Scaptomyza mauii Rampasso & O’Grady, 2025

Rampasso, Augusto Santos & O’Grady, Patrick Michael, 2025, Review of Hawaiian Elmomyza species (Diptera, Drosophilidae, Scaptomyza). I. The cyrtandrae, exigua, and obscuricornis species groups, with the descriptions of nine new species, Zootaxa 5729 (1), pp. 1-42 : 38

Scaptomyza mauii Rampasso & O’Grady , sp. nov.

( Fig. 26 )

Diagnosis. Surstylus presents two lobes in posterior view. The dorsal lobe extends medially and posteriorly. In lateral view, the dorsal lobe has a pointed and hooklike projection. The middle portion of the surstylus is straight in posterior view and a well-developed ventral lobe extends medially. A marginal row of ten sharp surstylar teeth is distributed in the middle and ventral portions of the surstylus.

Description. Male (n = 1). Head. Head absent. Thorax. Scutum and scutellum light brown in ground color and densely gray pollinose. 2 pairs of dorsocentral setae. Acrostichal setae in 4 irregular rows when counted between anterior dorsocentral setae, becoming sparse posteriorly. Basal scutellar setae divergent and apical scutellar setae cruciate. Pleura yellow and densely gray pollinose. 1 postpronotal and 3 katepisternal setae present. Anterior katepisternal setae 61% length of posterior katepisternal setae. Legs. Predominantly light brown. Most legs are partially or entirely broken. Wings. Hyaline without distinct pattern. Abdomen. Previously dissected. Male terminalia ( Figs. 26 C-E). Male terminalia light brown. Epandrium is broad, with no anterodorsal phragma, ventral, or posterior lobes. In posterior view, the surstylus presents two lobes. The dorsal lobe extends medially and posteriorly. In lateral view, the dorsal lobe has a pointed and hooklike projection. The middle portion of the surstylus is straight in posterior view and a well-developed ventral lobe extends medially. A marginal row of ten sharp surstylar teeth is distributed in the middle and ventral portions of the surstylus. Cerci undifferentiated. In lateral view, the cercal plates are two times higher than long. Measurements. TL = 0.95 mm; WL = 2.09 mm; TL/WL = 0.46; CI = 3.85; 4V = 2.04; 5X = 2.00; 4C = 0.73; M = 0.58.

Distribution. Hawaiian Islands : Maui.

Ecology. Unknown.

Types. The holotype male ( UHIM2016.48277 ) is deposited in the University of Hawaiʻi Insect Museum .

Material Examined. Holotype. 1 ♂ ( UHIM2016.48277 ). Palikū, Haleakalā Crater, Maui, 6,500 ft. [ 1,981 m], Jun 1953, D. E. Hardy col.

Etymology. This species is named after Maui, the clever demigod known as a legendary trickster, responsible for slowing down the sun and fishing up islands.

Figures

FIGURE 26. Habitus of Scaptomyza mauii Rampasso and O’Grady, sp. nov. (specimen UHIM2016.48277), in dorsal (A) and left lateral (B) views. Scale bar = 1 mm. Male terminalia of the respective individual in posterior (C), oblique posterior (D) and left lateral (E) views. Scale bar = 0.1 mm.