Speccafrons costalis ( Duda, 1930 )

Liu, Xiaoyan & Yang, Ding, 2015, Speccafrons (Diptera: Chloropidae: Oscinellinae) newly found in mainland China with description of a new species, Florida Entomologist 98 (2), pp. 563-566 : 566

2. Speccafrons costalis ( Duda, 1930) ( Figs. 9-12 )

Siphunculina costalis Duda, 1930: 282 . Type locality: China (Taiwan). Oscinella costalis Sabrosky, 1977: 292 .

Speccafrons costalis Kanmiya, 1983: 141 .

DIAGNOSIS

Frons black with gray microtomentum; gena yellowish brown, ventral margin black, broad, 0.5 times as wide as first flagellomere. Ocellar triangle black and largely glossy except for lateral margins and ocellar tubercle which are sparsely microtomentose, extending to 0.7 of frons. Antenna brownish yellow except for dorsal 1/2 of first flagellomere brown; arista black except for basal segment yellow, with short pubescence. Scutum and scutellum entirely black, weakly glossy, minutely but distinctly shagreened and clothed with many brown setulae. Legs yellow except for coxae black; femora black with yellow distal ends; middle 1/3 of hind tibia black. Abdomen glossy brown except for tergite 1 with yellow distally; venter yellow. Setulae on abdomen brown. Male genitalia ( Figs. 9-12 ): Epandrium yellow with long yellow setulae; surstylus strongly sclerotized, globose, with small pointed prominence directed medially, smooth, with sparse setulae around median prominence, weakly articulating with epandrium. Cercus separate, large and broad, as long as broad. Gonites not well demarcated, pointed at top, short; phallus short, tube-like; phallapodeme short with basal stalk broad in lateral view. Hypandrium closed.

Female. Unknown.

SPECIMENS EXAMINED

Two Ƌ, CHINA: Yunnan, Xishuangbanna, Wangtianshu , 09-V-2009, Coll. Xiushuai Yang (in 75% alcohol, deposited in CAU) .

DISTRIBUTION

China (Yunnan, Taiwan); Japan.

REMARKS

Speccafrons costalis is somewhat similar to S. halophila (Duda) , but it can be separated from the latter by the following features: frons with gray microtomentum; ocellar triangle black largely glossy except for lateral margins and ocellar tubercle. In S. halophila , the frons is glossy and the ocellar triangle is entirely microtomentose and weakly glossy ( Kanmiya 1983).

Figures

Figs. 9–12. Speccafrons costalis (Duda). Male. (9) Epandrium, posterior view; (10) Epandrium, lateral view; (11) Hypandrium and phallic complex, ventral view; and (12) Hypandrium and phallic complex, lateral view. Scale bar = 0.1 mm.