Paratrichocladius Santos Abreu

Fu, Yue, Saether, Ole A. & Wang, Xinhua, 2012, A review of Paratrichocladius Santos Abreu from the Sino-Indian Region (Diptera: Chironomidae: Orthocladiinae), Zootaxa 3478, pp. 453-482 : 480-481

publication ID

https://doi.org/ 10.5281/zenodo.209364

DOI

https://doi.org/10.5281/zenodo.6179312

persistent identifier

https://treatment.plazi.org/id/D4786322-7332-0147-FF04-FDE17D96FE3D

treatment provided by

Plazi

scientific name

Paratrichocladius Santos Abreu
status

 

Key to Sino-Indian Region males of Paratrichocladius Santos Abreu View in CoL View at ENA

1. Inferior volsella bilobed................................................................................ 2

– Inferior volsella single-lobed............................................................................ 8

2. Abdominal tergites II–III, VI–VIII dark brown, other tergites yellowish; humeral pit absent; gonostylus slender, with very small crista dorsalis P. bicinctus View in CoL sp. n.

– Abdominal tergites in the same color, humeral pit present; gonostylus with distinct crista dorsalis...................... 3

3. Scutellum with 26–30, 28 setae; setae on anterior margin of tergite V–VI clearly reduced; inferior volsella boxing glove shaped.................................................................................. P. caestus View in CoL sp. n.

– Scutellum with less than 20 setae; setae on anterior margin of tergite V–VI not reduced; inferior volsella not boxing glove shaped.............................................................................................. 4

4. Femur of middle and hind legs dark brown in apical 1/3, other parts yellow; humeral pit reniform; palpomere 5th/3rd higher than 3.0; setae on tergites very short, posterior of tergites V–VII in pale coloration................. P. tridens Fu et Wang, 2008 View in CoL

– Legs unicolored, humeral pit not reniform; palpomere 5/3 lower than 2.0; setae on tergites long, posterior of tergites V–VII not in pale coloration 5

5. Dorsocentrals 33, and multiserial; superior volsella rounded and well developed, gonostylus with small triangular crista dorsa- lis...................................................................... P. yakukeleus Sasa et Suzuki, 2000a View in CoL

– Dorsocentrals 12–26, and uniserial; superior volsella not developed; gonostylus with rounded crista dorsalis............. 6

6. AR about 0.9, dorsocentrals 26, apex of inferior volsella ring-like....................................................................................................................... P. tusimocedeus Sasa et Suzuki, 1999 View in CoL

– AR more than 1.0, dorsocentrals 12–18, apex of inferior volsella not ring-like...................................... 7

7. AR 1.6–2.0, 1.8; laterosternite IX with 6–8, 7 long setae; abdomen pilose; gonostylus with normal crista dorsalis, not expanded medially....................................................................... P. ater Wang et Zheng, 1990 View in CoL

– AR 1.05–1.26, laterosternite IX with 3 long setae; chaetotaxy of abdomen reduced; gonostylus medially expanded, with well developed rounded crista dorsalis....................................................... P. tamaater Sasa, 1981 View in CoL

8. Palp with only 3 palpomeres............................................................... P. ternarius View in CoL sp. n.

– Palp with 5 palpomeres................................................................................. 9

9. Apex of inferior volsella rounded....................................................................... 10

– Apex of inferior volsella not rounded.................................................................... 13

10. AR nearly 3.0....................................................................................... 11

– AR lower than 0.5................................................................................... 12

11. Hind tibia with three spurs and without normal comb; inferior volsella without semitransparent margins; gonostylus straight, apically expanded P. c o m p t u s sp. n.

– Hind tibia with two spurs and with normal comb; inferior volsella with semitransparent margins; gonostylus apical hooked, medially expanded....................................................... P. mongolseteus Sasa et Suzuki, 1997 View in CoL

12. Gonostylus with small triangular crista dorsalis; corner of inferior volsella right-angled, with 6–7 long setae................................................................................................ P. unabrevis Sasa, 1996 View in CoL

– Gonostylus with high triangular crista dorsalis; corner of inferior volsella rounded, without long setae...................................................................................... P. tobanonadecimus Kikuchi et Sasa, 1990 View in CoL

13. Apex of inferior volsella hook-shaped.................................................................... 14

– Apex of inferior volsella not hook-shaped................................................................. 15

14. Inferior volsella basally narrowed, protruding in medial direction, strongly hooked medially; gonostylus slightly expanded on basal 1/4, with nearly rounded crista dorsalis.................................................. P. aduncus View in CoL sp. n.

– Inferior volsella basally broad, not protruding in medial direction, apically hooked; gonostylus not expanded on basal 1/4, with small triangular crista dorsalis................................................. P. hamatus Wang et Zheng, 1990 View in CoL

15. Inferior volsella strongly downwards curved............................................................... 16

– Inferior volsella straight or slightly curved................................................................. 17

16. Inferior volsella apical pointed, digitiform.............................................. P. guidalii Rossaro, 1990 View in CoL

– Inferior volsella un-artificially folded near medial apex............................... P. pierfrancescoi Rossaro, 1990 View in CoL

17. Inferior volsella wide and rectangular, anterior and posterior margins parallel............... P. lanzavechiai Rossaro, 1990 View in CoL

– Inferior volsella narrow and more or less triangular or sagittiform, anterior and posterior margins not parallel........... 18

18. Inferior volsella arrow-shaped, pointing downwards; gonostylus with pointed triangular crista dorsalis... P. sagittarius View in CoL sp. n.

– Inferior volsella nearly triangular, pointing medially, gonostylus with triangular or slightly rounded crista dorsalis........ 19

19. AR 0.62, row of basal setae of abdominal tergites absent.............................. P. brevicornis Hirvenoja, 1986 View in CoL

– AR> 0.77, row of basal setae of abdominal tergites present................................................... 20

20. AR usually less than 1.0; humeral pit scarcely present, inferior volsella higher, and not distinctly mediad extended.................................................................................... P. skirwithensis ( Edwards 1929) View in CoL

– AR usually more than 1.0; humeral pit strongly developed, inferior volsella lower, and distinctly extended mediad....... 21

21. Inferior volsella posteriorly relatively hooked, with notched margin.......................... P. pretorianus (Freeman) View in CoL

– Inferior volsella posteriorly relatively straight, with flat margin........................... P. rufiventris ( Meigen,1830) View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Chironomidae

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