Grammedessa acalyptoprocta Da Silva & Fernandes, 2022
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.6500701 |
persistent identifier |
https://treatment.plazi.org/id/03A187E4-215F-FFF1-FF22-1B92FDD0FC2D |
treatment provided by |
Plazi |
scientific name |
Grammedessa acalyptoprocta Da Silva & Fernandes |
status |
sp. nov. |
Grammedessa acalyptoprocta Da Silva & Fernandes sp.n.
( Figs. 1M–N View FIGURE 1 ; 8A–C View FIGURE 8 )
Diagnosis. Length 19.7 mm. Width 13 mm. Body green with tiny yellow speckles; beneath abdomen with a medial yellow large spot. Densely punctured, punctures brown ( Fig. 1M View FIGURE 1 ). Bucculae punctured, some punctures dark. Humeral angles projection developed, dentiform, ventrally punctured ( Fig. 1N View FIGURE 1 ). Hypocostal ridge green with yellow speckles and brown punctures. Beneath thorax densely punctured, punctures coarse and brown; abdomen shagreen and sparsely punctured, punctures small and concolorous with the background ( Fig. 1N View FIGURE 1 ). First three and base of fourth antennal segments with dense, small dark spots. Legs with dense dark spots. Dorsal rim of pygophore with small rounded projections above superior processes of the genital cup ( Fig. 8A View FIGURE 8 ); ventral rim more excavated than dorsal rim leaving anal opening completely exposed ( Fig. 8A–B View FIGURE 8 ).
Description. Head wider than long (1.5 times). Thorax: pronotum wider than long (3 times); cicatrices with a row of concolorous punctures, delimited by groove and punctures. Evaporatorium dull, whitish, not punctured, shagreen; lateral areas coarsely punctured, not spotted, half-moon shaped ( Fig. 1N View FIGURE 1 ). Metasternal process yellow; anterior bifurcation with arms abruptly acuminate; not spotted ( Fig. 1N View FIGURE 1 ). Abdomen: connexivum densely punctuated, punctures green; segments III–VI medially with a callus; segment VII with distal margin and a few distal punctures black. Beneath both trichobothria lateral to spiracles.
Male ( Fig. 8A–C View FIGURE 8 ). Pygophore yellow, trapezoidal (1.1 times). Dorsal rim sinuous and slightly projected over the genital cup ( Fig. 8A View FIGURE 8 ). Posterolateral angles strongly developed, shallowly concave; inner part with a large brown spot and outlined by a narrow dark stripe ( Fig. 8 A–B View FIGURE 8 ). Superior processes of the genital cup elliptic, projected dorsally passing dorsal rim ( Fig. 8C View FIGURE 8 ). Parameres posteriorly carinated; anterior lobe developed and subtriangular; posterior lobe short and triangular ( Fig. 8C View FIGURE 8 ). Proctiger brown, elongated (1.3 times); medial carina of the posterior surface bifurcated on distal half ( Fig. 8A–B View FIGURE 8 ). Ventral rim widely opened, strongly excavated, more than dorsal rim ( Fig. 8A View FIGURE 8 ); expansions developed, tumid, close to posterolateral angles ( Fig. 8A–C View FIGURE 8 ); curved inwards, densely punctured, black.Ventral surface densely punctured close to the ventral rim, punctures of different sizes, concolorous to black, a few on brown spots ( Fig. 8B View FIGURE 8 ).
Etymology. Named by its exposed anal opening caused by an extremely excavated ventral rim. From the Greek. Akalyptos (uncovered) and Proktos (anus, hinder parts).
Comments. Resemble G. brunneotarsata by its non-spotted tegument and shape of parameres; but can be differentiated by its spotted outer faces of the bucculae, trichobothria lateral to spiracles, and the upper half of posterior face of pygophore with keel medially sulcate.
Examined material ( n=1). Holotype: BRAZIL: Maranhão.[REBIO-Res.Biol.Gurupi, 03°14’01”S / 46°40’52”W, 03–07.V.2011, M.M. Abreu & J.A. Silva Cols] (1Male-MPEG). GoogleMaps
Distribution. BRAZIL: Maranhão.
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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