Maruina (Maruina) kallyntrona, Camico & Cordeiro & Chagas, 2019

Camico, Jéssica Luna, Cordeiro, Danilo Pacheco & Chagas, Cínthia, 2019, Maruina Müller, 1895 (Diptera: Psychodidae): description of four new species from Brazil, with revised diagnoses for the genus and subgenera, Zootaxa 4652 (2), pp. 296-316 : 309-310

Maruina (Maruina) kallyntrona sp. nov.

( Figs. 41–47 )

Diagnosis. Combination of the following characters: wing apex long and narrow, with distance from R 5 to R 4 almost 2X the distance from R 4 to R 3; hypandrium expanded medially in a triangular sclerite pointing posteriorly and with sinuous anterior margin; aedeagal sheath with lateral sclerotized areas connected medially; tenaculum distally fimbriated, resembling a hair-brush; female hypogynium with very narrow lobulae.

Description. Male. Head ( Fig. 41 ): distance between eyes equivalent to 9 facet diameters, interocular suture present, frons with two patches of setae on lateral gibbosity near antenna insertion; antenna with scape longer than pedicel, 13 flagellomeres, 2–12 with ascoids; palp segment 4 with two apical setae, palpus formula: 1.0:1.3:1.3:2.1. Wing ( Fig. 42 ): C with break on anterior margin, at the level of base of R 1, R 2 united to R 4 and R 5, R 3 short, R 5 infuscate ending at wing apex, M 1 united to M 3, M 2 incomplete, Wing length 1,46 mm, maximum width 0,195 mm. Terminalia ( Figs. 43–45 ): hypandrium well sclerotized, expanded medially in a triangular sclerite pointing posteriorly and with sinuous anterior margin, resembling a hang-glider, which is continuous with sclerotized aedeagal sheath by a membranous area; gonocoxite with approximately 7–8 setae on dorsal surface, gonostylus simple; aedeagus with anterior long and thin straight spines and a pair of posterior short and thick dagger-like spine; aedeagal sheath with lateral sclerotized areas connected medially by a large distal sclerotized area; ejaculatory apodeme oval; epandrium around 2X wider than long with a single small central aperture, basally with anterolateral arms that extends dorsally until the hypandrium, apical margin concave; subepandrial sclerite V-shaped, anterior portion where arms meet rounded and faint; epiproct largely visible with micropilose caudal digitiform projection medially; hypoproct subquadrate with posterior margin straight; epandrial appendage with a single tenaculum at apex, distally fimbriated, resembling a hair-brush.

Female. Similar to male except: Head: antenna incomplete, palpus formula: 1.0:1.3:1.4:2.5. Wing: length 1,73 mm, maximum width 0,265 mm. Terminalia ( Figs. 46–47 ): hypogynial valve with apical lobes narrow and approximately eight true setae inserted apically, internal lateral bristles projecting medially from distinct and small posterolateral lobulae.

Type material. Holotype: ♂ BRAZIL, Roraima, Amajari, Serra Tepequém , 10-12.vi.2010, malaise, col. J. A. Rafael; F. F. Xavier; R. Machado; R. Freitas ( INPA) ; Paratypes: 6 ♀♀, 8 ♂♂ same data .

Etymology. From Greek kallyntron, meaning ‘broom, brush’, in reference to the hairbrush like tenaculum.

Distribution. Brazil (Roraima).

Holotype condition. Slide mounted, head and wings separated from thorax, antenna complete, terminalia in dorsal view.

Remarks. Among Maruina (Maruina) species, only M. (M.) lanceolata , known from British Columbia ( Canada), California ( USA) and Baja California ( Mexico), also has antenna with only 13 flagellomeres. M. (M.) kallyntrona can be differentiated from M. (M.) lanceolata by the wing apex, which is conspicuously elongated after R 4 in the first. The long and apically fimbriated tenaculum is also found in M. (M.) dama Hogue, 1973 , but the two species can be differentiated by the number of flagellomeres (14 in M. (M.) dama ) and morphology of aedeagal spines.

Figures

FIGURE 41–47. Maruina (Maruina) kallyntrona. 41. Male head, frontal view. 42. Wing. 43–45. Male terminalia. 43. Dorsal view, aedeagal spines retracted. 44. Dorsal view, aedeagal spines everted. 45. Detail of aedeagal spines retracted. 46–47. Female terminalia. 46. Photograph showing hypoginium, cerci and internal spermathecal complex, dorsal view. 47. Detail of hypoginium and spermathecal complex Abbreviations. ash=aedeagal sheath; asp=aedeagal spines; eap=epandrial appendage; eja=ejaculatory apodeme; gpd=gonocoxal apodeme; gt=gonostylus; gx=gonocoxite; hpg=hypoginium; lob=lobule of hypoginal valve; ten=tenaculum.