Simulium wygodzinskyorum Coscarón & Py-Daniel, 1989 : 318, Coscaron & Py-Daniel, 1989

Nascimento, Jeane Marcelle Cavalcante Do, Hamada, Neusa & Huamantinco-Araujo, Ana A., 2016, New morphological information on Simulium wygodzinskyorum Coscarón & Py-Daniel, 1989 (Diptera: Simuliidae), Zootaxa 4117 (2), pp. 289-300: 291-295

publication ID

http://doi.org/10.11646/zootaxa.4117.2.10

publication LSID

lsid:zoobank.org:pub:A1FC7360-8804-4456-97BC-2B359A09D16D

persistent identifier

http://treatment.plazi.org/id/0396BD4F-FF8A-FFE4-2CFC-FDD640713B9E

treatment provided by

Plazi

scientific name

Simulium wygodzinskyorum Coscarón & Py-Daniel, 1989 : 318
status

 

Simulium wygodzinskyorum Coscarón & Py-Daniel  

Simulium (Grenieriella) wygodzinskyorum Coscarón & Py-Daniel 1989: 319   .

Simulium (Trichodagmia) wygodzinskyorum Crosskey & Howard 1997: 79   ; 2004: 74; Miranda Esquivel & Coscarón 2001: 429 – 435; Coscarón-Arias 2003: 191, 206; Coscarón, Coscarón-Arias & Papavero 2008: 50; Hernández-Triana 2011: 170; Adler & Crosskey 2016.

Larva (last-instar) ( Figs 2 View FIGURE 2 A –E to 6 A –I). Body length 4.6 –5.0 mm (mean = 4.8 mm, SD = 0.13, n = 5); head capsule, mean lateral length 0.72–0.9 mm (mean = 0.8 mm, SD = 0.05, n = 6). General color, dorso-laterally varying from dark green to brownish green, ventrally whitish ( Figs 2 View FIGURE 2 A –E).

Head capsule wrinkled, with small simple setae distributed on all over it; general coloration varying from brown to yellowish brown ( Figs 4 View FIGURE 4 A –D; 5 A –C); in dorsal view, frontoclypeal apotome with central area lighter and posterior margin, usually, with a brown triangular mark ( Figs 4 View FIGURE 4 B –C); with 1 + 1 lateral, short, elongated marks (more evident in some individuals) ( Figs 4 View FIGURE 4 A –D). Head, in dorsal view, with 1 + 1 small, whitish spots located above the ocelli ( Figs 4 View FIGURE 4 A- D); in lateral view with yellowish marks near posterior margin ( Fig. 5 View FIGURE 5 C); in ventral view with 1 + 1 elongated yellowish marks ( Figs 5 View FIGURE 5 A, B), located near the posterior margin. Cervical sclerites small, elliptical, free in the membrane ( Fig. 6 View FIGURE 6 D). In ventral view, postgenal cleft deep, subtriangular, with lateral margins parallel near posterior margins, covered with pigmented tissue ( Figs 5 View FIGURE 5 A, B); postgenal bridge 0.56 times the hypostoma length ( Fig. 6 View FIGURE 6 B); subesophageal ganglion not pigmented ( Figs 5 View FIGURE 5 A, B). Antenna ( Fig. 6 View FIGURE 6 E) shorter than labral fan stalk; proximal article shorter than distal and medial articles, distal article shorter than the medial one, proportions of articles (proximal: medial: distal, excluding apical sensillum) 1: 0.36–0.5: 1.33–1.75 (n= 10); general coloration yellowish brown, except base of distal article and part of half distal region of medial article whitish (see Fig. 6 View FIGURE 6 E). Labral fan with 30–42 primary rays, general coloration yellowish brown; rays with microtrichia arranged as follows: an alternating series of one long microtrichium and three slightly shorter ones ( Fig. 6 View FIGURE 6 C). Hypostoma ( Figs 6 View FIGURE 6 A, B) with anterior margin straight, strongly pigmented; medial region with a dark longitudinal stripe wide at the posterior margin; with nine simple teeth; median and lateral teeth similar in length and longer than 3 + 3 sublateral teeth; lateral teeth wider at their base than the median and sublateral teeth; with 3–5 + 3–5 lateral serrations; hypostoma with 1 + 1 lines of 7–8 sublateral seta, 1 + 1 bifid setae on basal 1 / 5 and 1–2 + 1–2 small setae near hypostomal groove. Mandibular teeth: one apical, two external; three subapical; 6 or 7 internal teeth; one mandibular serration and one small mandibular sensillum (sensu Craig & Craig 1986); four latero-mandibular processes thick and bifurcated on apical 1 / 3 ( Figs 6 View FIGURE 6 F, G). Body cuticle with sparsely distributed short, simple setae; abdomen with 1 + 1 dorso-lateral tubercles on segments II –VIII (less frequently on segments I –VIII or III –VIII), varying from well-developed to poorly developed ( Figs 2 View FIGURE 2 A –E; 3 A, B); ventral tubercles absent; gill histoblast dissected with 12 filaments. Arms of anal sclerite as in Figure 6 View FIGURE 6 I, anterodorsal arms 0.45–0.60 as long as posteroventral arms, associated with some thin, short setae. Posterior circlet bearing 169– 191 rows (n= 6) with 20–29 hooks (n= 9). Rectal papilla ( Fig. 6 View FIGURE 6 H) with three branches, each with approximately 25–35 finger-shaped lobes (n= 2); total number of lobes varying from 89 to 92.

Pupa ( Figs 7 View FIGURE 7 A –B to 9 A –J). Cocoon tightly woven, light brown, boot-shaped, with anterior rim slightly thickened ( Figs 7 View FIGURE 7 A, B, 8 C). Thorax with 4 + 4 pairs of multiramous trichomes (3–4 branches) ( Figs 8 View FIGURE 8 D). Gills ( Figs 7 View FIGURE 7 A, B, 8 A) with 12 grayish brown, stout, crenulated filaments ( Fig. 8 View FIGURE 8 B) distributed in a three-dimensional pattern: main trunk short, giving rise to four sets of primary branches, two with two secondary branches and two with four secondary branches; filaments branching at different heights; with tips pointed or slightly rounded, not sclerotized ( Figs 8 View FIGURE 8 A, B); basal fenestra evident ( Fig. 8 View FIGURE 8 A). Abdominal ( Fig. 9 View FIGURE 9 ) tergite I dark, sclerotized on proximal ¾, with one pair of anterolateral setae; tergite II with a small sclerotized area on anteromedial region, with 4 + 4 central stout setae in the medial region of the tergite ( Fig. 9 View FIGURE 9 A), two pairs of short sublateral setae; tergites III and IV each with 4 + 4 anteriorly directed pairs of stout, simple hooks on posterior margin of the central region of the tergite ( Figs 9 View FIGURE 9 B, C); tergite III with three pairs of short lateral setae on posterior margin; tergite V without setae or spines; tergite VI with comb-like groups of fine posteriorly directed microspines on antero-lateral region; tergites VII with a row of comb-like groups of fine posteriorly directed microspines near anterior margin ( Fig. 9 View FIGURE 9 D); tergite VIII with a sclerotized comb of strong spines (posteriorly directed) located along the anterior region of the tergite ( Fig. 9 View FIGURE 9 E); tergite IX with a sclerotized comb of strong spines (inward directed), located along the anterior margin of the tergite ( Fig. 9 View FIGURE 9 F), median region of the comb with scarce spines; tergite IX with one pair of short spines, posteriorly. Sternites IV –VII with comb-like groups of fine posteriorly directed microspines on central, anterior region ( Fig. 9 View FIGURE 9 H); sternite VIII with comb-like groups of fine posteriorly directed microspines on Male genitalia ( Figs 10 View FIGURE 10 A –G). Gonocoxite and gonostylus ( Figs 10 View FIGURE 10 A, B, G) yellowish brown, covered with long, thick setae; in ventral view, gonocoxite around 1.4 times wider than long, with proximal and apical region sclerotized and a central triangular region not sclerotized ( Fig. 10 View FIGURE 10 G); gonostylus longer than wide ( Figs 10 View FIGURE 10 A, G), around 1.2 times the gonocoxite length, bearing one stout spinule at the apex. Ventral plate ( Figs 10 View FIGURE 10 C, D, F) rectangular (three times wider than high), with main body and median anterior projection covered with thin setae; in dorsal view, distal margin of ventral plate body concave medially, the base of the median anterior projection is inserted posteriorly to this concave margin, represented in this view by a rounded invaginated region that occupies almost the entire length of the mesal region of the ventral plate ( Fig. 10 View FIGURE 10 C); in ventral view, median anterior projection as wide as long, slightly surpassing the distal margin ( Fig. 10 View FIGURE 10 D); in lateral view, median anterior projection elongated, anteriorly projected, with basal region wide, narrowing toward apical region ( Fig. 10 View FIGURE 10 E); in ventral view (with the apex tilted dorsally) median anterior projection 1.6 times longer than wide, apex rounded ( Fig. 10 View FIGURE 10 F); proximal margin of the ventral plate body at the median region V-shaped ( Figs 10 View FIGURE 10 C, D, F).

Material examined. Peru, Chanchamayo Province, San Ramón District , Junín Region , Uarango River (11 °08' 41.2 "S, 75 ° 24 ' 11.9 "W, 1017 m), 09/viii/ 2014, N. Hamada, J.M.C. Nascimento, R.L. Ferreira-Keppler & S.M. Clemente, cols.: 12 larvae on slides— 4 ( INPA) and 8 (MHN-UNMSM), 3 pupae on slides— 2 ( INPA) and 1 (MHN- UNMSM), 8 larvae in ethanol— 3 ( INPA) and 5 ( MHN-UNMSM), male (pharate adult) on slide ( INPA), 5 non-last instar larvae— 2 ( INPA) and 3 ( MHN-UNMSM) GoogleMaps   .

Other material examined.

Simulium wygodzinskyorum Coscarón & Py-Daniel, 1989: 318   .

Paratype male and pupal exuviae. Peru: Junin, San Ramón, Estancia El Naranjal , altitude 1000 m; 20 -vii- 1965 (P. & B. Wygodzinsky) (housed at the Museo de La Plata—MLP, La Plata, Argentina).  

Simulium wygodzinskyorum   :

Larva on slide. Ecuador, Ningo, vii- 2000, (C.L. Coscarón-Arias) (housed at the Museo de La Plata—MLP, La Plata, Argentina).  

INPA

Instituto Nacional de Pesquisas da Amazonia

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Simuliidae

Genus

Simulium

Loc

Simulium wygodzinskyorum Coscarón & Py-Daniel, 1989 : 318

Nascimento, Jeane Marcelle Cavalcante Do, Hamada, Neusa & Huamantinco-Araujo, Ana A. 2016
2016
Loc

Simulium (Trichodagmia) wygodzinskyorum

Hernandez-Triana 2011: 170
Coscaron-Arias 2003: 191
Esquivel 2001: 429
Crosskey 1997: 79
1997
Loc

Simulium (Grenieriella) wygodzinskyorum Coscarón & Py-Daniel 1989 : 319

Coscaron 1989: 319
1989