Simulium (Chirostilbia) papaveroi Coscarón

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 : 32-33

publication ID	https://doi.org/ 10.34631/sporl.419
persistent identifier	https://treatment.plazi.org/id/A2708A02-FFB1-FFC4-FF78-52DBFF57F9DB
treatment provided by	Felipe
scientific name	Simulium (Chirostilbia) papaveroi Coscarón
status

Treatment

Simulium (Chirostilbia) papaveroi Coscarón View in CoL

( Figs. 8 View PLATE 1 , 23 View PLATE 2 , 49, 50 View PLATE 4 , 91–93 View PLATE 7 , 113 View PLATE 9 , 129 View PLATE 10 , 144 View PLATE 11 , 187 View PLATE 14 , 213 View PLATE 16 , 226 View PLATE 17 , 239 View PLATE 19 , 253 View PLATE 22 )

This is a poorly known species from Minas Gerais State, Brazil and is morphologically similar to S. dekeyseri and S. serranus . We are here basing our description of S. papaveroi on examination of type material and the original description of this species.

Simulium papaveroi Coscarón, 1982: 68 View in CoL . HOLOTYPE ♀ (reared), BRAZIL: Minas Gerais State, Jaboticatuba, Serra de Cipó ; 25.iv/ 3.v.1973, (UNICAMP) [This appears to be an error because it is the same as the acronym for the Universidade de Campinas and unlikely to be a collector’s name] (MZUSP).

Female. General body colour black. Wing length 1.8–2.0 mm [other measurements not given in original description]

Head— dichoptic with dark red eyes and nudiocular area slightly developed ( Fig. 8 View PLATE 1 ). Frons and clypeus grey pruinose covered by yellowish hairs. Mouthparts pale brown. Antennal segments pale brown. Cibarium without teeth and with well developed, sclerotised cornuae, ( Fig. 23 View PLATE 2 ).

Thorax— scutum dark brown, covered with recumbent, silver to golden hairs depending on light direction. Scutal pattern similar to that of S. dekeyseri , varying with light illumination. With anterior illumination, thorax greyish black with 1+1 median and 1+1 submedian black vittae diverging posteriorly and apparently running length of scutum; humeri weakly pruinose, lateral and posterior margins weakly pruinose ( Fig. 49 View PLATE 4 ). With a posterior light source the pattern reverses ( Fig. 50 View PLATE 4 ). Scutellum pale brown with recumbent golden setae interspersed with long black bristles. Postnotum black with silver pruinosity. Pleura dark brown to black with silver pruinosity. Costa of wing with hairs interspersed with spines. Subcosta and basal section of Radius without setae. Leg coloration and proportions as in Figs. 91–93 View PLATE 7 [ Coscarón (1982) did not provide a coloration pattern for S. papaveroi . He only referred to the figures of the coloration pattern in this publication]. Claws curved, without basal tooth. Halteres cream with brown bases.

Abdomen— coloration similar to S. subpallidum ; tergites I–II yellowish, III–VI dark brown, VII–IX pale yellowish. Tergal plates developed; sternal plates undeveloped. Sternites greyish black; genitalia black. Eighth sternite sclerotised with irregularly distributed setae on posterior margin; gonapophyses subtriangular, membranous except sclerotised on internal margins [No indication of setation given by Coscarón, 1982] ( Fig. 113 View PLATE 9 ). Cercus hemispherical, covered with long brown setae; paraproct subrectangular with triangular ventral extension over 1.5 times as long as cercus, sclerotised; paraprocts covered with prominent brown setae centrally and highly setose apically ( Fig. 129 View PLATE 10 ). Genital fork stout, weakly sclerotised with apex of stem weakly expanded; anterior processes developed, posterior processes undeveloped ( Fig. 144 View PLATE 11 ). Spermatheca globular, without external sculpturing and with internal spicules irregularly arranged; area of insertion of spermathecal duct membranous.

Male. [We were unable to obtain male specimens of this species, therefore the description here provided is a translation of the original description in Spanish of Coscarón, 1982]. General body colour black. Body length (specimens pinned) wing length 1.7–1.8 mm [No other measurements were given in the original description.]

Head— holoptic with dark red eyes. Remainder of head coloration as in female.

Thorax— scutum dark brown, covered with recumbent golden hairs. Scutal pattern varies slightly with light incidence: with anterior light source thorax black with 1+1 indistinct, submedian silver pruinose bands; grey pruinose area on anterior region of thorax. With light source posterior to specimen thorax black. Humeri, lateral and posterior margins black. Scutellum black with recumbent golden hairs interspersed with long erect black hairs on posterior margin.

Abdomen— coloration of abdominal segments not described. Genitalia black; tergal plates developed, sternal plates undeveloped. Gonocoxite subrectangular; gonostyle elongated, subtriangular and nearly same length as gonocoxite, with ridge in median region; gonocoxite and gonostyle covered with long setae ( Fig. 187 View PLATE 14 ). Ventral plate sclerotised, subtriangular with main body well developed and weakly produced in central region; basal arms short and sclerotized; main body of ventral plate covered by setae [Coscarón & Coscarón- Arias (2007) stated that the ventral plate of S. papaveroi is similar to that of S. subpallidum ]. Median sclerite long, Y-shaped with apical incision ( Fig. 213 View PLATE 16 ). Paramere with developed and sclerotised basal processes and numerous stout teeth apically ( Fig. 226 View PLATE 17 ).

Pupa. [Measurements taken from the original description.] Cocoon length dorsally 2.0– 2.3 mm; ventrally 2.5–2.8 mm; gill length 1.5–1.7 mm.

Cocoon— slipper-shaped as in Fig. 239 View PLATE 19 , composed of thick, coalesced fibres posteriorly with reinforced rim to anterior aperture, margin of aperture elevated.

Gill— dark brown with eight forwardly-directed arranged in vertical plane. Gill with main trunk short, giving rise to two sets of primary branches, one dorsal and one ventral; dorsal primary branch bifurcating in basal third into internal and external secondary branch, each then dividing at different heights into three tertiary; ventral primary branch bifurcating in basal tenth ( Fig. 253 View PLATE 22 ). Dorsal primary branch relatively stouter than ventral. All rounded distally, covered with small spicules on surface, edges crenate; of different length.

Head— frontoclypeus with 2+2 long simple and 1+1 single or bifid long facial trichomes; frontoclypeus with distinct group of platelets mesally, 1+1 dorso-laterally and 3–4 platelets in two groups laterally in frontal region, respectively; tubercles absent.

Thorax— with approximately six long bifid (some simple) trichomes near dorsal cleft, one long simple trichome on posterior region, and nearly four simple trichomes on ventral margin; tubercles rounded, lightly distributed along anterior margin and pointed and densely distributed along posterior margin near dorsal cleft, central region of thorax without tubercles.

Abdomen— tergite I with 1+1 submedian simple trichomes; tergite II with three submedian spiniform setae in row, one sublateral seta and 2+2 simple setae anterior to outermost spiniform setae; tergites III–IV with four spiniform setae in row, one simple small seta anterior to outermost spiniform setae and 1+1 lateral simple setae; tergites V–VII without setae; tergite VIII with spine combs resembling teeth on anterior margin; tergite IX weakly sclerotised with 1+1 small terminal spines. Sternite V with 2+2 adjacent, bifid hooks in row on posterior margin; sternites VI–VII with 2+2 well separated simple or bifid hooks on posterior margin. Spine combs on anterior margins of tergites V–IX.

Larva. A description of the larva is given by Coscarón (1982; 1991) and Coscarón & Coscarón-Arias (2007).