Scaptomyza kanaloai 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 : 11-13

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

( Fig. 7 )

Diagnosis. Epandrium broad, with a small and pointed posterior lobe. Surstylus is straight and broad in posterior view, large and broad in lateral view. A group of ten surstylar teeth is found in the dorsal portion of the surstylus, not organized in a row.

Description. Male (n = 1). Head. Pedicel brown and first flagellomere dark brown. Arista with 2 dorsal, 0 ventral, and about 5 short inner branches, plus terminal fork. Terminal fork deep, about 50% as long as basal segment of arista. Eyes dark red and face brown. Frontal vitta, in the region around the ptilinal suture is brown, becoming dark brown in ground color and densely gray pollinose in the interorbital area. Frontal triangle, fronto-orbital plates, and ocellar triangle dark brown in ground color and densely gray pollinose. Anterior reclinate inserted posterolaterally to proclinate orbital. Anterior reclinate 63% length of proclinate. Proclinate 50% length of posterior reclinate. Gena pale yellow. Subvibrissal setae 75% length of vibrissae. Mouthparts light brown, and palps yellow with 2 black apical setae. Thorax. Scutum and scutellum dark brown in ground color and densely gray pollinose. 2 pairs of dorsocentral setae. Acrostichal setae in 6 irregular rows when counted between anterior dorsocentral setae, becoming sparse posteriorly. Basal scutellar setae divergent and apical scutellar setae convergent. Pleura brown and densely gray pollinose. 2 postpronotal and 3 katepisternal setae present. Anterior katepisternal setae approximately 53% length of posterior katepisternal setae. Legs. Predominantly yellow. The front basitarsus is about 25% as long as the tibia. Wings. Hyaline without distinct pattern. Abdomen. Previously dissected. Male terminalia ( Figs. 7 C- E). Epandrium broad, with a small and pointed posterior lobe. Epandrium bears an anterodorsal phragma and no ventral lobe. Surstylus is straight and broad in posterior view, large and broad in lateral view. A group of ten surstylar teeth is found in the dorsal portion of the surstylus, not organized in a row. A group of large bristles is found in the middle portion of the surstylus. Cerci are undifferentiated. In lateral view, the cercal plates are almost as long as high. Measurements. TL = 0.87 mm; WL = 2.08 mm; TL/WL = 0.37; HW/TL = 0.60; CI = 4.81; 4V = 1.77; 5X = 2.21; 4C = 0.51; M = 0.61.

Distribution. Hawaiian Islands : Maui. Ecology. Dr. W. B. Heed recorded this species using unidentified leaf mold as their breeding site. Types. The holotype male (UHIM2016.48333) is deposited in the University of Hawaiʻi Insect Museum. Material Examined. Holotype. 1 ♂ (UHIM2016.48333). Palikū, Haleakalā Crater, Maui, 6,500 ft. [ 1,981 m], 23 Jul 1963, reared ex leaf mold, W. B. Heed col. Etymology. This species is named after Kanaloa, the god of the ocean, winds, and the underworld, often seen as Kāne’s counterpart.

Figures

FIGURE 7. Habitus of Scaptomyza kanaloai Rampasso and O’Grady, sp. nov. (specimen UHIM2016.48333), in dorsal (A) and right 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.