Minilimosina (Svarciella) cornigera Roháček & Marshall , 1988

Su, Lixin, Liu, Guangchun & Xu, Jie, 2015, A review of Minilimosina Roháček (Diptera: Sphaeroceridae) from China, Zootaxa 4007 (1), pp. 1-28 : 12-13

publication ID

https://doi.org/ 10.11646/zootaxa.4007.1.1

publication LSID

lsid:zoobank.org:pub:8670DA5B-AD3C-4CDF-9E3C-D952B0DEB34D

DOI

https://doi.org/10.5281/zenodo.6093791

persistent identifier

https://treatment.plazi.org/id/03AF87C0-FFCF-5545-FF16-3E96946677C5

treatment provided by

Plazi

scientific name

Minilimosina (Svarciella) cornigera Roháček & Marshall , 1988
status

 

Minilimosina (Svarciella) cornigera Roháček & Marshall, 1988 View in CoL

( Figs. 39–44 View FIGURES 39 – 41 View FIGURES 42 – 44 )

Minilimosina (Svarciella) cornigera Roháček & Marshall, 1988: 255 View in CoL [male, phylogenetic notes, illustr.]. Type locality: Malaysia, Kuala Lumpur, Ulu Gombak. HT male (CNCI).

Diagnosis. Head brownish black to black; anterior margin of frons up to ocellar triangule, lunule and face brownish orange, antennae orange. Legs yellow except for coxa, mid and hind femora dark brown. Posterior dorsocentral seta as long as scutellum length. Mid tibia: ventroapical seta shorter than or as long as width of mid tibia, proximal anterodorsal seta longer than distal anterodorsal. Hind first tarsomere 3/5 times as long as the second tarsal segment. Haltere pale yellow. Male postabdomen: sternite 5 ( Fig. 40 View FIGURES 39 – 41 ) posteromedially with a pair of robust hornlike but flattened spines and a row of long blunt comb-like spines. Gonostylus ( Fig. 39 View FIGURES 39 – 41 ) bilobed; outer lobe with a ventral spine; anterior inner lobe with a ventral spine, posterior inner lobe with a row of thick posteroapical setae; cerci obviously separated.

Female (new): Body length 1.8 mm, wing length 1.5 mm. Ventroapical seta of mid tibia longer than that of male. Abdomen: syntergite 1+2 large, heavily sclerotized; tergites 3–4 strongly reduced, pale but sclerotized; width of tergite 5 subequal to its length, heavily sclerotized ( Fig. 42 View FIGURES 42 – 44 ). Synsternite 1+2 and sternites 3–4 rectangular, desclerotized; sternite 5 ( Fig. 43 View FIGURES 42 – 44 ) heavily sclerotized, rectangular.

Female postabdomen: Tergites 6–7 strongly reduced, pale but sclerotized. Tergite 8 ( Fig. 42 View FIGURES 42 – 44 ) divided into 2 dark sclerites. Tergite 10 ( Fig. 42 View FIGURES 42 – 44 ) semicircular, with anterior third pale and bare, posterior two thirds dark and setulose, posterior half with 2 long setae. Sternites 6–7 heavily sclerotized, sternite 6 triangular, sternite 7 ( Fig. 43 View FIGURES 42 – 44 ) short and transverse. Sternite 8 ( Fig. 43 View FIGURES 42 – 44 ) pale and setulose, with two pairs of long setae. Sternite 10 ( Fig. 43 View FIGURES 42 – 44 ) setulose with anterolateral corners pale and bare, posterior margin dark pigmented and having a posteromedial invagination. Cercus with a distinctly thick and long dorsopreapical seta. Spermathecae ( Fig. 44 View FIGURES 42 – 44 ) subspherical, with no apparent invagination but with granules on surface; sclerotized part of ducts relatively long, half as long as spermathecal body.

Materal examined. (LKLSU, in alcohol): 2 males: China, Guangxi, County Shangsi, Mt. Shiwan, sweep, 16.Aug.2011, Jianfeng Wang; 1 female: China, Guangxi, County Shangsi, Mt. Shiwan, sweep, 17.Aug.2011, Jianfeng Wang.

Comments. The species is recorded in China for the first time (previously only known from Malaysia). It can be easily identified by the colouration of legs and distinctive formation of the male sternite 5, gonostylus and distiphallus. The peculiarly modified abdomen of female M. cornigera is extraordinary in the genus Minilimosina (cf. tergite 5 large, square; tergite 6 small, divided into 2 parts; tergite 7 very short, wide; tergite 8 divided into 2 parts; sternite 10 with posteromedial invagination). In the M. flagrella group proposed by Roháček & Marshall (1988), female of M. cornigera is most similar to M. flagrella Roháček & Marshall, 1988 in sharing the following characters which are possibly synapomorphies: tergites 3–4 strongly reduced and declerotized, sternite 10 with posteromedial invagination, spermathecae ball-shaped and with grains. Note: female of M. hastata Roháček & Marshall, 1988 , also belonging to the M. flagrella group, remains unknown.

Distribution. Oriental: China (Guangxi), Malaysia.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Sphaeroceridae

Genus

Minilimosina

Loc

Minilimosina (Svarciella) cornigera Roháček & Marshall , 1988

Su, Lixin, Liu, Guangchun & Xu, Jie 2015
2015
Loc

Minilimosina (Svarciella) cornigera Roháček & Marshall , 1988 : 255

Rohacek 1988: 255
1988
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