Borinquena sexta (Kluge, 1994)

L, Carlos Naranjo, Peters, Janice G., del, Pedro López & Castillo, 2019, Ephemeroptera (Insecta) in Cuba, Insecta Mundi 2019 (736), pp. 1-52 : 12

A.17. Borinquena sexta (Kluge, 1994)

Figures 9 , 47, 48 .

Hagenulus (Borinquena) sextus Kluge 1994:261 (male and female imagos, nymph, egg).

Holotype. Male imago, Province Santiago de Cuba, Arroyo Paco ( Río Palma Mocha ), 24-II-1989, N. Kluge.

Described by Kluge (1994), nymphs have very narrow gills and are recognized by the third segment of the labial palp which is about half the length of the second segment. Abdominal coloration is generally pale with a narrow dark posterior border and small lateral markings on abdominal terga.

Ecology. This species is found in cold water rivers at altitudes between 300 and 1750 m. It is especially abundant at these higher altitudes in Paco Creek, a tributary of the Río Palma with its source on Turquino Peak. We have also found many nymphs from headwater streams of Bayamesa National Park ( López et al. 2004).

Geographic distribution. Specimens have been collected in the Eastern and Central-East regions of Cuba ( Fig. 9 ). From the headwater of two streams in Bayamesa National Park , we collected 31 nymphs in two microhabitats (running water and pools) in the rainy season ( López et al. 2004). From collections examined for this work, misidentified material was discovered as follows: 2 nymphs, Province Holguín, Río Mayarí , 28-I-2001 and 3-XII-1998, col. Aldana and Fonseca ; 1 nymph, Province Camagüey, Río Máximo , 12-II-2003, col. O. Bello ( Bello 2004) .

Figures

Figures 6–9. Distribution records for Ephemeroptera in Cuba.6) Paracloeodes lilliputian. 7) Farrodes bimaculatus. 8) Hagenulus caligatus, H. morrisonae. 9) Borinquena sexta, Turquinophlebia grandis, Poecilophlebia pacoi.

Figures 47–52. Leptophlebiidae. 47) Labial palpi comparing segmentation ratios of Careospina hespera hespera and Borinquena sexta. 48) Borinquena sexta. 48a) Terga 6–10. 48b) Habitus. 49) Careospina evanescens, terga 3–10. 50) Careospina baconaoi. 50a) Male, terga 5–10. 50b) Female, terga 6–9. 51) Careospina hespera hespera, terga 5–10. 52) Careospina hespera sierramaestrae. 52a) Terga 3–10. 52b) Gill. 52c) Foreclaw. 52d) Habitus. Figure 51 after Peters 1971.