Grammedessa stichtocephala Da Silva & Fernandes, 2022

Silva, Paulo Augusto Lima Da & Fernandes, José Antônio Marin, 2022, Description of six new species to Grammedessa Correia & Fernandes, 2016 (Heteroptera: Pentatomidae: Edessinae), Zootaxa 5129 (2), pp. 211-226 : 222-223

publication ID

https://doi.org/ 10.11646/zootaxa.5129.2.3

publication LSID

lsid:zoobank.org:pub:9C6AA20A-75E7-4194-85A6-3AAFDBCE2926

DOI

https://doi.org/10.5281/zenodo.6500699

persistent identifier

https://treatment.plazi.org/id/03A187E4-2159-FFF3-FF22-18F3FC53FE81

treatment provided by

Plazi

scientific name

Grammedessa stichtocephala Da Silva & Fernandes
status

sp. nov.

Grammedessa stichtocephala Da Silva & Fernandes sp.n.

( Figs. 1K–L View FIGURE 1 ; 7A–C View FIGURE 7 )

Diagnosis. Length 14.7 mm. Width 9.5 mm. Dorsally dark yellow. Beneath uniformly yellow ( Fig. 1K–L View FIGURE 1 ). Head with a rectangular, small, median, punctured, black maculae between ocelli ( Fig. 1K View FIGURE 1 ). Pronotal disc with punctures brown; posterior margin with a band of black punctures. Scutellum with black punctures on black spots forming a few irregular lines ( Fig. 1K View FIGURE 1 ). Humeral angles projection short, dentiform. Costal margin of corium densely punctured, punctures small and brown ( Fig. 1K View FIGURE 1 ); hypocostal ridge with few, black, small punctures on spots. Beneath uniformly and densely punctured, except on median line; punctures brown to black, most on black spots ( Fig. 1L View FIGURE 1 ). Ventral rim of the pygophore deeply excavated, almost as excavated as dorsal rim ( Fig. 7A View FIGURE 7 ).

Description. Head wider than long (1.4 times). Antennal segments I–III and base of fourth spotted. Thorax: Pronotum wider than long (3.4 times); cicatrices delimited by punctures, weakly punctuated. Evaporatorium slightly darker than pleura, densely punctured, dull, and slightly shagreen; lateral areas oval and punctured ( Fig. 1L View FIGURE 1 ). Metasternal process yellow; anterior bifurcation with arms strongly acuminate; with few spots posteriorly. Legs not spotted ( Fig. 1L View FIGURE 1 ). Abdomen: connexivum with punctures shallow; segments III–VI with medial callus. Both trichobothria lateral to spiracles.

Male ( Fig. 7 View FIGURE 7 ). Pygophore dark yellow, subtrapezoidal (1.1 times), dorsal rim slightly projected over the genital cup. Posterolateral angles strongly developed ( Fig. 7A View FIGURE 7 ), shallowly concave, inner part outlined by a stripe of dark brown punctures. Superior processes of the genital cup large, subtriangular, touching the dorsal rim of the genital cup. Parameres with anterior lobe rounded, posterior lobe small and dentiform connected with a long black carina ( Fig. 7C View FIGURE 7 ). Proctiger yellow, elongated (1.5 times); slightly constricted laterally; carina of the posterior surface restricted to basal half ( Fig. 7C View FIGURE 7 ). Ventral rim strongly excavated, widely opened, almost level with dorsal rim ( Fig. 7A–B View FIGURE 7 ); expansions indicated only by a tumid, black, densely punctured rim ( Fig. 7C View FIGURE 7 ). Ventral surface densely punctured with punctures of different sizes, concolorous to black, some on brown spots ( Fig. 7B View FIGURE 7 ).

Etymology. Named for the punctured black rectangular mark on the head between ocelli. From the Greek. Stiktos (punctured) and Cephalus (head).

Comments. This species probably has the same body color as G. longispina sp.n., but all specimens examined are completely yellow. This species is also known only from males that have the ventral rim of pygophore extremely excavated. This species differs from G. longispina sp.n. by the legs without large black spots.

Examined material (n=3). Holotype: FRENCH GUIANA: Régina. [Arataye region, Saut-Pararé , mission, 17.II/ 06.III.1981, M. & C. Boulard leg.] MNHN (EH) 138 (1Male-MNHN) . Paratypes: FRENCH GUIANA: Régina. [Nouragues, Saut-Pararé 4°02’N / 52°41’W, 20.II.2010, S.E.A.G. leg., coll. R. Lupoli] (1Male-RL) GoogleMaps . SURINAME: Sipaliwini. [Itani, Carbet Lavaud, Rive Surinamienne 5°29’N / 54°10’W, Mission M. Boulard, P. Jauffret & P. Pompanon, 3–4.XII.1975] (1Male-UFRG) GoogleMaps .

Distribution. FRENCH GUIANA: Régina. SURINAME: Sipaliwini.

MNHN

Museum National d'Histoire Naturelle

R

Departamento de Geologia, Universidad de Chile

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Pentatomidae

Genus

Grammedessa

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