Thienemanniella

Wiedenbrug, Sofia, Lamas, Carlos E. & Trivinho-Strixino, Susana, 2013, A review of Neotropical species in Thienemanniella Kieffer (Diptera, Chironomidae), Zootaxa 3670 (2), pp. 215-237 : 235

Key to known pupae of Thienemanniella of the neotropical region

T. spreta sensu Sublette & Sasa is not included

1 Fringe of anal lobe with fewer than 20 short setae; tergal conjunctives II/III–V/VI with strong hooklets; segments IV–VIII with 3 short lateral setae per side, the L2 taeniate and longer than the other two.................... T. medialis Sublette & Sasa

- Fringe of anal lobe with more than 20 setae; tergal conjunctives II/III–V/VI with hooklets small or absent; segments IV–VIII with 4 taeniate lateral setae.............................................................................. 2

2 Tergites II–VIII each with one posterior row of strong and wide spines..................... T. manihuales sp. n. ( Chile)

- Tergites II–VIII not as above............................................................................. 3

3 Tergal conjunctives VII/VIII without hooklets........................... T. similis (Malloch) sensu Hestenes & Saether

- Tergal conjunctives VII/VIII with small hooklets or spinules.................................................. 4

4 Tergites IV and V with homogeneous fine shagreen; sternite II with short points; male genital sac posteriorly rounded............................................................................................... T. biobio sp. n.

- Tergites IV and V with shagreen points increasing in size posteriorly; sternite II with shagreen of elongate spinules; male gen- ital sac with posterior inner margin oblique................................................... T. spreta group... 5

5 Tergites VII and VIII with posterior shagreen spinules wider than long; sternites VI–VII with one or two posterior rows of points larger than those preceding them................................................. T. sanctivincenta Saether

- Tergites VII and VIII with posterior shagreen spinules usually longer than wide; sternites VI–VII with homogeneous shagreen.................................................................................................... 6

6 Sternite I bare............................................................................... T. liae Paggi

- Sternite I with very fine shagreen......................................................................... 7

7 Sternite VIII of male pupae with posterior spines distinctly wider than long; Dc1 distinctly displaced to ventral................................................................................................ T. sancticaroli sp. n.

- Sternite VIII of male with posterior spines as long as wide; Dc setae usually in two pairs or slightly displaced to ventral............................................................................................ T. ubatuba sp. n.