Gripopterygidae Enderlein 1909
Key to larvae of South American Gripopterygidae Family diagnosis. Gripopterygidae are distinguished by a supra ‐ anal retractable rosette of unsegmented, often purplish gill filaments. Only Notoperla lacks gills but can be separated from the gill ‐ less South American family, Notonemouridae, by its...
| Main Authors: | , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
| Published: |
2007
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| Subjects: | |
| Online Access: | https://zenodo.org/record/4762016 https://doi.org/10.5281/zenodo.4762016 |
| Summary: | Key to larvae of South American Gripopterygidae Family diagnosis. Gripopterygidae are distinguished by a supra ‐ anal retractable rosette of unsegmented, often purplish gill filaments. Only Notoperla lacks gills but can be separated from the gill ‐ less South American family, Notonemouridae, by its large furcasternum widely separating the coxae and by furcal pits located far from the spina. In Notonemouridae, the furcasternum is very small, coxae are close together, and furcal pits are adjacent to the spina. 44 46 47 The larva of Andiperlodes is unknown. Taxa that may or may not be dirt covered are identified by their morphology, not mainly by the dirt cover There is little information on morphological change during larval development of South American Gripo pterygidae, which may be important (Figs 43 ‐ 47). Change may also concern changes in late instars that are not related to wing development, for example Antarctoperlinae sp. II and IV. The key is to last instar larvae. 1 No gills; all coxae with an almost triangular projection next to articulation with thorax (Fig. 48 ‐ 49); large sprawling larvae with prominent hair fringes on legs; tibial spurs only in final instar (McLellan et al.2005) ……………………………………………. Notoperla spp. 1’ Anal gill rosette present, all coxa simple …….…… 2 2 Dorsal face of abdomen with raised processes ……. 3 2 ʹ Dorsal face of abdomen at most with slightly elevated middle portion of rear margins but without raised processes, mostly completely simple ………………… 7 3 Abdominal processes unpaired ……………………… 4 3 ʹ Abdominal processes paired …………………………. 5 4 Sprawler habitus, distinct hair fringes on legs, gill rosette small; abdominal processes small, on some segments indistinct, thorax simple; abdominal sternites with dense cover of short erect hairs (friction pad?); lower face of all coxae entirely unsclerotised, a soft transparent membrane through which the muscles are clearly visible ………. Senzilloides panguipullii (Navás) 4 ʹ Perambulatory larvae, no distinct hair fringes; dorsal processes on ... |
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