Teloganodes sartorii Selvakumar, Sivaramakrishnan & Jacobus

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, Zootaxa 3846 (1), pp. 87-104 : 94

Teloganodes sartorii Selvakumar, Sivaramakrishnan & Jacobus , n. sp.

Figs.40–58 .

Materials examined. Holotype: Male larva, India, Tamil Nadu, Salem, Yercaud, Killiyur falls, 11o47’40.05” N, 78o11’59.62” E, 1226 m; 20.VIII. 2010, Colls. C. Selvakumar & K. G. Sivaramakrishnan [ZSI-I/E 11]. Paratypes: Five larvae, same data as holotype [ZSI-I/E 12]; 15 larvae, same data as holotype [UM].

Description. Larva.

Body length 4–6 mm without cerci. Cerci slightly longer than body length. General dorsal colouration of head, thorax and abdomen darkbrown; sterna and legs uniformly yellowish. Eyes of male larva yellow and black ( Fig. 40 ).

Head: Outer margin of head fringed with regular row of setae from behind eyes to labrum insertion. Antennae long, 1.2 times head width, flagellum with 19–20 segments. Mouthparts similar to those of T. kodai ( Figs. 41–46 ).

Thorax: Pro and meso thorax with 6 rounded tubercles on dorsal face. Legs not similar in shape and without ornamentation; femoral submarginal row of short and blunt setae present. Forefemur moderately broad, ca. 1.5 times longer than wide; outer margin covered by thick, long setae and pointed setae ( Fig. 47 ); two clusters of thin setae on apex ( Fig. 50 ); 6–8 short and blunt setae on middle of dorsal surface; inner margin with row of long and thin setae, row continuing to dorsal face, close to articulation with trochanter. Mid and hind femora similar, slender, ca. 2 times longer than wide; dorsal margins each with row of long and stout setae and inner margins each with row of short, stout setae ( Figs. 48, 49 ). Tibia and tarsal claw as in T. kodai ( Fig. 51 ).

Abdomen: No posterolateral projections on segments I–II, poorly developed on segments on segments II–VI, moderately developed on segments on segments VII–IX ( Fig. 52 ). Tergal tubercles as in T. kodai ( Fig. 53 ). Lateral margins of terga with short and thin setae. Gills on abdominal segments II–VI as in T. kodai ( Figs. 54–58 ). Cerci with whorl of spineson every segment; spines shorter than length of corresponding segment.

Winged stages. Unknown.

Etymology. This species is named after Dr. Michel Sartori in recognition of his major contribution to our knowledge of Oriental Teloganodidae .

Diagnosis. The larva of T. sartorii , n. sp., can be distinguished from the apparently similar species T. kodai by the following combination of characters: (i) legs not similar in shape and without ornamentation ( Figs 47–49 ); (ii) outer margin of the forefemora having a row of thick setae and two clusters of thin setae on apex; ( Fig. 50 ); (iii) antennae long, 1.2 times head width, flagellum with 19–20 segments; and (iv) cerci with whorl of spines on every segment; spines shorter than length of corresponding segment.

Figures

FIGURES 40 – 46. Teloganodes sartorii, n. sp. 40. Male larva, dorsal habitus; 41. Labrum; 42. Hypopharynx; 43. Maxilla; 44. Labium; 45. Left mandible; 46. Right mandible.

FIGURES 47 – 58. Teloganodes sartorii, n. sp. 47. Foreleg; 48. Midleg; 49. Hindleg; 50. Forefemur (arrow indicates two clusters of thin setae on apex); 51. Claw; 52. Abdomen, ventral view; 53. Abdominal median tubercles; 54 – 58. Gills II – VI.