Paramerina divisa (Walker)

Kobayashi, Tadashi & Endo, Kazuo, 2008, Synonymic notes on some species of Chironomidae (Diptera) described by Dr. M. Sasa (†), Zootaxa 1712, pp. 49-64 : 52

Paramerina divisa (Walker)

( Figs. 5–6 )

Paramerina divisa ( Walker, 1856: 192) (as Chironomus ); Fittkau (1962: 332–333).

Paramerina kurobekogata Sasa et Okazawa, 1992a: 64 , Fig. 24 . [Holotype 233: 096.] Syn. nov. Paramerina tokararesea Sasa et Suzuki, 1995: 285 –287, Fig. 23 . [Holotype 290: 075.] Syn. nov. Krenopelopia yunouresia Sasa, 1989: 152 –153, Plate 4A. [Holotype 052: 023b.]. Syn. nov. Krenopelopia amaminova Sasa, 1990: 138 –139, Fig. 26 . [Holotype 179: 061.] Syn. nov.

Krenopelopia togavicea Sasa et Okazawa, 1992b: 213 –214, Fig. 10 . [Holotype 188: 056.] Syn. nov. Monopelopia okigenga Sasa, 1990: 141 –142, Fig. 28 . [Holotype 174: 094.] Syn. nov.

Krenopelopia amaminova , K. togavicea , and K. yunouresia do not belong to Krenopelopia Fittkau , but to Paramerina Fittkau , since they all possess the following characters (features of Krenopelopia in parentheses): costa ending clearly before end of M1+2 (costa ending beyond M1+2); abdominal tergite IX without row of setae (with row of setae); mid tibial spurs very narrow and elongate, with 2–3 lateral teeth (slender, with 3–4 lateral teeth) ( Fig. 6 ); some abdominal tergites with dark band (all abdominal tergites without dark band, overall very pale); apodemes distinct, apical part of transverse sternapodeme pointed, phallapodeme long (phallapodeme indistinct) ( Fig. 5 ).

Monopelopia Fittkau is characterized by the spindle-shaped tibial spurs, single spurs on mid and hind tibiae, short phallapodeme, tergite IX with transverse row of setae, and by lacking R2+3. Monopelopia okigenga has two tibial spurs on mid and hind legs, with main tooth and some lateral teeth, weak R2+3, long phallapodeme, and tergite IX without row of setae. These characters clearly indicate that the species belongs in Paramerina .

According to Fittkau (1962: 327–328) and Pinder (1978: 34), Krenopelopia amaminova Sasa , K. togavicea Sasa et Okazawa , K. yunouresia Sasa , Monopelopia okigenga Sasa , Paramerina kurobekogata Sasa et Okazawa , and P. t o k a r a re s e a Sasa et Suzuki all key to Paramerina divisa (Walker) as they have wing membranes without pigmentation and abdominal tergites II and V almost pale. All six species thus are considered as synonyms of P. divisa .

Figures

FIGURES 1 – 12. Male holotypes of Tanypodinae. 1 – 2. Denopelopia irioquerea (Sasa et Suzuki, 2000), comb. nov., hypopygium (1), scale-like setae of fore tibia (2). 3 – 4. Zavrelimyia inawaquerea Sasa, Kitami et Suzuki, 2000 [= Natarsia tokunagai (Fittkau, 1962)], wing (3), mid tibial spurs (4). 5 – 6. Krenopelopia yunouresia Sasa, 1989 [= Paramerina divisa (Walker, 1856)], hypopygium (5), hind tibial spurs (6). 7 – 8. Paramerina okimaculata Sasa, 1990, hypopygium (7), mid tibial spurs (8). 9 – 10. Krenopelopia togatibea Sasa et Okazawa, 1992 [= Psectrotanypus orientalis Fittkau, 1962], hypopygium (9), mid tibial spurs (10). 11 – 12. Krenopelopia joganflava Sasa et Okazawa, 1991 [= Rheopelopia ornata (Meigen, 1838)], hypopygium (11), mid tibial spurs (12). Scale lines: 1000 μm (3); 100 μm (1, 5, 7, 9, 11); 50 μm (2, 4, 6, 8, 10, 12).

FIGURES 13 – 26. Male holotypes of Tanypodinae (13 – 22) and Diamesinae (23 – 26). 13 – 14. Zavrelimyia inaveua Sasa, Kitami et Suzuki, 2001 [= Tanypus punctipennis Meigen, 1818], scutal tubercle in dorsal view (13), mid tibial spurs (14). 15 – 18. Trissopelopia oyabetrispinosa Sasa, Kawai et Ueno, 1988 [= Trissopelopia longimana (Staeger, 1839)], hypopygium (15), fore tibial spur (16), mid tibial spurs (17), hind tibial spurs (18). 19 – 22. Zavrelimyia tusimuheia (Sasa et Suzuki, 1999), comb. nov., hypopygium (19), fore tibial spur (20), mid tibial spurs (21), hind tibial spurs (22). 23. Diamesa kurobedistalis Sasa et Okazawa, 1992 [= Diamesa alpina Tokunaga, 1936], hypopygium. 24 – 25. Diamesa sunabacedea (Tanaka et Sasa, 2001), comb. nov., hypopygium (24), anal point (25). 26. Potthastia togabicolis Sasa et Okazawa, 1992 [= Potthastia gaedii (Meigen, 1838)], hypopygium. Scale lines: 100 μm (13, 15, 19, 23 – 26); 50 μm (14, 16 – 18, 20 – 22).

FIGURES 27 – 31. Male holotypes of Diamesinae (27 – 28), Prodiamesinae (29) and Chironominae (30 – 31). 27 – 28. Sympotthastia toyamayezea Sasa, 1996 [= Sympotthastia takatensis (Tokunaga, 1936)], tergite IX (27), lateral aedeagal lobe (28). 29. Prodiamesa toneheia Sasa et Tanaka, 2000 [= Prodiamesa levanidovae Makarchenko, 1982], hypopygium. 30. Daitoyusurika daitofegea Sasa et Suzuki, 2001 [= Chironomus crassiforceps (Kieffer, 1916)], hypopygium. 31. Cryptotendipes sibaabeus Sasa, Sumita et Suzuki, 1999 [= Cladopelma edwardsi (Kruseman, 1933)], hypopygium. Scale lines: 100 μm.