(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna pm.Tridentiseta  
Tetramerotarsata Liberevenata Turbanoculata
 Anteropatellata Baetovectata Baetungulata - Americabaetis)

Nomen hierarchicum: Americabaetis/g(1) [g:1992]

In circumscription fits:

 subgen. Americabaetis Kluge 1992: 18

 gen. Americabaetis: Lugo-Ortiz & McCafferty 1994: ?

References. Kluge 1992: * *; ...?

Autapomorphies of Americabaetis.


Characters of Americabaetis of unclear phylogenetic status. 

() Hind wings are lost [see Turbanoculata (10)]. Non-unique apomorphy (see Index of characters [2.2.59]).

() Larval antennae bases are not turned together, frons between them does not form a keel (see Index of characters [1.1.3]).

() Paraglossae are strongly (not less than 2 times) wider than glossae and are much longer them. The same in in some other taxa. 

() 2nd (penultimate) segment of labialpalp has large apical-median projection. The same in some other taxa (see Index of characters [1.1.58]).

() Larval abdominal terga with scales in operculate sockets [see Turbanoculata (12)] (see Index of characters [1.3.4]).

Plesiomorphies of Americabaetis.

In mature larva ready to moult to subimago, buds of subimaginal gonostyli are folded under larval cuticle by the "Nigrobaetis-type": 2nd segment of gonostylus is directed posteriorly and curved by its convexity medially and by apex laterally [see Baetovectata (3)] (see Index of characters [2.3.9]). Larval paracercus is developed.

Size. Fore wing length 45 mm (see Tetramerotarsata).

Distribution. America (dominate in Neotropical Region).

Nominal species in Americabaetis/g(1):

alphus Lugo-Ortiz & McCafferty 1996 [Americabaetis]  

boriquensis Lugo-Ortiz & McCafferty 1994 [Acerpenna]  

humilis Hofmann & Thomas (in Hofmann & Sartori & Thomas) 1999 [Americabaetis]  

intermedia Lugo-Ortiz & McCafferty 1994 [Acerpenna]  

 labiosus Lugo-Ortiz & McCafferty 1996 [Americabaetis]  

 longetron Lugo-Ortiz & McCafferty 1996 [Americabaetis]  

 lugoi Waltz & McCafferty 1999 [Americabaetis]  

 maxifolium Lugo-Ortiz & McCafferty 1996 [Americabaetis]  

naranjoi Kluge 1992 [Baetis (Americabaetis)]  typus nominis Americabaetis --/

 pletura Lugo-Ortiz & McCafferty 1994 [Acerpenna]  --/

 robacki Lugo-Ortiz & McCafferty 1994 [Acerpenna]  --/

spinosus Hofmann & Thomas (in Hofmann & Sartori & Thomas) 1999 [Americabaetis]  

 titthion Lugo-Ortiz & McCafferty 1996 [Americabaetis]  

 weiseri Navas 1926 [Pseudocloeon] ?

Examined aso:

 sp. (Jamaica)

 sp. (Argentina)

 spp. (Peru)

See also:


Turbanoculata INCERTAE SEDIS