Scaptomyza obscuricornis ( Grimshaw, 1901 )

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 obscuricornis ( Grimshaw, 1901)

( Fig. 27 )

Drosophila obscuricornis Grimshaw, 1901: 71 .

Scaptomyza obscuricornis Hardy, 1965: 718 .

Diagnosis. Male terminalia dark and usually flat in lateral view. In posterior view, the surstylus has two conspicuous and hooklike lobes. The dorsal lobe is broad and short, whereas the ventral lobe is long and slender. The inner margin of the surstylus has a distinct S-shape. No surstylar tooth is observed.

Distribution. Hawaiian Islands : Hawaiʻi, Maui, Molokaʻi, Oʻahu.

Ecology. Unknown.

Types. The type material (not examined) is deposited in the Natural History Museum (London).

Material Examined. 1♂ terminalia in a microvial attached to the pin of 1 ♀ ( UHIM2015.01634 ), Upper ʻŌlaʻa Forest , Hawaiʻi, 4,000 ft. [ 1,219 m], Jul 1956, D. E. Hardy col.

Notes. The specimen UHIM 2015.01634 is an undissected female, which contained a dissected male terminalia in a microvial, attached to the pin. While the male terminalia matches the description and illustrations of S. obscuricornis in Hardy (1965), it is impossible to determine if the female is conspecific, therefore, the female specimen was excluded from this manuscript.

Figures

FIGURE 27. Male terminalia of Scaptomyza obscuricornis (Grimshaw, 1901), attached to the pin of an undissected female individual (specimen UHIM2015.01634) in posterior (A), oblique posterior (B) and left lateral (C) views. Scale bar = 0.1 mm.