Procladius

Key to pupae of Procladius present in Lake Winnipeg Roback (1980:30) give a more complete key to pupae of Nearctic species. The variation in size, however, appear to be larger than indicated by Roback and P. (H.) culiciformis in the sense of Roback appear to differ from the associated pupae from Lake Winnipeg. 1. Anal lobes (Fig.12 G) with 15–27 spines; spines at apex not distinctly set off from remaining spines, not in a dense cluster and not on a protuberance; thoracic horn (Fig. 12 A) 0.29–0.43 mm long and 3.4–5.3, mean 4.6 times as long as wide...................................................................................... P. (Psilotanypus) bellus (Loew) - Anal lobes with 24–63 spines; spines at apex either distinctly set off from remaining spines, in a dense cluster of spines or on a protuberance (Fig. 12 H–L); thoracic horn (Fig. 12 B–F) 0.33–0.65 mm long and 2.6–4.0 times as long as wide........... 2 2. Neck of thoracic horn not visible, hidden by plastron plate; anal lobe with about 45 lateral spines.............................................................................................. P. (Holotanypus) paragretis? Roback - Neck of thoracic horn visible, not hidden by plastron plate; anal lobe with about 23–62 lateral spines................... 3 3. Tergites dark, brownish; plastron plate (Fig.12 D) about 1.26 times as wide as apical constriction of horn chamber; thoracic horn about 0.53 mm long; about 40 spines on anal lobe (Fig. 12 J)............................ P. (H.) rugulosus? n. sp. - Tergites light, pale brownish; plastron plate about 1.4 –3.1 times as wide as apical constriction of horn chamber; thoracic horn 0.35–0.58 mm long; 23–62 spines on anal lobe.............................................................. 4 4. Atrial wall of thoracic horn with reticulate pattern (Fig. 12 E, F)................................................ 5 - Atrial wall of thoracic horn without reticulate pattern......................................................... 6 5. Spinules on T IV relatively large, not much grouped (Fig. 12 M); anal lobe (Fig. 12 K) with 24–32, mean 28, spines on outer margin; sparse row of long spines posterolaterally; spines at apex either on distinct protuberance or enlarged; thoracic horn (Fig. 12 E) 0.39–0.58 mm long..................................................... P. (H.) denticulatus Sublette - Spinules on T IV smaller, grouped (Fig. 12 N); anal lobe (Fig. 12 L) with 36–40, 38 spines on outer margin, densely grouped posterolaterally, usually one at apex of inner margin, and apical spines relatively small and set off from remaining spines; thoracic horn (Fig. 12 F) 0.38–0.49 mm long................................................ P. (H.) sublettei Roback 6. Anal lobe with about 7–12 spines near apex of inner margin (Fig. 12 I); spines at apex directed laterad, 42–62 distinct spines on outer margin..................................................................... P. (H.) culiciformis (L.) - Anal lobe at most with 1 apical spine on inner margin; spines at apex of outer margin directed perpendicular to anal lobe (Fig. 12 H); about 26–50 distinct spines on outer margin....................................... P. (H.) freemani Sublette

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