Bradysia exsequialis Skuse 1890, comb. n.
| Main Authors: | Broadley, Adam, Kauschke, Ellen, Mohrig, Werner |
|---|---|
| Format: | info publication-taxonomictreatment Journal |
| Terbitan: |
, 2016
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6089919 |
Daftar Isi:
- Bradysia exsequialis (Skuse, 1890) comb. n. (Figs 12 A‒C, 3 B) Sciara exsequialis (Skuse, 1890) [Skuse (1890): 409 ‒410]. Type locality. Australia, Victoria, Benalla. Lectotype (here designated): Male. Slide bears original label data (Fig. 3 B) verbatim ‘ S. exsequialis / Ƌ ♀ (ink) TYPE./ F. A. A. Skuse’ (print), ‘Benalla/ Nov. Helms.’ (ink). Mounted in Canada balsam Dec. 2015. (ANIC; Slide No. 018-1). Paralectotypes. 2 males, 1 female (018-4: in copula with paralectotype 018-3), same data (1 male, 1 female in ANIC, 1 male in PWMP; Slide No. 018-3); 4 specimens missing. Remarks. Original description states “ Hab.—Benalla, Victoria (Helms). Eight specimens in November.” Preservation. Flagellomeres missing (in paralectotypes the flagellomeres are present), all other details in good condition. Additional description. Male. Head. Brown. Eye bridge 3 facets wide. Antennae brown, necks rather short, brownish, weakly bicoloured; 4th flagellomere with l/w-index of 4.0, with dense hairs, that are somewhat longer than the width of the basal node; palpus short, 3-segmented, basal segment with sensory pit and 2 bristles. Thorax. Brown, scutum with three somewhat darker stripes and long prescutellar as well as a few long lateral bristles; scutellum with 4 longer marginal bristles; postpronotum bare. Wing brownish; R1 = 3/4 R; R5 with dorsal macrotrichia only; C = 2/3 w; y = x, without macrotrichia; M-fork as long as M-stem; posterior veins without macrotrichia. Haltere short, yellow. Legs brown; fore tibia with a rather short comb of 4 pale bristles; spurs of middle and hind tibia equal in size, somewhat longer than the width of apex of tibia; claws without teeth. Abdomen. Brown, with sparse and rather short hairs. Hypopygium brown, with broad v-shaped ventral base, without lobe or patch of bristles; gonocoxite with short sparse fine hairs at the inner ventral margin; gonostylus bulbous, without apical tooth, with 2 spines dorsally and five subequal apical spines; tegmen apically straight, with large area of rather strong teeth and with short ventral parameral apodeme; aedeagus rather short, robust. Body length: 2.6 mm. Female. Flagellomeres shorter than in males, all other characters are identical in both sexes. It is characterized by a pale haltere (in contrast to the dark thorax) and a long M-fork. Comments. This species is characterized by a dark brown thorax with yellow halteres and brown legs, long densely hairy flagellomeres, by a bulbous gonostylus with 2 apical spines and 5 spines below, and an apically truncate tegmen with a large area of rather strong teeth and a short ventral parameral apodeme. It belongs to the B. hilaris group. Distribution. Australia (Victoria).
- Published as part of Broadley, Adam, Kauschke, Ellen & Mohrig, Werner, 2016, Revision of the types of male Sciaridae (Diptera) described from Australia by F. A. A. Skuse, pp. 401-450 in Zootaxa 4193 (3) on page 421, DOI: 10.11646/zootaxa.4193.3.1, http://zenodo.org/record/167160