂, Panyas, 16.i.1979, D. Furth; 1♀, Bet Yehoshua', 12.i.1972, M. Kaplan; 1♂, Nahal Oren, 5.xi.1977, D. Furth; 1♂, Devira, 16.i.1975, M. Kaplan; 1♀, Nahal Yehudiya Nature Reserve Qusabiya, 30.xii.1983, Y. Nussbaum; 1 ex, Har Meron, 9.iv.1977, A. Freidberg; 1♂, 2♀, Migdal Afeq, 4.i.1982; 5♂, 3♀, same locality, 13.i.1982; 4♂, 4♀, Rosh ha'Ayin, 18.i.1981 —( TAU); Lebanon: 1♀, south, Qouzah, 19.ii.1987, Y. Nusbaum—( TAU).

Diagnosis. Bicellaria ingrata is very similar to B. spuria . The main differential characters are as follows: face broader than in B. spuria (usually more than 0.05 mm, diameter of 4–5 facets), prescutellar depression lighter than disc of scutum, usually more than 10 setae in intrahumeral and posthumeral areas, median extensions of postgonites saw-toothed ventrally (see also remarks). Females belonging to the complex of species around B. spuria are difficult to identify (see the key).

Redescription. Male. Head blackish-brown, brownish-grey microtrichose, black setose. Eyes meet on frons, facets in dorsal half much larger than in ventral half, about 15–18 facets in line of contiguity of eyes. Two pairs of ocellar setae, long (anterior) and shorter (posterior). Occiput with moderately long and rather coarse black setae. Face almost parallel-sided 0.05–0.07 mm broad at narrowest point. Clypeus slightly paler grey microtrichose. Palpus short, brown, with 2–3 setae. Labrum short, brown, polished. Antenna black, 2nd segment short setose (longest setae about 0.08 mm); 3rd segment without elongate dorsal setae; ratio of broad part of segment 3: narrow part of segment 3: arista (at 0.01 mm resolution) = 12–18: 3–5: 17–21. Thorax blackish-brown, microtrichose, mesoscutum brownish grey microtrichose in dorsal view, scutellum and prescutellar area differently microtrichose than other parts of mesoscutum, appearing light grey, light area reaches posterior acrostichals and dorsocentrals. All thoracic setae black. Chaetotaxy: 8–11 biserial long acrostichals (about 0.15 mm long in front of suture); 7–12 uniserial dorsocentrals as long as or slightly longer than acrostichals; some 11–16 setae in intrahumeral and posthumeral areas; 1 long and 2 shorter postpronotals; notopleuron with 4–6 setae arranged in irregular row; 1 supraalar- and a row of 2–5 prealars; 1 long postalar; 2–3 pairs of scutellars. Legs including coxae blackish-brown, microtrichose and black setose. Fore femur with sparse rows of anteroventrals and posteroventrals half as long as depth of femur. Fore tibia with 2 posterodorsals slightly longer than depth of tibia, remining setae as long as depth of tibia, posteroventrals as long as depth of tibia or longer in basal third but shorter in apical part, pilosity absent or very short. Mid femur with row of anteroventrals more than one third as long as depth of femur (even in middle of row) and posteroventrals slightly longer than depth of femur. Mid tibia with 2–3 antero- and posterodorsal setae in basal two thirds up to 3X as long as depth of tibia, otherwise short setose. Hind femur with 15–20 anterodorsal setae on basal third slightly longer than depth of femur, shorter apically, with row of 15–19 subequally long anteroventrals; posteroventrals 2/3 as long as depth of femur on proximal third but shorter distally. Hind tibia slightly swollen in apical part (0.13–0.14 mm at broadest point in comparison with 0.07–0.08 mm in basal part, narrower than hind femur: 0.14–0.18 mm at broadest point), 3–6 setae in each antero- and postordorsal row up to 0.24 mm long, ventral setae longer than depth of tibia on proximal 2/3 and shorter on distal third. Tarsi of all legs short, thin, short setose, basitarsus of hind leg not swollen. Wing light yellowish-brown infuscated; stigma brown, 0.70–0.85 mm long, slightly narrowing apically and subequally broad at broadest point as cell r1 at narrowest point (0.06–0.09 mm). Distance between tips of veins R1 and R2+3 about 0.30–0.40 mm. Squama light brown with dark fringes, halter light brown. Abdomen blackish-brown, lighter (pale greyish-brown) in lateral view and darker (brown) in dorsal view. Setae on abdomen all black, posteromarginals slightly longer than corresponding segments. Genitalia ( Figs 13, 14 ): hypandrium with short and relatively narrow processes covered with moderately long setae on distal half; postgonites trapezoid and relatively short, median extensions of postgonites saw-toothed ventrally; left phallic hook long, right one reduced. Female. Abdomen microtrichose, 8th sternite polished, anterior part of 8th tergite (often hidden under preceding tergite) polished. Length: body 2.8–3.8 mm, wing 2.8–3.6 mm.

Distribution. Israel, Lebanon.

Remarks. This species was originally described as a subspecies of B. spuria , however, external differences are striking enough to consider it as a separate species and we formally propose here that it be treated as such. Beside the characters given in the key, both species differ in the shape of the ejaculatory apodeme: in B. spuria it is broad posteriorly (near phallic hook, dorsal view) and button-like broadened anteriorly, whereas in B. ingrata it is narrow posteriorly (in dorsal view) and lancetoid in shape (with sharp tip) anteriorly. The ejaculatory apodeme usually bears very slight differential features, moreover, it may rotate along its longitudinal axis appearing differently in lateral view even within single specimen but when oriented in standard position (appearing as broad as possible) it may possess characters useful in differentiating species. Further studies are necessary to elucidate this point.

Figures

FIGURES 9 – 17. 9 – 10. Hypandrium (ventral view) and phallus with postgonites (lateral view) of Bicellaria globulicauda sp. nov. 11. Epandrium (lateral view) B. globulicauda sp. nov. 12. Hypandrium (ventral view) B. setitibia sp. nov. 13 – 16. Hypandrium (ventral view) and phallus with postgonites (lateral view). 13 – 14. B. ingrata Collin. 15 – 16. B. kovalevi sp. nov. 17. Phallus with postgonites (lateral view) B. setitibia sp. nov. Scale bars = 0.10 mm.