Trichogenia ulmeri Braasch & Webb N.

Webb, J. M., Braasch, D. & Mccaferty, W. P., 2006, Reevaluation of the Genera Compsoneuria Eaton and Trichogenia Braasch & Soldán (Ephemeroptera: Heptageniidae), Zootaxa 1335, pp. 55-68 : 66

Trichogenia ulmeri Braasch & Webb N. SP.

Compsoneuria spectabilis Eaton (larva nec adult); (misid.) Ulmer, 1939:675

Larval Description: see Ulmer (1939).

Adult: unknown.

Etymology: The specific epithet is in honor of the late Georg Ulmer.

Diagnosis: Trichogenia ulmeri can be differentiated from congeners by the following combination of characteristics: i) anterior surface of femora with both long and short robust setae ( Fig. 13 ); ii) presence of comb setae on apical margin of maxillae; iii)long supracoxal spines on the meso- and metathorax; iii) abdominal terga with sparse branched, robust setae, most occurring near posterior margin.

Material Examined: HOLOTYPE: 1larva, Indonesia, Sumatra, Ranau, Urwaldbach, R25c, 29-I-1929, Thienemann [ ZMUH]. PARATYPES: INDONESIA: 1 larva, same data as holotype [ ZMUH]; 2 larvae, Indonesia, E. Kalimantan, Long Tua, Tua cr, 3°10'N 115°47'E, 440m, 7-IV-1994, B Hubley, IIS 940541 [ ROM].

Figures

FIGURE 11 – 13. 11 – 12, T. maxillaris, 11, hypopharynx: a. dorsal b. ventral; 12, labial palp: dorsal view of terminal segment. 13, T. ulmeri, hind femur: setae on middle section of anterior face.