Fannia grahami Chillcott, 1961

Zhang, Dong, Wang, Jing, Wang, Ming-Fu & Li, Kai, 2011, Taxonomic review of the lepida - group of Fannia R. - D. (Diptera: Fanniidae), Zootaxa 2803, pp. 57-62 : 58-59

Fannia grahami Chillcott, 1961

( Figs 1–3 )

Fannia grahami Chillcott, 1961b: 83 . Type locality: China, Sichuan, Songfan.

Redescription. Male: Body length 5.95–6.10 mm. Eye with short and sparse hairs, facets slightly enlarged on anterior margin in upper part; postocular setae in one row, long and fine; occipital setae behind the postocular setae on vertex in one shorter row; fronto-orbital plate and parafacial with dense greyish-silvery pruinosity; frons about as wide as the distance between two posterior ocelli, slightly narrower than width of postpedicel; frontal vitta black, upper part about equal to the width of one fronto-orbital plate; frontal setae 13 or 14, stout, nearly reaching ocellar triangle, some short setae between them; orbital setae absent; parafacial bare, about 2/3 of the width of postpedicel at middle; antenna black; postpedicel slightly wider towards apex, about 1.5 times as long as wide; arista black, slightly swollen at base, with short hairs, the longest individual hairs shorter than the basal width of arista; epistoma slightly projecting to vibrissal angle; vibrissal angle behind frontal angle in profile; subvibrissal setulae in one row, outside with one short row of setae; gena with greyish-brown pruinosity; gena and genal dilation with black hairs; upper margin of gena without upcurved setae; prestomal of medium length; prementum with greyish-yellow pruinosity, its length about 2.5 times as long as its width; palpus black, stick-like, equal to or slightly shorter than the length of prementum. Thorax black in ground colour, scutum with dark brownish-grey pruinosity, without distinct vitta; presutural acr triserial, hair-like, only prescutellar pairs slightly stronger, the distance between two outer acr rows equal to the distance between acr row and dc row; dc 2+3; ia 0+2; pra 2, about 1/2–2/3 the length of posterior notopleural seta; notopleuron without setulae; basisternum, proepisternum, anepimeron, meron and katepimeron bare; katepisternal setae 1+1; katepisternum without ventral spines; anterior spiracle yellowish, posterior one brown; calypters yellow, the lower one slightly projecting beyond the upper one. Wing brownish; veins brown, tegula black, basicosta brown, costal spine inconspicuous; node of Rs bare on ventral and dorsal surfaces; veins R4+5 and M conspicuously close to each other distally; vein R4+5 straight; crossveins without obvious cloud; halter yellow. Legs entirely black; fore coxa without anterior spines on ventral surface; fore femur with complete pd and pv rows, with numerous curved hair rows on posterior surface; fore tibia without ad and median p; mid coxa without any hooked spines or spine-like setae on lower and outer margins; mid femur with sparse av row on basal part, denser on median part, comb-like on distal part; pv rows complete; mid tibia slightly swollen at distal half, with 1 ad, 1 pd and numerous slender hairs on ventral surface, the longest ones about equal to 3/4 of mid tibial width; mid first tarsomere without basal tooth-like spines on ventral surface; hind coxa with 1 long setula on posterior surface; hind femur with 2 long av on distal 1/3; hind tibia with 2 av, 12–14 ad in one row, 1 median d and 10 p in one row. Abdomen oval, depressed and flattened, black in ground-colour, with dense grey pruinosity; syntergite 1+2 to tergite 5 each with 1 broad median inverted triangular vitta; sternite 1 bare.

Female: Unknown.

Remarks. Fannia grahami was described from specimens collected by Dr D.C. Graham from Songfan, Sichuan province, China ( Chillcott, 1961b). The holotype male (No. 64541) is deposited in the American Museum of Natural History ( USA). Since then, no subsequent material and/or additional distribution records have been reported. While studying specimens of Fannia from Yunnan and Sichuan, we found specimens that we recognized as conspecific with F. grahami . The specimens have been compared with the description and male terminalia illustrations given by Chillcott (1961b). This is the first record of the species since the original description fifty years ago.

Material examined. CHINA: Yunnan: Deqin: Mt. Baima: alt. 3800–4200m, 1 male, 5.vii.2006, M.F. Wang col., alt. 4000m, 3 males, 7.vii.2006, Y. Wang col., alt. 4000m, 18 males, 5.vii.2006, L. Chang col.; Sichuan: Mt. Balang, alt. 4300–4600m, 1 male, 3.viii.2005, M.F. Wang col.

Distribution. China (Yunnan, Sichuan).

Figures

FIGURES 1 – 3. Fannia grahami Chillcott (male): 1. Terminalia, ventral view. 2. Terminalia, lateral view. 3. Sternite 5, ventral view. FIGURES 4 – 6. Fannia immutica Collin (male): 4. Terminalia, ventral view. 5. Terminalia, lateral view. 6. Sternite 5, ventral view. FIGURES 7 – 9. Fannia lepida (Wiedemann) (male): 7. Terminalia, ventral view. 8. Terminalia, lateral view. 9. Sternite 5, ventral view.