Caribaetis planifrons (Kluge, 1992)

L, Carlos Naranjo, Peters, Janice G., del, Pedro López & Castillo, 2019, Ephemeroptera (Insecta) in Cuba, Insecta Mundi 2019 (736), pp. 1-52 : 7

A.5. Caribaetis planifrons (Kluge, 1992)

Figures 4 , 24c, 25b, 30 , 31 .

Baetis (Caribaetis) planifrons Kluge 1992a:15 (male and female imagos, nymph, egg,).

Fallceon planifrons ; Lugo-Ortiz, McCafferty and Waltz 1994:487.

Caribaetis planifrons ; Kluge and Novikova 2014:232.

Holotype. Male imago, [Province Artemisa], Soroa , 1-IV-1989, N. Kluge.

Kluge (1992a) established the subgenus Caribaetis within the genus Baetis Leach for two species described from Cuba which differed from Fallceon by the presence of an apical seta on the claw and the absence of a keel between antennal bases. The species were easily distinguished by color pattern. Later, Lugo-Ortiz et al. (1994) synonymized the subgenus Caribaetis with Fallceon and transferred two Cuban species ( Caribaetis planifrons and C. alcarrazae ) to Fallceon ; in 2014, Kluge and Novikova recognized the generic status of Caribaetis .

Ecology. Cañizares (1998) considers this a very abundant species frequently collected in Cuban rivers. Like nymphs of many Baetidae , it is most common in backwaters of stony and stony-sandy rivers with crystal clear waters at a depth between 20 and 40 cm ( Kluge 1992 a, Cañizares 1998, Benítez 2007). Previously, Naranjo (1986) remarked upon the reduced abundance of C. planifrons at higher altitudes. In the literature, there are records from low and high altitudes, but it is most often collected below 500 m. Mature nymphs have been collected throughout the year indicating that the life cycle is non-seasonal.

Geographic distribution. Caribaetis planifrons is found throughout all regions of Cuba (Lugo-Ortiz et al. 1994, Cañizares 1998, Naranjo and Cañizares 1999, Benítez 2007) ( Fig. 4 ), Jamaica ( Naranjo and Peters 2016) and Nicaragua ( Meyer et al. 2008.)

Figures

Figures 1–5. Distribution records for Ephemeroptera in Cuba. 1) Major geographic regions of Cuba (Núñez 1989). 2) Americabaetis naranjoi, Callibaetis floridanus. 3) Cloeodes inferior, C. superior. 4) Caribaetis alcarrazae, C. planifrons, C. grandis. 5) Fallceon longifolius, F. poeyi, F. testudineus, F. sextus.

Figures 24–30. Baetidae. 24) Front of head. 24a–b) Fallceon poeyi with keel. 24c) Caribaetis planifrons. 25) Foreclaw. 25a) Fallceon poeyi. 25b) Caribaetis planifrons (seta retouched). 26. Labium. 26a) Fallceon testudineus. 26b) F. sextus. 27) Abdominal gills. 27a–d) Fallceon poeyi. 27e) F. sextus. 27f–g) F. longifolius. 28. Fallceon longifolius, abdomen.28a) Ventral. 28b) Dorsal.29) Fallceon poeyi. 29a) Terga 2–10.29b) Habitus.30) Caribaetis planifrons, dorsal. Figures 26, 27d–f after Kluge (1992b).

Figures 31–35. Baetidae and Oligoneuriidae.31) Caribaetis planifrons¸ habitus. 32)Caribaetis alcarrazae, habitus. 32a) Lateral. 32b) Dorsal). 33. Paracloeodes lilliputian. 33a) Foreclaw. 33b) Habitus. 33c) Detail of marking on lateral abdominal segment 9. 34) Lachlania sp. from Panama. 34a) Ventral head capsule and anterior thorax. 34b) Habitus. 35) Lachlania abnormis, drawing from only Cuban record (Hagen 1868), one of 6 females collected by Ch. Wright.