Spilogona fulvibasis Huckett, 1965

Sorokina, Vera S., 2025, New taxonomic notes on the genus Spilogona Schnabl, 1911 (Diptera: Muscidae) in Arctic Russia, with the description of three new species, Zootaxa 5584 (1), pp. 1-25 : 15

Spilogona fulvibasis Huckett, 1965

Fig. 5 A

Spilogona fulvibasis Huckett, 1965: 220 . Type locality: “ Mount McKinley National Park , Alaska, 1932, F.W. Morand ” [ USA, Alaska] [seen].

Spilogona fulvibasis Huckett, 1965 ; Sorokina et al., 2018: 327 (Magadan region).

Notes. Huckett (1965:220) described Spilogona fulvibasis from Alaska and indicated in his monograph that the typedepository was the USNM, no. 67311. However, the holotype and the allotype of a “ Spilogona fulvisquama Huckett ” are located in the Main Collection precisely where Spilogona fulvibasis should be located (Garry Ouellette, pers. comm.). Dr Garry Ouellette (USNM) kindly sent me the holotype and allotype of Spilogona fulvisquama for study. These specimens have the same locality and collection date as the original description of Spilogona fulvibasis ( Fig. 5A ). I examined the types and compared them with the original description of Spilogona fulvibasis , and found that the specimens named as Spilogona fulvisquama completely fit the original description of Spilogona fulvibasis . We can assume that Huckett mislabelled these type-specimens, or changed his mind about the name when completing his manuscript.

This species is distinctive with an intensive yellow base of the wings, including veins, and densely yellowish calypters ( Fig. 5A ); also it is large in size (8–9 mm) with haired notopleuron, anepisternum without interspatial setae, scutellum without preapical setulae on upper border of declivities, mid tibia without v setae, hind femur without pv setae, and proboscis short with dusted prementum.

In the holotype the left fore leg is missing, whilst the allotype is without mid and hind legs.

Distribution. PALAEARCTIC: Russia (Far East). NEARCTIC: Alaska.

Figures

FIGURE 5. Spilogona ssp. A. Spilogona fulvibasis, lateral view, holotype (photo: Garry Ouellette). B–G. Spilogona lapponica (photos of paratypes of Spilogona compacta). B. Sternite 5. C. Terminalia, lateral view. D. Male, lateral view. E. Female, lateral view. F. Male abdomen apex, ventral view. G. Cercal plate, dorsal view. H–J. Spilogona padlei. H. Terminalia, lateral view. I. Sternite 5. J. Female abdomen apex, lateral view. K–M. Spilogona scutulata. K. Male, lateral view. L. Female, lateral view. M. Sternite 5.