Neotrichia collierorum Armitage and Harris, 2018

Armitage, Brian J. & Harris, Steven C., 2018, The Trichoptera of Panama V. Descriptions of new species, new country records, and a synonymy, Insecta Mundi 604, pp. 1-11 : 4-7

Neotrichia collierorum Armitage and Harris , new species

Fig. 6

Description: Holotype male. Length 2.1–2.3 mm, 18 antennal segments, brown in alcohol. Abdominal segment VIII annular. Segment IX incomplete dorsolaterally, widening posteromesally, rounded

anteriorly; dorsally fused with tergite X and deeply incised laterally, bearing subapical setal-bearing lobes, medially rounded posteriorly, concave anteriorly; in ventral view shallowly incised on posterior margin, thin suture lines laterally, converging medially, deeply incised anteriorly. Tergite X narrow, with pair of elongate, symmetrical, horns distally, basally fused with segment IX; in lateral view apical horn elongate, gradually tapering to acute apex, small ventral seta near base. Subgenital plate in lateral view wide basally, narrowing distally to downturned sclerotized apex bearing elongate subapical seta; in ventral view narrow basally, apex thin with small downturned point, pair of thick setae on either side, subapically with wing-like, tapering lateral processes. Bracteoles bifid, dorsal branch slightly longer than ventral branch, bearing short setae apically. Inferior appendages widening medially with short tooth, sharply narrowing apically with small teeth ventrally at apex; in ventral view elongate and thin, curving inward subapically to form point, apically narrowing and bearing stout seta, narrow sclerotized ridge on ventral surface, mesal processes short, wide basally, narrowing distally and bearing elongate apical seta. Phallus tubular in lateral view, constricted at mid-length and bearing thin paramere encircling shaft, posterior portion narrowing apically with small hook subapically; apex in dorsal view with elongate unsclerotized spike, ejaculatory duct protruding distally.

Female. Unknown.

Type material. Holotype, male— PANAMA, Chiriquí Province, Cuenca 108, Quebrada Jaramillo, Alto Jaramillo Road , 8.76671°N, 82.41341°W, 1253 m, 10 February 2015, B. and T. Armitage ( COZEM) . Paratypes —ibid., upper bridge, 8.77427°N, 82.40699°W, 1470 m, 2 March 2015, B. and T. Armitage, 1 male ( COZEM) ; tributary to Quebrada Jaramillo, Alto Jaramillo Road, 8.76671°N, 82.41519°W, 1300 m, 11 November 2015, B. and T. Armitage, 1 male ( BJA) .

Etymology. Named for Kelly and Laurie Collier of Finca Monterey, Jaramillo Mountain, Boquete, Chiriqui Province, Panama, for their enthusiasm for and assistance with our collections.

Remarks. Neotrichia collierorum is a member of the canixa Group of Keth et al. (2015) based on the apical horns of the tenth tergite and the bifid bracteoles, both characteristic of the group. The new spe- cies has some similarity to N. maria Bueno-Soria and Hamilton from Oaxaca, Mexico in the structure of the phallus and subgenital plate, but differs from this species and other Neotrichia in the elongate “horns” of the tenth tergite and the structure of the inferior appendages.

Figures

Figure 6. Neotrichia collierorum, n. sp., male genitalia. A) Lateral view. B) Dorsal view. C) Ventral view. D) Phallus, lateral view. E) Phallus apex, dorsal view.