Phytomyza bulgarica, Černý & Barták & Kubík & Vála, 2022

Černý, Miloš, Barták, Miroslav, Kubík, Štěpán & Vála, Miloslav, 2022, New records of Agromyzidae (Diptera) from Bulgaria, Zootaxa 5175 (4), pp. 401-438 : 426

Phytomyza bulgarica sp. nov.

( Figs 22–30 )

Type material. HOLOTYPE: ♂. BULGARIA: Smolyan Province, Rhodopes Mts. , 5km W of Smolyan, 41º34′09”N, 24º37′54”E, 1260m a.s.l., 14.–17.vi.2019, glade, sweeping, M. Barták & Š. Kubík leg. ( CULSP).

Etymology. The name of the species, an adjectival toponym, is derived from the name of the state Bulgaria.

Description. Male. Head ( Figs 22–23 ) yellow, ocellar plate blackish brown, matt, hind margin of eye black to base vti. Orbits yellowish grey, frontal vitta and gena yellow. Antennae and arista black, scape brownish, palpus ochre brown, antennal pits yellowish. Frons about 1.7 times the width of eye at level of anterior ocellus, orbits only narrowly projecting above eye in profile. Two reclinate ors present, upper shorter and weaker, 2 inclinate ori, lower seta shorter. Only 4 weak orbital setulae present. Gena including cheek highest in posterior part, reaching almost 0.3 height of eye, 1 vi and 4 pm setae present, 1 small additional setula above vi present. Cheek forming narrow ring below eye. First flagellomere slightly longer than broad, covered with short pubescence, scape with 1 setula. Arista with short pubescence. Lunula semi-circular. Thorax. Scutum and scutellum black, matt, slightly greyish dusted. Notopleural area yellow, postpronotal lobe yellow with a small blackish oval spot in front, 1 ppnt seta and 3 setulae on black area. Anepisternum black and matt grey, upper third yellow, anepisternal suture narrowly yellow, anepst setae on dark area, 4 setulae on yellow area. Katepisternum black. Scutum with 1+3 dc, presutural dc only 0.5 length of 1 st dc, acr in 4 regular rows anteriorly, between 1 st and 2 nd dc setae only sporadic acr setulae. All usual setae present: 1 oc, 1 pvt, 1 vte, 1 vti, 1 ppl, 1 ppnt, 1+1 npl, 1 prs, 1 sa, 1 epa, 1 ipa, 1 anepst, 1 kepst, 1 bs, 1 as. Wing ( Fig. 24 ) hyaline, veins brown, wing base yellowish white, squamae grey, margin yellow and fringe brown. Length 2.37 mm, ratio of costal sections 2–4 = 2.75: 0.75: 1.00. Wing tip close to vein M 1+2. Legs blackish brown, all knees yellow, fore tibia and tarsus lighter than middle and hind ones. Base of middle and hind tibiae yellowish. Abdomen blackish brown, matt. Male genitalia: epandrium ( Fig. 26 ) slightly higher than broad, densely covered with long setae; cerci narrow, club-shaped, almost reaching 0.3 length of epandrium; phallus as Fig. 25 , distiphallus divided into two shorter tubules, mesophallus fused to distiphallus and faintly sclerotized; basiphallus composed of two very long, narrow and dark sclerites, both arms with a group of long spines in basal third; hypophallus with two short slightly curved arms bearing long and very narrow and sagittally fused sclerites; paraphallus membranous, narrow and long; phallophorus short, wide; hypandrium ( Figs 27–28 ) longer than wide, almost pentagonal, with narrow arms; ejaculatory apodeme ( Figs 29–30 ) small, V-shaped.

Female and biology unknown.

Comments. The general habitus and structure of the genitalia of this species are very similar to Phytomyza lappae Goureau, 1851 . The new species differs, however, by the following characters: height of gena about 0.3 height of eye; acr regularly in 4 rows; katepisternum black, without yellow margin; second costal section only 2.75 times the length of fourth. The phallus similar to that of Ph. lappae (see Papp & Černý 2020: Figs 138D–I), but that of the new species differs in the arrangement of the spines on the basal third along both arms of the basiphallus; the distiphallus has only two shorter tubules; the hypophallus has one pair of long, thin, ill-defined outgrowths that are directed dorsally; the hypandrium is of a pentagonal shape with narrow arms.

Figures

FIGURES 22–24. Phytomyza bulgarica sp. nov. 22—head, frontal view; 23—same, lateral view; 24—wing. Scale bar: 0.5 mm for Figs 22–23, 1 mm for Fig. 24.

FIGURES 25–30. Phytomyza bulgarica sp. nov. 25—phallus, lateral view; 26—epandrium, surstylus and cercus, caudal view; 27—hypandrium, dorsal view; 28—same, lateral view; 29—ejaculatory apodeme, lateral view; 30—same, caudal view. Scale bar: 0.1 mm.