Dexia vicina ( Mesnil, 1953 )

Zhang, Chun-Tian, Shima, Hiroshi & Chen, Xiao-Lin, 2010, A review of the genus Dexia Meigen in the Palearctic and Oriental Regions (Diptera: Tachinidae) 2705, Zootaxa 2705, pp. 1-81 : 75-76

Dexia vicina ( Mesnil, 1953)

Calotheresia vicina Mesnil, 1953: 173 .

Dexia vicina: Crosskey 1976: 179 . — Crosskey 1977: 604 (catalog).

Diagnosis. Thoracic dorsum with 2 broad and 2 narrow longitudinal vittae; 1 postsutural acrostichal seta; proepisternum hairy; 3 supra-alar setae; lower calypter with short fringe; legs dark brown.

Description. Body length. Female: 11−13 mm.

Female. Head with dense yellowish pruinosity; antenna reddish yellow; palpus reddish yellow; frons about 0.3 times as wide as head width; gena about 0.52 times as wide as eye height; outer vertical seta fine, as long as postvertical seta; 1st flagellomere about 5 times as long as pedicel. Thorax covered with yellowish white pruinosity, scutum with 2 rather broad outer and 2 narrow inner vittae, outer vitta about twice as wide as inner one; scutellum black on basal 1/3, reddish apically. Proepisternum haired; 1 postsutural acrostichal seta; 2 presutural and 3 postsutural dorsocentral setae; 2−3 postsutural intra-alar setae; 3 supra-alar setae; 2 katepisternal setae. Wing pale yellowish on costal cell and basal area to level of dm-cu crossvein, brown between costa and vein R 4+5 and along veins M and CuA 1, the tinge diffusing marginally; relative lengths of 2nd, 3rd and 4th costal sectors approximately 3.5:8.5:3.5; vein M from dm-cu crossvein to its bend about 2.3 times distance between the bend and wing margin. Lower calypter with short fringe on outer margin. Abdomen broadly black in ground color, narrowly reddish on anterolateral portion of tergites 3 and 4; scutum pale yellowish white pruinosity on narrow anterior margin of tergite 3, anterior 3/5 of tergite 4 and 1/2 of tergite 5.

Type material examined. Holotype female of Calotheresia vicina Mesnil, N.E. MYANMAR, Kachin, Kambaiti , 2000 m, 14.v.1934, Malaise ( ZMU).

Additional material examined. THAILAND. 1 female, Trang, Prov., Khacphappha Khaochang , 200 m, 1−3.i.1963, G.A. Samuelson ( BPBM) .

Distribution. Myanmar, Thailand *.

Remarks. This species is very similar to D. fulvifera , but differs from it in having hairy proepisternum. The male of this species is unknown.