Neotrichia rambala Harris and Armitage, 2019

Harris, Steven C. & Armitage, Brian J., 2019, The Trichoptera of Panama X. The Quebrada Rambala drainage, with description of 19 new species of microcaddisflies (Trichoptera: Hydroptilidae), Insecta Mundi 707 (707), pp. 1-54 : 13

Neotrichia rambala Harris and Armitage , new species

Fig. 14

Diagnosis. Neotrichia rambala appears to be a member of the collata group of Keth et al. (2015) based on the prominent projection from the subgenital plate and the elongate segment X. The new species is most similar to N. lacertina Botosaneanu , with some resemblance to N. elongata Flint , N. biuncifera Flint , and N. kurta Olah and Johanson , all of which have elongate inferior appendages and a prominent process from the subgenital plate. With N. lacertina , the new species shares the characteristics of the phallus ending in a single spine and the subgenital plate having a lobate, spinose base. However, the new species differs in the elongate ventral process of the subgenital plate and the bilobed apex of the tenth tergite.

Male. Length 1.8 mm, 18 antennal segments, brown in alcohol. Abdominal segment VIII annular. Segment IX incomplete dorsolaterally, tapering anteriorly, posteriorly truncate; ventrally deeply incised anteriorly and posteriorly. Segment X elongate in lateral aspect, tapering distally to acute apex; dorsally rectanguloid, incised posteriorly, anteriorly fused with segment IX. Subgenital plate complex in lateral view, narrow basally, widening at mid-length, elongate subapical ventral process with acute apex, venter divided into curved toothed process adjacent to ventral projection and lobe bearing stout spike; in ventral view ovoid, truncate distally, with mesal process flanked by setae, basally with pair of lobes tipped with stout spike. Bracteoles lobate, widening gradually to rounded apex; in dorsal and ventral views linear. Inferior appendages wide basally, tapering distally, series of short spines on dorsal margin; in ventral view fused basally, thin and rectanguloid over length, rounded apically, numerous short spines subapically. Phallus elongate and thin in dorsal view, constricted at mid-length and bearing short paramere encircling shaft, apically tubular, narrowing to acute sclerotized apex, ejaculatory duct protruding apically and lightly sclerotized.

Female. Unknown.

Type material. Holotype, male— Panama, Bocas del Toro Province, Quebrada Rambala, near Rambala Jungle Lodge , 3.74 km SSE Rambala, 8.91543°N and 82.15527°W, Malaise trap, November 15–20, 2016, E. Carlson . Paratype. ibid., except February 6–12, 2017, 1 male ( SCH).

Etymology. Named for Quebrada Rambala where the species was collected.

Figures

Figure 14. Neotrichia rambala, sp. n., Male genitalia. A) Lateral view. B) Ventral view. C) Dorsal view. D) Phallus, dorsal view. E) Phallus apex, lateral view.