Neotrichia espinosa Armitage and Harris, 2020

Armitage, Brian J. & Harris, Steven C., 2020, The Trichoptera of Panama XIV. New species of microcaddisflies (Trichoptera: Hydroptilidae) from Omar Torrijos Herrera National Park, Insecta Mundi 763, pp. 1-19 : 5

Neotrichia espinosa Armitage and Harris , new species

Fig. 9

Diagnosis. Neotrichia espinosa has a pair of elongate dorsal spines from abdominal segment IX, which are similar to the single process seen in N. carlsoni Harris and Armitage , N. botka Olah and Johansen and N. hiaspa (Mosely) . However, the elongate, apical rods of the phallus in these species are unequal in length, whereas they are equal length in the new species, similar to those of N. gotera Flint and N. longissima Flint.

Description. Length 1.6–1.9 mm, 18 antennal segments, and overall color brown (in alcohol). Abdominal segment VIII annular.

Male genitalia. Segment IX complete dorsolaterally, fused with tergite X dorsally, posterior margin with pair of elongate, spine-like processes dorsolaterally, dorsal-most process narrow over length, ventralmost process wide basally, narrowing to acute apex, anteriorly narrowing into elongate apodeme; in dorsal view, dorsal-most processes thin and elongate, ventral-most processes more lateral in position, wide basally then tapering to acute distal apex; in lateral view truncate with medial process, anterior margin deeply incised. Segment X lobate in lateral view, dorsally short and membranous, inconspicuous. Subgenital plate in lateral view wide basally, abruptly narrowing distally to tapering process; in ventral view triangular, pair of lateral setae apically. Bracteole narrow basally, widening and parallel-sided distally; in dorsal and ventral views rectanguloid, apically acute with serrate inner margin. Inferior appendages very thin and elongate, slightly upturned apically; in ventral view, very thin over length, extending to apex of bracteoles. Phallus tubular, narrowing at midlength and bearing paramere encircling shaft, distally divided into pair of elongate, sclerotized processes, which are equal in length.

Female and larva. Unknown.

Type material. Holotype male. Panama, Coclé Province, Cuenca 134, Omar Torrijos Herrera National Park , Quebrada Las Yayas , PSPSCB-PNGDOTH-C134-2017-004, 8.66168°N and 80.5952°W, 602 m, UV light trap, 25 March 2017, E. Álvarez, E. Pérez, and T. Ríos (COZEM) . Paratypes. ibid., 2 males (MIUP) ; ibid., Cuenca 105, PSPSCB-PNGDOTH-C103-2017-002, affluente Quebrada Corazones, 8.67801°N and 80.60006°W, 792 m, UV light trap, 24 March 2017, A. Cornejo, T. Ríos, and E. Pérez, 4 males (COZEM, MUPADI, SCH) .

Etymology. espinosa is Spanish for spiny, referring to the elongate spines from abdominal segment IX.

Figures

Figure 9. Neotrichia espinosa, sp.n. Male genitalia. A) Lateral view. B) Ventral view. C) Dorsal view. D) Phallus, lateral view. E) Phallus, dorsal view.