Allodia horologia Magnussen

Magnussen, Trude, Soli, Geir E. E. & Kjaerandsen, Jostein, 2019, Allodia Winnertz from the Himalayas, with nine species new to science (Diptera, Mycetophilidae), ZooKeys 820, pp. 119-138 : 127

Allodia horologia Magnussen sp. n. Fig. 2E

Diagnosis.

The dorsal lobe of the gonostylus has a distinct hourglass-shape. The outline of the median lobe, with a pointed posterodorsal tip and a rounded posteroventral corner, makes it different from that in other species described here.

Type locality.

NEPAL: Province no. 1 (Kosi Zone), Sankhuwasabha District, Topke Gola to Thurukba, 2600-3700 m a.s.l.

Type specimen.

Holotype: male. 3 printed labels: (E. NEPAL) Topke Gola (3700 m) 27°38'N, 087°35'E --- Thurukba (3700 m) 27°38'N, 087°35'E / July 9, 1972 Pemba Norbu leg. Kyushu Univ. Col. / TSZD-JKJ-104943 (KUEC, pinned with genitalia in separate microvial).

Description.

Body length ca. 3 mm; wing length 2.7 mm. Colouration. Head and clypeus brown. Mouthparts brown, palpomeres yellow. Antennae brown, with scape and pedicel, and basal half of first flagellomere yellow. Scutum brown, with yellow lateral area, from humerus towards wing base. Antepronotum yellow, other lateral sclerites brown. Wings clear, without markings. Halteres yellow. Legs yellow. Abdomen dark brown. Terminalia dark yellow. Head. Three ocelli present, median ocellus smaller than laterals, lateral ocelli touching eye margin. Head covered with fine trichia. Antennae approx. twice as long as thorax. Scape and pedicel with multiple dorsal setae. Flagellomeres cylindrical, densely clothed with fine trichia. First flagellomere twice as long as pedicel. Thorax. Antepronotum with four setae. Scutum covered with uniform, small, pale setae; strong prealar and postalar setae. Discal bristles absent. Scutellum with two strong bristles. Laterotergite with few short setae. Other lateral sclerites bare. Legs. All tibiae with short setae arranged in rows. Mid tibia with six long anterodorsal and 15 short posterodorsal bristles. Hind tibia with six long anterodorsal and six long posterodorsal bristles. Wings. Sc short, ending in R. Length of rm equal to stem of posterior fork. R1 with setae, R5 without setae. Male terminalia. Tergite IX medially divided, each part rounded, covered with minute trichia, two strong apical bristles. Hypandrial lobe heavily sclerotised and elongated. Gonostylus with dorsal lobe heavily sclerotised, flattened and hourglass-shaped with multiple outer setae near basis of lobe. Median lobe of gonostylus distinctly pointed posterodorsally, and with rounded posteroventral part; dorsal edge slightly sigmoid; several long setae on posterior margin, two short setae on internal surface of lobe. Ventral lobe club-shaped, with four long setae sub-apically. Basal part of gonostylus with projecting protuberance with several long setae apically. Internal part of gonostylus with long, caudally projecting process.

Etymology.

From Latin horologium, timepiece, i.e. a device to show progress of time; here referring to the outline of the dorsal lobe of the gonostylus having the shape of a hourglass.

Remarks.

Allodia horologia is morphologically similar to A. spathulata , but can be separated based on the shape of the median lobe, see further remarks under A. spathulata .