Costatrichia calovebora, Harris & Armitage, 2023

Harris, Steven C. & Armitage, Brian J., 2023, The Trichoptera of Panama XXII. Sixteen new microcaddisfly species (Trichoptera, Hydroptilidae), ZooKeys 1174, pp. 35-74 : 35

Costatrichia calovebora sp. nov.

Fig. 8

Type locality.

Panama: Veraguas Province: Cuenca 097; Santa Fe District; Santa Fe NP; Río Calovébora; PSPSCB-PNSF-C-097-2017-005; 8.54318°N, 81.16398°W; 536 m a.s.l.

Type specimen.

Holotype: male, Panama: Veraguas Province: Cuenca 097; Santa Fe District; Santa Fe NP; Río Calovébora; PSPSCB-PNSF-C-097-2017-005; 8.54318°N, 81.16398°W; 536 m a.s.l.; Malaise trap; T. Ríos, E. Álvarez, C. Nieto, leg.; 19-23.iv.2017; MIUP-006-T-2023 (in alcohol).

Diagnosis.

This species is most similar to three other species ( C. tripartita Flint from Costa Rica and Panama, and C. carara Holzenthal & Harris and C. venezuelensis Flint, both reported from Costa Rica; Holzenthal and Calor 2017), all of which have a tripartite inferior appendage. It differs from these species in the structure of the inferior appendage, the lack of mesoventral horns on abdominal segment VIII, which are found in C. carara and C. venezuelensis , and in the poorly formed spines of the phallus.

Description.

Male. Total length 3.5 mm, head missing, forewing with elongate costal bulla, body and wings brown in alcohol. Genitalia. Abdominal segment VII annular with prominent ventromesal process. Segment VIII triangular, reduced dorsally; in ventral view elongate, posteriorly with deep incision. Segment IX generally quadrate, truncate anteriorly, posterior margin slanted, with dorsal knob, laterally with seta-bearing process; in ventral view narrow; in dorsal view enclosed within VIII, anteriorly with shallow emargination, lateral margins sclerotized. Segment X reduced to a short shelf in lateral view; dorsally rounded and membranous. Inferior appendage divided into three elongate processes, dorsalmost process thin and extending ¾ length of mesal and ventralmost processes, narrowing distally, ventralmost process rectangular, truncate distally, mesal process widening at midlength, then abruptly tapering to acute apex; in ventral and dorsal view mesal process tapering apically, slightly longer than ventralmost process which is club-like apically, lateral process about half length of others and tapering distally. Phallus in lateral view wide basally and subapically, narrow at midlength complex which bears sclerotized window and basal loop, subapical spine which is poorly formed and blunt apically; in dorsal view lacking acute spines, subapically divided into pair of elongate flattened plates.

Distribution.

Panama.

Etymology.

This species is named for the Río Calovébora watershed, where the species was collected.

Figures

Figure 8. Costatrichia calovebora sp. nov., male holotype, genitalia A left lateral B dorsal C ventral D phallus apex, dorsal E phallus apex, left lateral.