Edessa (E.) sexdens Fabricius, 1803
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publication ID |
https://doi.org/ 10.11646/zootaxa.5240.1.1 |
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lsid:zoobank.org:pub:2FE467C1-EAC2-4E90-B673-CCE2CCA93C1D |
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https://doi.org/10.5281/zenodo.7639927 |
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persistent identifier |
https://treatment.plazi.org/id/03B487C0-FFE7-2521-FF47-C474FFF1FC37 |
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Plazi |
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Edessa (E.) sexdens Fabricius, 1803 |
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Edessa (E.) sexdens Fabricius, 1803
( Figs. 20 View FIGURE 20 , 21 View FIGURE 21 , 29 C,D View FIGURE 29 , 30 A View FIGURE 30 )
Edessa sexdens Fabricius, 1803: 148 ; Stål, 1868: 36; Lethierry & Severin, 1893: 194; Kirkaldy, 1909: 164.
Edessa nigromarginata Distant, 1881: 392 : Kirkaldy, 1909: 161 syn. nov.
Edessa sexdens . Lectotype male. America Meridionali Smidt ( ZMUC). Examined by photos. ( Fig. 21 D View FIGURE 21 ) Paralectotypes. Same data. Two females ( ZMUK) and one male ( ZMUC) .
Edessa nigromarginata . Lectotype female. Jamaica ( NMI). Examined by photos.
Paralectotypes. Two females. same data ( BMNH). Examined .
Material examined. SURINAME, Paramaribo: 1♀, Paramaribo , 13-III-1962, V. Vreder leg. (Compared to the type —Fernandes JAM, 1999) ( RMNH) ; 1♁, Paramaribo, 26-X-1938, Geiiskes ( RMNH) ; Marowijne: 1♁ 1♀, Galibi , 9-XI-1948 ( RMNH) ; BRAZIL, Pará: 1♀, Mosqueiro, Belém, Gustavo Ruiz ( UFPA) .
Measurements (n= 4). Total length: 15.3–16.8; head length: 1.2–1.4; head width: 2.7–2.8; pronotum length: 3.0–3.2; pronotum width: 9.5–10.5; scutellum length: 7.7–8.5; scutellum width: 5.0–5.5; abdominal width: 8.1–8.7; length antennomers: I: 0.9–0.9; II: 1.0–1.0; III: 1.5–1.9; IV: 2.7–3.2; V: 3.0.
Diagnosis. Specimens large (15.3–16.8 mm). Dorsal surface olive green ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ). Ventral surface dark yellow to brown with transversal black lines on thorax and abdomen ( Figs. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Antennae brown ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ). Pronotum with punctures brown; anterolateral margin and cicatrices with black punctures ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ). Humeral angles short (1,6 times wider than long) ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ), apices concolorous with surface and not recurved ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ). Scutellum with punctures brown ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ); apex surpasses end of corium ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ). Corium with all veins concolorous with surface ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ). Posterolateral angles of connexivum with apices black ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ); connexival segments with concavities almost entirely covered by rectangular black spots and separated by a large pale yellow median spot ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ); spots extending ventrally, subrectangular ( Figs. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Ventral surface. Thorax with black stripes ( Figs. 21 B View FIGURE 21 , 29 D View FIGURE 29 ); dark stripe of the propleuron connected to the dark spot of the humeral angle ( Fig. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Proepisternum with dark stripe ( Fig. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Evaporatorium concolorous with thorax ( Fig. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Metasternal process ( Fig. 20 G View FIGURE 20 ) with anterior apex straight and laterally well expanded, margin acuminated; anterior face little excavated; anterior bifurcation receiving fourth rostral segment. Legs brown ( Fig. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Abdomen with spine of third segment acuminated ( Fig. 20 G View FIGURE 20 ). Intersegmental areas black, not reaching ventral spots of connexivum ( Fig. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Pseudosutures solid black, margin well-defined ( Figs. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Each segment with anterior and posterior white lines ( Fig. 21 B View FIGURE 21 ). Median longitudinal dark band incomplete in varying degrees ( Figs. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Trichobotria one in line with spiracle and the other laterad. Posterolateral angles of segment VII surpass the level of apices of laterotergites IX in females ( Fig. 20 F View FIGURE 20 ). Male genitalia, dorsal side of the pygophore with a suffused brown area occupying 1/3 of the surface ( Fig. 20 A,B View FIGURE 20 ). Posterolateral angle of the pygophore developed ( Fig. 20 A View FIGURE 20 ). Superior process of genital cup laminar, tumid, rectangular, thick, with a groove in posterolateral view; flattened and coarse in posterior view, continuing ventrally in a crenulated short carina ( Fig. 20 B,D,E View FIGURE 20 ). Ventral rim with lateral subdistal tuft of setae ( Fig. 21 C View FIGURE 21 ). Female genitalia, valvifers VIII with a small dentiform projection that protrudes into the valvifers IX ( Fig. 20 F View FIGURE 20 ). Laterotergites VIII with two small dark spots on outer lateral margins ( Fig. 20 F View FIGURE 20 ).
Male genitalia ( Figs. 20 A–E View FIGURE 20 , 21 C View FIGURE 21 ): Parameres with brown margin; anterior lobe little developed and rounded; dorsal lobe rounded with curved apex; posterior lobe rounded ( Fig. 20 B,D,E View FIGURE 20 , 21 C View FIGURE 21 ). Proctiger with subtriangular posterior face ( Figs. 20 D,E View FIGURE 20 , 21 C View FIGURE 21 ). Ventral rim with expansions little developed, rounded, concolorous with surface, the expansions not reaching beyond apices of posterolateral angles ( Fig. 20 C View FIGURE 20 ).
Female genitalia: Valvifers VIII with dark punctured; inner margins contiguous, with brown band and not divergent; distal margin forming distal U-shaped excavation, brown and arched. Laterotergites IX with apices acuminate passing the sclerite uniting laterotergites VIII ( Fig. 20 F View FIGURE 20 ).
Comments. The syntypes of Edessa sexdens were divided between the Kiel and Copenhagen museums, following a well-known division of Fabricius’ material. The lectotype designated here has an original blue label ( Fig. 21 D View FIGURE 21 ). Edessa (E.) sexdens resembles E. (E.) alces , E. (E.) congrua , and E. (E.) urus , but it can be separated from them by the black punctures in the cicatrices of pronotum ( Fig. 29 C View FIGURE 29 ) and the scutellum reaching or surpassing the level of the distal angle of the corium ( Fig. 29 C View FIGURE 29 ), while in the other species the scutellum clearly does not reach the end of the corium ( Fig. 24 A,E View FIGURE 24 ). See E. (E.) alces for additional comments.
Distribution ( Fig. 30 A View FIGURE 30 ): JAMAICA; SURINAME: Marowijne, Paramarinbo; BRAZIL: Pará.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Edessa (E.) sexdens Fabricius, 1803
| Mendonça, Maria Thayane Da Silva, Silva, Valéria Juliete Da & Fernandes, José Antônio Marin 2023 |
Edessa nigromarginata
| Kirkaldy, G. W. 1909: 161 |
Edessa sexdens
| Kirkaldy, G. W. 1909: 164 |
| Lethierry, L. & Severin, G. 1893: 194 |
| Stal, C. 1868: 36 |
| Fabricius, J. C. 1803: 148 |