Simulium (Chirostilbia) dekeyseri Shelley & Py-Daniel

Hernández, Luis Miguel, Shelley, Anthony John, Dias, Antonio Paulino Andrade De Luna & Maia-Herzog, Marilza, 2008, Carcinoma Folicular de Tiroides concomitante con Hiperparatiroidismo Primario. Caso Clínico, Zootaxa 1834, pp. 1-100 : 15-16

publication ID	https://doi.org/ 10.34631/sporl.419
persistent identifier	https://treatment.plazi.org/id/A2708A02-FFA0-FFEB-FF78-53E9FB6CF8BB
treatment provided by	Felipe
scientific name	Simulium (Chirostilbia) dekeyseri Shelley & Py-Daniel
status

Treatment

Simulium (Chirostilbia) dekeyseri Shelley & Py-Daniel View in CoL

( Figs. 2 View PLATE 1 , 17 View PLATE 2 , 33, 38 View PLATE 3 , 76–78 View PLATE 6 , 107 View PLATE 8 , 122 View PLATE 10 , 138 View PLATE 11 , 154, 155 View PLATE 12 , 181 View PLATE 14 , 195 View PLATE 15 , 207 View PLATE 16 , 220 View PLATE 17 , 233 View PLATE 19 , 246 View PLATE 21 )

Simulium (Chirostilbia) dekeyseri Shelley & Py-Daniel, 1981: 23 View in CoL . HOLOTYPE ♀ and associated pupa pelt, BRAZIL: Brasília (Federal District); 24.vii.1975 (Shelley, A.J. & Py-Daniel, V.) (IOC). [Synonymy with S. laneportoi View in CoL Vargas (new name for S. pillosum Lane and Porto, 1940 by Vargas, 1941) in Py-Daniel, 1987: 331; removed from synonymy with S. laneportoi View in CoL and revalidated by Hernández et al. 2007: 8 View Cited Treatment .] [Examined.]

Female. General body colour black. Body length (specimens pinned) 1.6–2.3 mm (mean=2.0 mm, s.d.=0.22, n=9), wing length 1.8–2.3 mm (mean=2.0 mm, s.d.=0.17, n=9), wing width 0.8–1.1 mm (mean=1.0 mm, s.d.=0.09, n=9).

Head— dichoptic with dark red eyes and nudiocular area developed ( Fig. 2 View PLATE 1 ). Frons, clypeus and occiput pruinose with scattered adpressed yellow hairs, denser on eye margin and occiput. Some yellow hairs on posterior margin of eye. Mouthparts light to dark brown. Antenna with scape and pedicel yellowish brown, remainder black. Cibarium with well sclerotised cornuae and central trough unarmed and unsclerotised ( Fig. 17 View PLATE 2 ).

Thorax— scutum black with areas of pruinosity and yellowish hairs, denser on margins. Scutal pattern varying with illumination. With anterior illumination, thorax silver pruinose with thin median vitta linking anterior margin to black posterior margin and 1+1 submedian posteriorly diverging thicker vittae running length of scutum ( Figs. 33, 35, 37 View PLATE 3 ). With posterior illumination the silver pruinose and black areas are reversed ( Figs. 34, 36, 38 View PLATE 3 ). Scutellum dark brown with long adpressed yellow hairs, denser anteriorly and pointing towards midline. Postnotum black, glabrous and pruinose. Pleura and sterna brown. Costa of wing with sparse distribution of spines and setae. Subcosta with line of setae on basal three fourths. Radius with single row of hair-like and spiniform macrotrichia, basal section of Radius with hair-like macrotrichia mainly in a single row, but in places in a double row. Basal tuft of long, dark setae. Leg coloration and proportions as in Figs. 76–78 View PLATE 6 . Foreleg with coxa, trochanter, femur and tibia yellowish brown; distal tip of tibia brown and tarsus segment dark brown to black. Mid leg coxa dark brown femur, and first fourth of basitarsus yellowish, remainder dark brown; basal half of tarsal segment II yellowish brown, distal half black; other tarsal segments black. Hind leg coxa light brown, pruinose; trochanter and femur yellowish; basal half of tibia cream and distal half black; basal two thirds of basitarsus yellowish distal third black; remaining tarsal segments black. Claw strongly curved except on fore leg, with small subbasal tooth. Halteres lemon yellow with light brown bases.

Abdomen— tergite I brown, brass coloured hairs on basal fringe; tergite II with anterior half brown and posterior half black, faintly pruinose; tergite III black, faintly pruinose; tergites IV–IX shiny black with scattered yellow hairs. Tergal plates developed. Sternites dirty white; genitalia dark brown to black. Eighth sternite sclerotised with 1+1 groups of about 12 setae; gonapophyses broadly subtriangular, lobed distally, apparently glabrous and sclerotised on inner margins and apical half of posterior margin ( Fig. 107 View PLATE 8 ). Cercus hemispherical, covered with distinct, long, brown setae; paraproct subrectangular with ventral subtriangular extension about one and a half times longer than cercus, highly setose ( Fig. 122 View PLATE 10 ). Genital fork with slender sclerotised stem, anterior processes of posterior arms broadly triangular and sclerotised, posterior processes undeveloped ( Fig. 138 View PLATE 11 ). Spermatheca oval with smooth texture and spicules on inner surface of variable size, grouped in threes in basal half and scattered in distal half; area of insertion of spermathecal duct membranous.

Male. General body colour black. Body length (specimens pinned) 1.9–2.7 mm (mean= 2.2 mm, s.d.=0.27, n=8), wing length 0.8–1.9 mm (mean= 1.8 mm, s.d.=0.45, n=10), wing width 0.8–1.1 mm (mean= 0.9 mm; s.d.=0.09, n=10).

Head— holoptic with dark red eyes. Remainder of head coloration as in female, except antennae, which are darker.

Thorax— scutum black with golden and silvery, recumbent setae. Scutal pattern varies with light inci- dence: with anterior light source thorax pruinose on anterior third, except 1+1 lateral, velvet black areas on anterior margin ( Fig. 154 View PLATE 12 ); humeri and lateral margins black. With light source posterior to specimen thorax black ( Fig. 155 View PLATE 12 ) [sometimes faintly pruinose areas can be seen in central area on anterior third]; humeri and lateral margin weakly pruinose [best seen when specimens are tilted laterally]. Scutellum brown with golden, recumbent hairs and long, erect, dark brown setae. Postnotum dark brown to black with silvery grey pruinosity. Wing setation as in female. Leg coloration as in female.

Abdomen— tergites black, basal fringe with long, brown hairs. Silver pruinose ornamentation as follows: anterolateral margin of tergite II, and lateral margin of tergites V–VIII [best seen when specimens viewed laterally]. Tergal plates developed; genitalia black. Gonocoxite subrectangular, slightly wider than long; gonostyle trapezoidal, shorter than gonocoxite and with small apical spine; gonocoxite and gonostyle covered with long setae ( Fig. 181 View PLATE 14 ). Ventral plate sclerotised, narrow and convex dorsally, with main body having distal end broadly pointed; main body of ventral plate covered by numerous spiniform setae concentrated along mid line ( Fig. 195 View PLATE 15 ). Median sclerite pear-shaped with apical incision ( Fig. 207 View PLATE 16 ). Paramere with well developed and sclerotised basal process and several long spines apically ( Fig. 220 View PLATE 17 ).

Pupa. Cocoon length dorsally 2.6–3.6 mm (mean= 3.2 mm, s.d=0.37, n=12), ventrally 2.6–4.4 mm (mean= 3.5 mm, s.d.=0.47, n=12); pupa length 2.9–4.1 mm (mean= 3.5 mm; s.d.=0.37, n=12); gill length 1.6– 3.1 mm (mean=2.5, s.d.=0.53, n=12).

Cocoon— slipper-shaped as in Fig. 233 View PLATE 19 , mid to dark brown composed of thick, coalesced fibres, with reinforced rim to anterior aperture, margin of aperture not elevated.

Gill— dark brown with eight forwardly-directed arranged in vertical plane. Gill with main trunk short, giving rise to three primary branches: ventral with two arising basally, median with three arising basally at different height from base, dorsal with one filament arising basally and two others at a short distance distal to this ( Fig. 246 View PLATE 21 ). slender, tapering distally, with rounded ends, edges weakly crenate, covered with small tubercles some of which are more prominent and run spirally around the; all approximately same length.

Head— frontoclypeus with 2+2 frontal and 1+1 long, bifid facial trichomes; frontoclypeus with distinct group of platelets mesally, 1+1 dorso-laterally and 4–5 platelets in groups of 2 and 3 laterally and centrally in frontal region; tubercles rounded, densely distributed over entire surface.

Thorax— With 3+3 dorsal, 3–7 branched trichomes, 2+2 anterolateral trichomes, the anterior simple to trifid and posterior simple; one anteroventral simple or bifid and one mid–lateral, simple trichomes; fine spine on anteroventral margin; tubercles rounded and densely distributed over entire surface.

Abdomen— tergite I with 3+3 simple median and 1+1 long submedian trichomes; tergite II with 3+3 submedian spiniform setae in longitudinal row, 3+3 small simple setae lateral to outermost spiniform setae (one long); tergites III and IV with 4+4 submedian spiniform setae in longitudinal row, sometimes 1+1 simple setae on lateral margin; tergites V and VI with 2+2 sublateral simple trichomes; tergite VII with developed spine combs on central region of anterior margin and 1+1 submedian simple trichomes; tergite VIII with well developed blunt spines on anterior margin and 1+1 submedian simple trichomes near posterior margin; tergite IX with 1+1 blunt sclerotised tubercles. Spine combs on anterolateral margins of tergites II, III and VIII–IX. Abdominal sternites III and IV with spine combs on anterior margin; sternite V with 2+2 close bifid median hooks and groups of spine combs on anterior margin; sternites VI–VII with 1+1 median bifid hooks, 1+1 sublateral, distinct simple spines and groups of spine combs on anterior margin; sternites VIII and IX without setae or processes.

Larva. The description of the larval stage may be found in Shelley & Py-Daniel (1981).