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

Oxyethira (Dampfitrichia) calori sp. nov.

Fig. 1A–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 C).

Male genitalia: Segment VIII annular, covered with setae; sternum with deep posteromesal incision ( Fig. 1A ); tergum subrectangular with posterior margin concave ( Fig. 1 B). Segment IX retracted in segment VIII, with anterior margin truncate ( Fig. 1A ); tergum reduced. Inferior appendages short, digitiform ( Fig. 1A ), 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 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 B, darker structure); in lateral view, tall and lobate. Bilobed process with each lobe elongate, almost straight, with small apical seta ( Fig. 1A ). Tergum X membranous. Phallus simple, bearing subapical, bifurcate, and curved sclerite; ejaculatory duct not protruding ( Fig. 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: Barreiras, Cachoeira Acaba Vidas , 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).

Figures

FIGURE 1 A – 1 D. Oxyethira calori sp. nov. Male genitalia: 1 A, ventral; 1 B, dorsal; 1 C, left lateral; 1 D, phallus, dorsal.