Paracladius Hirvenoja

Fu, Yue, Wang, Xinhua & Andersen, Trond, 2010, Chinese Paracladius Hirvenoja, with the description of P. ovatus sp. n. (Chironomidae: Orthocladiinae), Zootaxa 2453, pp. 62-68 : 67-68

Key to the males of Paracladius Hirvenoja

1. Anal point without lateral setae .................................................................................................................................... 2

- Anal point with lateral setae ......................................................................................................................................... 5

2. Anal point not overreaching the posterior margin of tergite IX; gonostylus without crista dorsalis ( Japan) ................. ................................................................................................................... Paracladius tusimoabeus (Sasa et Suzuki)

- Anal point extending beyond the posterior margin of tergite IX; gonostylus with crista dorsalis ............................... 3

3. Anal point long, without microtrichia (Russian Far East) ...... Paracladius seutakanus Makarchenko et Makarchenko

- Anal point short, with dorsal microtrichia .................................................................................................................... 4

4. AR> 2.8; gonostylus with pointed triangular crista dorsalis (Oriental China) .............................................................. ........................................................................................................................... Paracladius antennarius Yan et Wang

- AR <2.0; gonostylus with rounded crista dorsalis (Holarctic, Near East)............... Paracladius alpicola (Zetterstedt)

5. Inferior volsella rounded or boot-shaped with rounded apex ....................................................................................... 6

- Inferior volsella hooked with pointed apex .................................................................................................................. 7

6. Anal point 50 µm long; inferior volsella rounded; costal extension 12 µm long; sensilla chaetica 13 on ta1 of hind leg (Oriental China) ..................................................................................................................... Paracladius ovatus sp. n.

- Anal point 30–35 µm long; inferior volsella boot-shaped; costal extension 30–50 µm long; sensilla chaetica 6–8 on ta1 of hind leg ( Japan, Palaearctic China) ................................................... Paracladius akansextus Sasa et Kamimura

7. Anal point 10–30 µm long, not overreaching the posterior margin of tergite IX (Holarctic, Near East)....................... .................................................................................................................................... Paracladius conversus (Walker)

- Anal point 40–50 µm long, extending beyond the posterior margin of tergite IX ....................................................... 8

8. AR> 1.7; anal point entirely covered with microtrichia; gonostylus with low crista dorsalis (Holarctic).................... ........................................................................................................................... Paracladius quadrinodosus Hirvenoja

- AR <1.5; anal point without microtrichia in apical one-half; gonostylus with high crista dorsalis ( Russia Far East) .................................................................................................. Paracladius omolonus Makarchenko et Makarchenko