Teratomyza chinica Yang Chikun

Papp, László, 2011, Oriental Teratomyzidae (Diptera: Schizophora), Zootaxa 2916, pp. 1-34 : 5-8

Teratomyza chinica Yang Chikun , 199[8]

( Figs 9–11 , 14–20 , 28–29 )

Material studied. VIETNAM: 1 Ƥ, Sín Chai, “Legendary place”, 10. 11. 2003, No. 1, along forest path & creek, leg. Földvári, Peregovits, Kőrösi; 1 3, 1 Ƥ, Lao Cai Prov., Sín Chai, Hoáng Liên N.P., Tram Ton, along rivulet, 1936 m, 22º20.941’N 103º46.197’E, Dec 16–17, 2008, leg. L. Papp, VN 2008PL10; 1 Ƥ, ibid., Dec 12, VN 2008PL03.

Remarks. This species was described on page 486 (in Chinese), and on 488 (in English), the figure on its wing is on plate 78 (fig. 1074). A coloured habitus figure, which seems less informative, was published in the 2nd volume of that work (fig. 268). It was described from Mt. Maoer, Xingan, Guangxi (South China, for the date of publication of that book see Pont & Xue (2007). Our North Vietnamese specimen is only tentatively assigned to this species since the original description did not include figures of the male genitalia and requests to examine type material have not been answered.

Description. Length of body 2.2 mm, wing 2.5 * 1.2 mm (in the original description). Length of arista/ antenna: 37/15. Wing with margin sections: R2+3–R4+5–M1–M4–A1: 59/30/67–68/c. 30 (A1 not reaching wing margin); Yang (199[8]: fig. 1074, measured on figure): 17.5/8/18.3/9.7. Those are not decisive differences.

Male genitalia. There are distinct sub-symmetrical sclerites inside synsclerite 7 ( Fig. 9 ). Subepandrial sclerite ( Fig. 10 ) otherwise shaped, its dorsal part narrower. Surstylus ( Fig. 11 ) longer than that of T. formosana and its apical part is narrower and its apical third is free of setae (cf. Fig. 13 ). Pregonite ( Figs 17–18 ) with a long narrow apical process. Postgonite ( Figs 19–20 ) much longer than that of T. formosana . Epiphallus ( Fig. 20 ) almost two times longer than wide. Mesophallus short as in T. formosana but the ribbons are at least 2 times broader. Distiphallus without thin apical processes. Phallapodeme ( Fig. 16 ) much longer than that of T. formosana ( Fig. 25 ). Ejaculatory apodeme ( Figs 14–15 ) very large, its distal end broader but shorter than in T. formosana (cf. Figs 22–23 ).

Female sternite 8 rather quadrate ( Fig. 28 ), spermathecae ( Fig. 29 ) rather globular (length/width 0.065 * 0.055 mm), warts distinct around base only (at duct base).

Figures

FIGURES 9 – 13. Teratomyza spp., male postabdomen and genitalia. 9 – 11 = Teratomyza chinica Yang Chikun, 199 [8]: 9 = pregenital sclerites, incl. syntergosternite, ventral view, 10 = epandrium, surstyli, cerci and subepandrial sclerite (dotted), subventral (anterior) view, 11 = surstylus, broadest extension (sublateral view). 12 – 13 = T. formosana sp. n.: 12 = epandrium, surstyli, cerci and subepandrial sclerite (dotted), subventral (anterior) view, 13 = surstylus, broadest extension (sublateral view). Scales: 0.2 mm for Figs 9 – 10, 12, 0.1 mm for Figs 11, 13.

FIGURES 14 – 20. = Teratomyza chinica Yang Chikun, 199 [8], male genitalia. 14 = ejaculatory apodeme, dorsal view, 15 = same, lateral view, 16 = phallapodeme, dorsal view, 17 = pregonite, lateral view, 18 = pregonite with hypandrium and phallapodeme, lateral view, 19 = postgonite, widest (nearly lateral) view, 20 = epiphallus and postgonite, caudal view. Scales: 0.2 mm for Figs 15, 18, 0.1 mm for Figs 14, 16 – 17, 19 – 20.

FIGURES 28 – 31. Teratomyza species, female genitalia. 28 – 29 = T. chinica Yang Chikun: 28 = sternite 8, 29 = spermatheca. 30 – 31 = T. formosana sp. n.: 30 = sternite 8, 31 = spermatheca. Scale: 0.1 mm.

FIGURES 21 – 27. Teratomyza formosana sp. n., male postabdomen and genitalia. 21 = pregenital sclerites, incl. syntergosternite, ventral view, 22 = ejaculatory apodeme, lateral view, 23 = same, dorsal view, 24 = pregonite, broadest extension (nearly lateral view), 25 = phallapodeme, dorsal view, 26 = postgonite, lateral view, 27 = epiphallus, caudal view. Scales: 0.2 mm for Figs 21 – 22, 0.1 mm for Figs 23 – 27.