Cratyna (Cratyna) musicola ( Steffan, 1969 )

Broadley, Adam, Kauschke, Ellen & Mohrig, Werner, 2019, Revision of the black fungus gnat species (Diptera: Sciaridae) described by W. A. Steffan from Micronesia, Zootaxa 4683 (2), pp. 215-241 : 225

Cratyna (Cratyna) musicola ( Steffan, 1969)

( Fig. 8 A–B)

Pseudozygoneura musicola Steffan, 1969 [ Steffan (1969): 676 –679, fig. 3 a–f].

Literature: Hippa et al. (1998): (as Pseudozygoneura ); Mohrig & Menzel (2014): 138.

Material studied: Holotype, male, 15.xii.1947, Caroline Islands, Palau Islands, Babelthuap I., Ulimang, dead banana leaves, leg. H.S. Dybas ( USNM 70555 ).

Conservation status: Embedded in Hoyer’s medium. Head, body, hypopygium and wings are separate; wings under a separate cover slip on the same slide, totally destroyed. Thorax and hypopygium are depressed, deformed and extremely bleached.

Comments. The species is characterized by cecidomyiid-like flagellomeres with extremely long bristles and long necks. With the exception of the genus Zygoneura , these characters were unknown for sciarids at that time. A lot of species belonging to the genus Cratyna ( Hippa et al. (1998) [as Pseudozygoneura ], Mohrig 2004, Mohrig et al. 2017a) and other genera with long necks and cecidomyiid-like flagellomeres (e.g. see Mohrig et al. 2018) are now known. Mohrig & Menzel (2014) synonymised Pseudozygoneura Steffan with Cratyna and all species were combined in the latter genus. Cratyna musicola (Steffan) is characterized by the three short awl-like spines at the apex of the gonostylus.

Distribution. Caroline Islands: Palau Islands (Babelthuap I.), Chuuk ( Truk), Pohnpei Island.

Figures

FIGURE 8 A–B. Cratyna musicola (Steffan, 1969). Holotype. A. Gonostylus; B. Head with palpus and basal flagellomeres (specimen deformed and strongly bleached).