Fannia papei, Zhang & Li & Zhang & Wang & Wang, 2016

Zhang, Dong, Li, Wei, Zhang, Ming, Wang, Ming-Fu & Wang, Rong-Rong, 2016, Fanniidae (Insecta, Diptera) from Beijing, China, with key and description of one new species, Zootaxa 4079 (4), pp. 401-414 : 410-412

Fannia papei sp. nov.

( Figs. 6−9 )

Description. MALE. Body length 3.75−4.10 mm. Eye with short and distant hairs; facets slightly enlarged on anterior margin in upper part; fronto-orbital plate and parafacial with dense grayish-silvery pollinosity, frons almost as wide as the distance between two posterior ocelli at narrowest point; frontal vitta black, with brownishyellow pollinosity, the narrowest point narrower than the width of anterior ocellus; frontal setae eight or night, stout, nearly reaching ocellar triangle, orbital setae absent; postocular setae in one row, hair-like, occipital setae behind the postocular setae on vertex in one shorter row; parafacial bare, at middle about 1/3−2/3 as wide as the width of postpedicel; antenna black, postpedicel 1.70x to 2.00x as long as wide, arista black and short plumose, slightly swollen in basal part, the longest individual hair shorter than basal aristal width, epistoma not projecting beyond vibrissal angle, vibrissal angle beyond frontal angle in profile; subvibrissal setae in one row, lateral with one short row of setae; gena and genal dilation with fine black setae; gena with grayish-brown pollinosity, upper margin of gena without upcurved seta; proboscis short, prementum shining, its length 2.00x as long as its width; palpus black, claviform, as long as or slightly shorter than the length of prementum. Thorax ground-color black, notum with grayish-brown pollinosity, without distinct vitta; presutural acr triserial, hair-like, only prescutellar pairs slightly stout, the distance between two outer acr rows narrower than the distance between acr and dc rows, dc 2+2(3), ia 0+2, pra 1, about 1/2−2/3 as long as posterior notopleural seta; scutellum with widely spread fine setae in the dorsal except median parts; notopleuron without seta; basisternum, proepisternum, anepimeron, meron and katepimeron bare; katepisternal setae 1+1, katepisternum without ventral spine; anterior spiracle brownish, posterior one brown; calypters brown with yellow margin, the lower one distinctly projecting beyond the upper one. Wing dark brown; veins dark brown; tegula black; basicosta dark brown; costal spine inconspicuous; node of Rs bare on ventral and dorsal surfaces; vein M straight, slightly parallel to vein R4+5 distally; vein r-m straight, crossveins without obvious cloud; haltere brown. Legs black except fore legs brown in basal part; fore femur with complete and stout pv and pd rows, with several upcurved p rows, fore tibia with one apical d; mid coxa without any hook-like spine or spine-like seta, mid femur with long and sparse av row in basal half, becoming gradually shorter towards apex, bare in subapical part, three or four short setae in apical part, pv row complete, slightly biserial in middle part, p row slender, mid tibia slightly swollen in distal 1/3, with two or three ad and two pd, and with numerous slender setae on ventral surface, mid first tarsomere without basal tooth-like spine on ventral surface; hind coxa with one long seta on posterior surface, hind femur with one long av row and one short pv row, in distal 1/3 from the posteroventral to posterior surface bare, hind tibia with two av, one ad and two d. Abdomen long, depressed and flattened, with dense grayish-white pollinosity; syntergite 1+2 to tergite 4 each with one median inverted triangular vitta, tergite 5 with one narrow median stripe, each tergite with long marginal setae; sternite 1 with setae, sternite 5 profoundly indented on posterior margin and covered with setae ( Fig. 8C ); cercus elongate, concave on the median line, from lateral view slightly curved towards ventral ( Figs. 8A, B ), surstylus becoming slightly broader towards apex ( Fig. 8B ), bacilliform process absent.

FEMALE. Body length 3.70−4.00 mm. Fronto-orbital plate and parafacial with dense brownish-gray pollinosity; frons at middle about 2/5 as wide as the distance between the width of head; frontal vitta at narrowest point about 6.00x as wide as the width of anterior ocellus; frontal setae five or six, upper orbital setae two. Thorax presutural acr biserial; calypters brownish-yellow. Wing basicosta brownish-yellow; costal spine conspicuous. Legs entirely black; mid femur with complete and hair-like av row, with short pv in basal half, mid tibia with one ad, two or three pd; hind femur with one av row in basal 1/3 (with three or four stout), pv inconspicuous, hind tibia with one av. Abdomen with thin gray pollinosity, without obviously mark; sternite 1 bare; terminalia see fig. 9. Other morphological characteristics are similar to those of the male.

Remarks. This new species resembles F. nigriclara Zhang & Xue, 1993 but differs from it by having parafacial about 1/3−2/3 as wide as the width of postpedicel; palpus as long as or slightly shorter than prementum; presutural acr triserial; calypters brown; mid tibia with two or three ad; hind coxa with one long seta on posterior surface; hind tibia with one ad; male sternite 5 slightly narrower and cercus slightly straight.

Type material examined. Holotype ♂, Beijing: Yanqing, Mt. Songshan , 12.VI.2010, Coll. D. Zhang ( MBFU) ; paratypes 4♂, 2♀, the same data as holotype ( MBFU) .

Etymology. The new species is named after Dr. Thomas Pape in honor of his outstanding work on Calyptratae.

Distribution. Paleactic: China (Beijing).

Figures

FIGURE 6. Fannia papei sp. nov. from Beijing, China, male: A. Habitus, lateral view. B. Abdomen, dorsal view. C. Head, anterolateral view. D. Head, anterior view. E. Mid leg, anterior view. (Scale bars: A = 1.00 mm, B − E = 0.50 mm).

FIGURE 7. Fannia papei sp. nov. from Beijng, China, female: A. Habitus, lateral view. B. Abdomen, dorsal view. C. Head, anterolateral view. D. Head, anterior view. (Scale bars: A = 1.00 mm, B − D = 0.50 mm).

FIGURE 8. Fannia papei sp. nov. from Beijng, China, male: A. Terminalia, ventral view. B. Terminalia, lateral view. C. Sternite 5, ventral view. (Scale bars: A − C = 0.25 mm).

FIGURE 9. Fannia papei sp. nov. from Beijng, China, female: A. Terminalia, ventral view. B. Terminalia, dorsal view. (Scale bars: A and B = 0.50 mm. Abbreviations: cerc = cercus, epiprct = epiproct, hyprct = hypoproct, st = sternite, tg = tergite).