Lonchaea chinensis, Introduction & Fallén & Morge, 2007

Introduction, Iain, Fallén, Lonchaea & Morge, Setisquamalonchaea, 2007, New pecies of Lonchaeidae (Diptera: Schizophora) from Asia, Zootaxa 1631, pp. 1-32 : 4-5

Lonchaea chinensis sp. nov.

Description: Holotype male: Head: Eyes with long, dense, dark hairs, these almost half as long as orbital setae. Frons, on central part between ocelli and antennal bases parallel sided, just less than half eye width, dull grey-black with few fine linear grooves on its surface, bearing numerous long interfrontal setulae, longest setulae 80% length of orbital setae. Orbital plate bare and weakly shining. Lunule with 6–7 long setulae on each side, when seen in dorsal view slightly silvered as is face. Parafacials also silvered, this extending ventrally to anterior part of genae. Genae anteriorly with single row of four short setae anteriorly along mouth margin, posterior to these a double row of six stronger setae and posterior to these multiserial rows beneath eye. Antennal flagellomere entirely black, just under 2.5 times as long as deep, reaching ventrally to just dorsal of mouth margin. Arista bare, entirely black.

Thoracic dorsum matt black, covered in long, dense setulae three quarters as long as orbital setae. Notopleural depression bearing a few setulae. Anepisternum covered in long, dense setulae, no strong setae anteriorly but with four posteriorly. One propleural and five stigmatical setae. Katepisternum partially obscured by mounting gum on each side but apparently bearing one long, fine setae and numerous long setulae. Squamae dark brown with slightly lighter margins, fringe golden brown, containing few hairs slightly longer than others. Scutellum matt black with long setulae on margins, more than half as long as marginal setae including a few situated anterior to lateral seta, scutellar disc also covered in setulae apart from on basal and central areas. Wings slightly fumose. Wing length 5.5mm. Intercostal space twice as long as crossvein R- M. Legs entirely black. Abdomen dull black, first sternite entirelly bare.

Male terminalia: Figs. 4–6. In lateral view epandrium diamond shaped, as tall as wide, bearing rather regular row of setulae along posterior margin with several more situated on posteroventral corner. Cerci large almost half as high as the epandrium, rectangular and bearing short setulae on the ventral and posterior margins, surstyli contained within epandrium. Parameres long, sclerotised, curved at apex which also bears a few setulae on lateral margin, aedeagal guide also exceptionally well developed, sclerotised, long and narrow, curved apically and with a small notch. In ventral view margins of surstyli just visible, bearing three wellspaced spinules. Aedeagus in lateral view a rather simple J-shaped sinuous tube, apex membranous.

Differential diagnosis: With hairy eyes, a single row of anterior genal setulae, multiple stigmatical setae, dark squamal fringe and black legs this species shows some affinities to European species such as Lonchaea hirticeps Zetterstedt, 1837 and L. corusca Czerny, 1934 . However the unique features of the male terminalia including the well-developed parameres, aedeagal guide and simple tubular aedeagus easily separate this species from other known species of Lonchaea .

TYPE MATERIAL: Holotype male: CHINA: Fukien , Kuaturi, 2300m, 27°40’N / 117° 40’E, J. Klapperich, 5.iv.1938.

Only known from the holotype in the ZFMK .

Etymology: The specific epithet refers to the country of capture of the holotype.