Cheumatopsyche diversa Thawarorit, Sangpradub & Morse

Thawarorit, Kitiya, Sangpradub, Narumon & Morse, John C., 2013, Five new species of the genus Cheumatopsyche (Trichoptera: Hydropsychidae) from the Phetchabun Mountains, Thailand, Zootaxa 3613 (5), pp. 445-454: 448-449

publication ID

http://dx.doi.org/10.11646/zootaxa.3613.5.2

publication LSID

lsid:zoobank.org:pub:0594D9B7-5D0D-426A-9AE8-642D07E3F24D

persistent identifier

http://treatment.plazi.org/id/EE4587A9-FFF9-FFD1-6DA2-C491FE25FCE3

treatment provided by

Plazi

scientific name

Cheumatopsyche diversa Thawarorit, Sangpradub & Morse
status

sp. nov.

Cheumatopsyche diversa Thawarorit, Sangpradub & Morse   , sp. nov.

Figs. 2 View FIGURE 2 a –d.

Diagnosis. The male genitalia of this species are distinctive among those of any other known species. The pair of broad, transverse, setose carinae on tergum X are especially conspicuous, perhaps homologous with much smaller transverse, setose elevations on tergum X of C. processuata Martynov, 1927   , or possibly C. banksi Mosely, 1942   . However, the apical lobes of tergum X are prominent in dorsal view and separated by a conspicuous cavity, unlike those of the other two species.

Description. (In alcohol) Head and thorax brown, abdominal segments pale cream. Legs pale with coxae and femora pale cream, tarsi light brown. Forewings grey and hind wings light grey.

Wings: Shape and venation characteristic of genus. Male forewing length 6.0– 6.5 mm (n= 6).

Male genitalia: Segment IX in lateral view with anterolateral margins angled 60 ° at 2 / 3 rds height, posterolateral margins setose, straight and sloped. Inferior appendages in lateral view each with basal segment reaching top of tergum X and slightly sinuous, apical segment short and acute ( Fig. 2 View FIGURE 2 c); in caudoventral view with basal segment curved, apical segment broad, apically blunt ( Fig. 2 View FIGURE 2 a). Segment X in lateral view with dorsal margin deeply concave basally, with broad, setose, transversely sloping carina rising above body of tergum, and with apical lobes angled dorsad away from sloping body of tergum ( Fig. 2 View FIGURE 2 c); in dorsal view with median ridge extending length of tergum, interrupting broad transverse carina, apical lobes curved mesad and separated by wide concavity ( Fig. 2 View FIGURE 2 b). Phallus curved in lateral view, its apex broad ( Fig. 2 View FIGURE 2 c); in ventral view with median projection ( Fig. 2 View FIGURE 2 d).

Etymology. The species name is a Latin adjective “diversus (-a –um),” an adjective meaning “different, unlike,” referring to the fact that the male of this species is very different from that of any other known species.

Holotype: Male. THAILAND: Loei Province, Phu Kradueng National Park, Tard Hong Waterfall (N 16 ° 48 ' 11.6 ", E 101 ° 43 ' 25.1 "), elevation 417 m, 9 -iii- 2011, Coll. Kitiya Thawarorit, Teerasak Muakpetch, and Narumon Sangpradub (CU).

Paratypes: THAILAND: Chaiyaphum Province, Phu Khieo Wildlife Sanctuary, Tongto   Stream (N 16 ° 24 ' 48.0", E 101 ° 34 ' 58.9 "), elevation 795 m, 14 -iii- 2011, Coll. Kitiya Thawarorit, Teerasak Muakpetch, and Narumon Sangpradub, 1 male (KKU); Chaiyaphum Province, Phu Khieo Wildlife Sanctuary, Prom Stream (N 16 ° 27 ' 36.6 ", E 101 ° 39 ' 20.5 "), elevation 577 m, 16 -i- 2011, Coll. Kitiya Thawarorit, Teerasak Muakpetch, and Narumon Sangpradub, 1 male (KKU).