Crassabwa Lugo-Ortiz & McCafferty 1996
Creators: name: Kluge, Nikita J.
name: Gattolliat, Jean-Luc
name: Salles, Frederico F.
name: Novikova, Eugenia A.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Ephemeroptera
Baetidae
Crassabwa

description: Key to larvae of Crassabwa /g1
1. Larva of Baetidae with the following combination of characters: Claw shallowly bent, with 2 rows of denticles (Figs 19, 70). Labial palp «chelate», i.e. with inner-apical projection of 2nd segment (Figs 5, 69). Hind protoptera present, i.e. winged stages have hind wings....................................................................................... 2
- Some of these characters absent: either claw sharply bent and/or with 1 row of denticles, or labial palp non-chelate (i.e., without inner-apical projection of 2nd segment), or hind protoptera absent or vestigial (i.e. winged stages have no hind wings)............................................................................................ other Baetidae.
2. Outer side of each femur, besides a row of stout setae, with 2 stout subapical setae brought together (Kluge 2016: Figs 21, 25, 26). This combination of characters is present in the following taxa: (1) New World genus Paracloeodes Day 1955, belonging to Baetovectata (in larva patella-tibial suture on fore leg present, in adult fore wing with 2 marginal intercalaries per space); (2) Old World genus Cheleocloeon Wuillot & Gillies 1993a, belonging to Anteropatellata-non-Baetovectata (in larva patella-tibial suture on fore leg present, hind protoptera only in male, in adult fore wing with 1 marginal intercalary per space); (3) Afrotropical genus Bugilliesia Lugo-Ortiz & McCafferty 1996c, belonging to Protopatellata (in larva patella-tibial suture on fore leg absent, in adult fore wing with 1 marginal intercalary per space); and (3) poorly known species Delouardus djabala Lugo-Ortiz & McCafferty 1999 in Madagascar. - Outer side of each femur, besides a row of stout spatulate setae, with 1 stout spatulate subapical seta (Fig. 18). Members of Protopatellata: in larva patella-tibial suture on fore leg absent (Figs 13–15), in adult fore wing with 1 marginal intercalary per space (Fig. 50). Claw with two most distal denticles of each row enlarged (Figs 19, 70) (Crassabwa /g1)................. 3
3. Tergalius I in proximal half with anal margin concave and armed by slender rib, without portion bent ventrally (Figs 20, 72). Abdominal terga II–VI either without denticles, or with irregular denticles alternating with scales (Fig. 37) (Susua)........ 4
- Tergalius I in proximal half with anal margin convex, not bordered by rib; in last larval instar its anal portion usually bent ventrally (Kluge et al. 2017: Figs 23, 84). Abdominal terga I–X with regular row of pointed denticles on posterior margin (Kluge et al. 2017: Fig. 20) (Crassabwa)......................................................................... 5
4. Tergalius I as long as tergalius II (Figs 20–21). Mesonotum with sharply projected median ridge (Fig. 41). Pronotum with 1 pair of tufts of spatulate setae, mesonotum with 2 or more pairs of tufts of spatulate setae (Figs 28–31). Legs relatively slender (Figs 13–15).............................................................................. Susua sigiensis
- Tergalius I much longer than tergalius II (Figs 72–73). Mesonotum without prominent median ridge (Fig. 78). Pronotum and mesonotum without tufts of spatulate setae (Fig. 87). Legs relatively thick (Figs 91–93)............... Susua niandanensis
5. In last instar larva, cuticle of fore protopteron with dark lines corresponding to convex longitudinal veins only (Kluge et al. 2017: Fig. 4). Mola of left mandible with even row of denticles (Kluge et al. 2017: Fig. 8)............... Crassabwa flava
- In last instar larva, cuticle of fore protopteron with dark lines corresponding to convex, concave and cross veins (Kluge et al. 2017: Fig. 62). Mola of left mandible with tubercles bearing denticles (Kluge et al. 2017: Fig. 81)..................... 3
6. Claw relatively short, with portion from distal denticle to apex shorter than portion from distal denticle to base (Kluge et al. 2017: Figs 66, 95)..................................................................... Crassabwa ludmilae
- Claw relatively long, with portion from distal denticle to apex longer than portion from distal denticle to base (Kluge et al. 2017: Fig. 126)........................................................................ Crassabwa ameliae
description: Published as part of Kluge, Nikita J., Gattolliat, Jean-Luc, Salles, Frederico F. & Novikova, Eugenia A., 2018, Revision of the Afrotropical genus Susua Lugo-Ortiz & McCafferty 1998 (Ephemeroptera: Baetidae: Protopatellata), pp. 1-28 in Zootaxa 4434 (1) on pages 26-27, DOI: 10.11646/zootaxa.4434.1.1, http://zenodo.org/record/1290842