Janohyphella Selvakumar, Sivaramakrishnan & Jacobus
Creators: name: Selvakumar, C.
name: Sivaramakrishnan, K. G.
name: Jacobus, Luke M.
name: Janarthanan, S.
name: Arumugam, M.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Ephemeroptera
Teloganodidae
Janohyphella

description: Janohyphella Selvakumar, Sivaramakrishnan & Jacobus, n. gen.
Figs. 2–20.
Type species: Janohyphella indica Selvakumar, Sivaramakrishnan & Jacobus, n. sp.
Description. Larva (Fig. 2).
Head: Outer margin of head fringed with row of simple setae from behind eyes to labrum insertion (Fig. 3). Labrum short and broad; width less than 3 times length; distal margin broadly emarginate, with dense, fine, moderately long feathered setae; dorsal surface with scattered simple setae forming irregular row (Fig. 4). Hypopharynx with lingua and superlinguae subequal in length; lingua distally somewhat truncate to slightly coneshaped, not notched at apex; superlinguae broadly rounded distally (Fig. 5). Mandibles narrow, outer incisors separate and divergent; inner incisor of left mandible pointed, that of right mandible absent; with sparse mediolateral setae; otherwise with many slender long hair-like setae evenly distributed (Figs. 6, 7). Maxillae slender, with well-developed canine and two dentisetae; two clusters of long setae apically; inner margin smooth; outer margin at base with minute hairs laterally; maxillary palp reduced to articulated palp (Fig. 8). Labial palp segment 3 reduced in size; with relatively well-developed glossae and paraglossae; paraglossae somewhat bluntly pointed medioapically (Fig. 9). Submentum evenly rounded and lateral margin with sparse row of fine, short, hair-like setae.
Thorax: Prosternum without medial, bilobular, spiny process (Fig. 3) (see Fig. 65 of McCafferty & Wang (1997) for prosternum with medial, bilobular, spiny process). Forefemur very broad and without transverse row of setae (Fig. 10); midfemur broad with transverse row of spatulate setae (Figs. 11, 12); hindfemur slender and without transverse row of setae (Fig. 13). Tarsal claws sharply curved, without denticles. Forewing pads with slight basal fusion (Fig. 14).
Abdomen: Gills I small, single, two segmented and fibrilliform (Fig. 14); lamellate gills on abdominal segments II–V (Figs. 15–18); gills II operculate, appearing broadly rounded with median horizontal cleft on dorsal lamella (Fig. 15). Terga with two small tubercles separated by concave margin on segmentsII–VIII (Figs. 2, 19, 20), and with posterolateral processes well-developed on segments II–IX but not segment III (Fig. 20). Caudal filaments banded, fringed with lateral hairs. Median caudal filament length subequal to cerci.
Winged stages. Unknown.
Etymology. Janohyphella, n. gen., is an arbitrary combination of letters, with reference to Dr. Janice Peters, in honour of her significant contribution to the study of Oriental Ephemeroptera.
Diagnosis. Janohyphella, n. gen., can be distinguished from all other genera of the Teloganodidae by the following combination of characters. In the larvae: (1) no reduction of median caudal filament (Fig. 2); (2) single, fibrilliform gills on abdominal segment I coupled with presence of lamellate gills on abdominal segment II–V (Figs. 14–18); (3) terga with two small tubercles separated by concave margin on segments III–VIII and with posterolateral processes well developed on segments II–IX, remarkably absent on segment III (Figs. 19, 20); (4) only midfemur has a transverse row of setae (Fig. 12); (5) tarsal claws sharply curved, without denticles (Fig. 13) and (6) mandible with sparse medio-lateral cluster of setae (Figs. 6, 7).
Janohyphella, n. gen., is similar to the genus Manohyphella, but the new genus can be distinguished from it (see McCafferty & Benstead, 2002) by the following combination of characters in the larva: (1) terga with two small tubercles separated by concave margin on segments III–VIII and with posterolateral processes well developed on segments II–IX except segment III (Figs. 19, 20); (2) transverse row of setae only in midfemora (Fig. 12); (3) tarsal claws sharply curved, without denticles (Fig. 13) and (4) mandible with relatively sparse mediolateral setae (Figs. 6, 7).
Species Composition.
Janohyphella indica Selvakumar, Sivaramakrishnan & Jacobus, n. sp. (India)
Distribution. India (restricted to the Western Ghats).
description: Published as part of Selvakumar, C., Sivaramakrishnan, K. G., Jacobus, Luke M., Janarthanan, S. & Arumugam, M., 2014, Two new genera and five new species of Teloganodidae (Ephemeroptera) from South India, pp. 87-104 in Zootaxa 3846 (1) on pages 88-89, DOI: 10.11646/zootaxa.3846.1.4, http://zenodo.org/record/249885