Cretevania Rasnitsyn 1975
Key to the known species of Cretevania (updated from Li et al., 2018) 1. Forewing with pterostigma short (2r-rs about as long as its distance to pterostigma base), two r-m veins and 2m-cu absent. 2 - Forewing with pterostigma long (2r-rs much shorter than its distance to pterostigma base). 3 2. Fore...
| Main Authors: | , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://zenodo.org/record/8073086 https://doi.org/10.5281/zenodo.8073086 |
| Summary: | Key to the known species of Cretevania (updated from Li et al., 2018) 1. Forewing with pterostigma short (2r-rs about as long as its distance to pterostigma base), two r-m veins and 2m-cu absent. 2 - Forewing with pterostigma long (2r-rs much shorter than its distance to pterostigma base). 3 2. Forewing with 1-Rs subvertical to R, 1cu-a interstitial. C. cyrtocerca (Lebanese amber) - Forewing with 1-Rs vertical to R, 1cu-a postfurcal. C. tenuis (Burmese amber) 3. Forewing with 2m-cu present. 4 - Forewing with 2m-cu absent. 5 4. Forewing with 2r-m, 2-Rs+M present. C. minor (Taimyr amber) - Forewing with 2r-m, 2-Rs+M absent. C. venae (Huangbanjigou, Yixian Formation) 5. Forewing with 1cu-a postfurcal, cell 2cua present, 2Rs+M present (small). Cretevania kachinensis sp. nov. (Burmese amber) - Forewing with 1cu-a interstitial, cell 2cua absent or not closed, 2Rs+M absent. 6 6. Forewing with 2r-m indistinct, 2Rs+M absent, 2rm triangle, nearly as wide as 1mcu. C. vesca (Huangbanjigou, Yixian Formation) - Forewing with 2r-m entirely lost. 7 7. Forewing with 1cu-a postfurcal. 8 - Forewing with 1cu-a interstitial or lost. 10 8. Forewing with 1-Rs subvertical to R and Rs+M, 2r-rs long, marginal cell 3r nearly as long as 1+2r. C. mitis (Huangbanjigou, Yixian Formation) - Forewing with marginal cell 3r small triangle, about 1.5× as long as 1+2r. 9 9. Forewing with cell cua broad, wider than 1mcu, free M geniculate distal of 2r-rs, 1-Rs vertical to R. C. montoyai (San Just amber) - Forewing with cell cua narrower than 1mcu, free M geniculate at the same level of 2r-rs, 1-Rs inclined towards wing base. C. alcalai (San Just amber) 10. Forewing with 1cu-a interstitial, nearly as long as 1-M, free M geniculate distal of 2r-rs, 1-Rs inclined towards pterostigma base. C. exquisita (Huangbanjigou, Yixian Formation) - Forewing with 1cu-a entirely lost. 11 11. Antennae short with 10 flagellomeres, mesosoma with notauli present. C. bechlyi (Burmese amber) - Antennae short with 11 flagellomeres, mesosoma lacking notauli. 12 12. Forewing ... |
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