Isoneuromyia Brunetti

Xu, Huachao, Cao, Jian, Wu, Hong, Evenhuis, Neal L. & Zhou, Zuji, 2007, Four new species of Isoneuromyia from China (Diptera: Keroplatidae), Zootaxa 1423, pp. 51-57 : 52

Key to the species of Isoneuromyia Brunetti known from China

1. Occiput predominantly orange to yellow with darker occipital triangle ..................................................... 2

-. Occiput predominantly brownish black to black ......................................................................................... 3

2. Mesonotum with three distinct dark stripes; antennal flagellomeres brownish black .... formosana (Okada)

-. Mesonotum with three stripes, median stripe orange and two admedian stripes black ( Fig. 1 ); antennal flagellomeres yellowish orange ............................................................... sinica Xu, Cao et Evenhuis, n. sp.

3. Veins M2 and CuA1 reaching wing margin ( Fig. 6 ); only tergites IV–V orange .......................................... ............................................................................................................ completa Xu, Cao et Evenhuis, n. sp.

-. Veins M2 and CuA1 not reaching wing margin; tergites IV–V not as above.............................................. 4

4. Abdomen predominantly black with some paler markings ......................................................................... 5

-. Abdomen with more uniform coloration, either black or brownish yellow; gonostyli with two large teeth ......................................................................................................................................... semirufa (Meigen)

5. Gonostyli reduced, apex with only one dark tooth ( Fig. 11 ); paramere strong, in lateral view ( Fig. 12 ) shaped like a broom, with very dense black short hairs apically .......... singula Xu, Cao et Evenhuis, n. sp.

-. Gonostyli normal in size, with two dark teeth apically ( Fig. 13 ), two minute dark sclerotized teeth in between large darkly sclerotized ones .......................................... wolongensis Xu, Cao et Evenhuis, n. sp.

Figures

FIGURES 1 – 8. 1 – 4. Isoneuromyia thoraces, dorsal view. 1. I. sinica, n. sp. 2. I. completa, n. sp. 3. I. singula, n. sp. 4. I. wolongensis, n. sp. 5 – 8 Isoneuromyia wings. 5. I. sinica, n. sp. 6. I. completa, n. sp. 7. I. singula, n. sp. 8. I. wolongensis, n. sp.

FIGURES 9 – 13. Isoneuromyia male genitalia. 9. I. sinica, n. sp. ventral view (cerci and proctiger omitted). 10. I. completa, n. sp. ventral view (cerci and proctiger omitted). 11. I. singula, n. sp. ventral view (cerci and proctiger omitted). 12. I. singula, n. sp. lateral view (gonostyli omitted) 13. I. wolongensis, n. sp. ventral view (cerci and proctiger omitted). Scale bar = 0.1 mm.