Oxyethira (Dampfitrichia) calori, De Souza, Wagner Rafael M. & Santos, Allan Paulo Moreira, 2017

De Souza, Wagner Rafael M. & Santos, Allan Paulo Moreira, 2017, Taxonomic study of the genus Oxyethira Eaton 1873 (Trichoptera: Hydroptilidae) from Northeast Brazil: Eleven new species and distributional records, Zootaxa 4236 (3), pp. 484-506 : 485

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Oxyethira (Dampfitrichia) calori

sp. nov.

Oxyethira (Dampfitrichia) calori sp. nov.

Fig. 1A–1 View FIGURE 1 D

Description. Holotype. Length: 2.1 mm. General color pale brown (in alcohol). General pattern of Neotropical Oxyethira . Abdominal sternum VII with posterior mesoventral process ( Figs. 1A, 1 View FIGURE 1 C).

Male genitalia: Segment VIII annular, covered with setae; sternum with deep posteromesal incision ( Fig. 1A View FIGURE 1 ); tergum subrectangular with posterior margin concave ( Fig. 1 View FIGURE 1 B). Segment IX retracted in segment VIII, with anterior margin truncate ( Fig. 1A View FIGURE 1 ); tergum reduced. Inferior appendages short, digitiform ( Fig. 1A View FIGURE 1 ), uniformly sclerotized throughout; in ventral view, positioned between arms of bilobed process, basally fused to segment IX, straight; in lateral view, uniformly slender and slightly upturned ( Fig. 1 View FIGURE 1 C). Subgenital plate conspicuous; in ventral and dorsal views appearing as two lateral arms projecting obliquely anterolaterad and connected apically with transverse band ( Figs. 1A, 1 View FIGURE 1 B, darker structure); in lateral view, tall and lobate. Bilobed process with each lobe elongate, almost straight, with small apical seta ( Fig. 1A View FIGURE 1 ). Tergum X membranous. Phallus simple, bearing subapical, bifurcate, and curved sclerite; ejaculatory duct not protruding ( Fig. 1 View FIGURE 1 D).

Remarks. This species is tentatively placed in the subgenus Dampfitrichia due to the shape of segment IX with its anterior margin truncate, the subgenital plate as an arched band, and the inferior appendages short and digitiform. The new species can be differentiated from other Dampfitrichia species by the absence of a lateral process on segment IX ( Kelley 1983). Oxyethira calori sp. nov. can also be separated from its congeners by the simple phallus, bearing a subapical bifurcate sclerite.

Etymology. This species is named in honor of Dr. Adolfo Calor, trichopterologist and professor at UFBA, who kindly provided many Hydroptilidae specimens from Bahia State.

Material examined. Holotype. BRAZIL: Bahia: GoogleMaps Barreiras, Cachoeira Acaba Vidas   GoogleMaps , 12°8’00”S, 44°59’00”W [approximate coordinates], 14.x.2008, AR Calor col., light trap, 1 ♂ ( DZRJ). Paratype. Same data as holotype, 1 ♂ (MZUFBA).