Torleya lacuna ( Jacobus, McCafferty & Sites, 2007 )

Martynov, Alexander V., Selvakumar, C., Subramanian, K. A., Sivaramakrishnan, K. G., Vasanth, M., Sinha, Bikramjit & Jacobus, Luke M., 2021, Overview of Indian Hyrtanellini (Ephemeroptera: Ephemerellidae), with new species and records from related regions, Zootaxa 4975 (3), pp. 451-482 : 471-472

publication ID

https://doi.org/ 10.11646/zootaxa.4975.3.2

publication LSID

lsid:zoobank.org:pub:222B81FA-E0F5-43A9-960D-5C9ACC2ADD0A

DOI

https://doi.org/10.5281/zenodo.4926488

persistent identifier

https://treatment.plazi.org/id/1D7287CD-FFC6-D666-FF09-0C9F0E07FEA0

treatment provided by

Plazi

scientific name

Torleya lacuna ( Jacobus, McCafferty & Sites, 2007 )
status

 

Torleya lacuna ( Jacobus, McCafferty & Sites, 2007) View in CoL

( Fig. 14 View FIGURE 14 )

Crinitella lacuna Jacobus, McCafferty & Sites, 2007

Material examined. Holotype: larva, THAILAND, Kanchanaburi, stream, Amphur Thong Pha Phum, Heuy Ka Yaeng at Ban Padsadoo Klang , 14°33’N, 98°34’E, 296 m altitude, 9/IV/2003, L-457, Sites, AV, Prommi, Setaphan [ UMRM]. GoogleMaps

Diagnosis. The larva of this species can be distinguished from congeners by the following combination of characters: (i) one pair of blunt occipital protuberances present ( Fig. 14B View FIGURE 14 ; fig. 5 in Jacobus et al. 2007); (ii) head, thorax and legs densely covered with long hair-like setae ( Fig. 14A, B View FIGURE 14 ; fig. 5 in Jacobus et al. 2007); (iii) pronotum with four dorsal protuberances (fig. 5 in Jacobus et al. 2007); (iv) mesonotum with transverse brown shading medially; tip of fore wingpads pale to white, terga with dark longitudinal medial line and lateral shading; (v) terga III–IX, and sometimes tergum II, with paired posterior protuberances; on terga IV–VIII protuberances largest, usually with up to two spatulate, stout setae (fig. 5 in Jacobus et al. 2007); (vi) maxillary palp absent; (vii) posterolateral projections of terga IV–VIII produced dorsolaterally, forming the abdominal gill chamber; (viii) gills distinctly elongated, gill III entirely cover following gills (fig. 5 in Jacobus et al. 2007); (ix) tarsal claws with one or two basal denticles, two or three medial denticles, two to four long subdistal denticles on the inner margin, and subdistal setae; (x) foreleg with submedial row of long spatulate setae.

Distribution. Thailand and Vietnam ( Jacobus et al. 2007). The previous record from India ( Jacobus et al. 2007) is now questionable (see Remarks, immediately below).

Remarks. This species was described by Jacobus et al. (2007) based on larvae and subimagoes from Thailand and Vietnam. These authors also reported male and female subimagoes from Tamil Nadu ( India). The imago stages of T. lacuna are unknown. Previous reports of T. lacuna from India should be reviewed after subimagoes and imagoes of T. dibruensis sp. nov. and T. simbalbarensis sp. nov. have been discovered.

UMRM

W.R. Enns Entomology Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Ephemeroptera

Family

Ephemerellidae

Genus

Torleya

Loc

Torleya lacuna ( Jacobus, McCafferty & Sites, 2007 )

Martynov, Alexander V., Selvakumar, C., Subramanian, K. A., Sivaramakrishnan, K. G., Vasanth, M., Sinha, Bikramjit & Jacobus, Luke M. 2021
2021
Loc

Crinitella lacuna

Jacobus, McCafferty & Sites 2007
2007
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