Prexaspes globosicaput, Conle & Hennemann & Bellanger & Lelong & Jourdan & Valero, 2020

Conle, Oskar V., Hennemann, Frank H., Bellanger, Yannick, Lelong, Philippe, Jourdan, Toni & Valero, Pablo, 2020, Studies on neotropical Phasmatodea XX: A new genus and 16 new species from French Guiana, Zootaxa 4814 (1), pp. 1-136 : 76-80

publication ID 10.11646/zootaxa.4814.1.1

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scientific name

Prexaspes globosicaput

sp. nov.

Prexaspes globosicaput View in CoL n. sp.

( Figs. 36–38 View FIGURE 36 View FIGURE 37 View FIGURE 38 )

HT, ♀: Französisch Guyana: Commune de Régina, Réserve Naturelle des Nouragues—Camp Inselberg, 4°05’ N– 52°41’W, 411m, S.E.A.G., Lichtfang, leg. Stéphane Brûlé 18.05.2013; ex coll. Conle; OC-0341-1 [ ZSMC] GoogleMaps .

PT, 1 ♀: Französisch Guyana: Commune de Saül, Aussichtspunkt Belvedere de Saül, 3°37’22”N– 53°12’57”W, 326m, S.E.A.G., leg. Stéphane Brûlé 30.09.2010 [coll. OC, No. 0341-2] GoogleMaps .

PT, 1 ♂: Französisch Guyana: Commune de Roura, Montagne des Chevaux, RN2 PK22 4°44’56”N– 52°26’28”W, 75m, S.E.A.G., leg. Stéphane Brûlé 03.11.2013 [coll. OC, No. 0341-3] GoogleMaps .

Etymology. The name of this new species refers to the strongly globose vertex of ♀♀, which readily distinguishes it from the other species of the genus known to occur in French Guiana.

Differentiation. Easily distinguished from all other Prexaspes -species known from French Guiana by the annulated legs of both sexes and strongly globose head of ♀♀.

Description. ♀ ( Figs. 36–37 View FIGURE 36 View FIGURE 37 ). Medium sized for the genus. Length of body 53.8–54.1 mm. Head drab yellowish to greenish brown with black markings and numerous rows of small and irregular yellow granules. Vertex distinctly convex and slightly swollen, compared to other species of the genus. Eyes large, yellowish beige, ocelli orange. Antennae black with irregular yellow annulations.

Thorax dark brown and yellowish beige, covered with many tiny yellow granules. Pro- and mesosternum yellow, metasternum and metapleurae beige with several black spots. Tegmina brown, covered with yellow veins, having yellow speckles in apical half; acute and black apices on the sub-basal elevations. Costal area of alae brown with fine yellow veins and some large yellow speckles. Anal area of alae uniformly brownish translucent. Abdomen dorsally brown with irregular black and yellow speckles; ventral side beige with some darker markings. Sternum VII with an indistinct praeopercular organ, forming a lump-like median swelling near posterior margin. Cerci slightly projecting over posterior margin of anal segment, straight and tapered towards the end, yellowish-brown. Subgenital plate flat, slender and parallel sided, posterior margin pointed towards apex, at best reaching posterior margin of tergum IX, of dark brown colour. Legs distinctly annulated in green and yellow; knees black.

Measurements HT [mm]: Body 53.8, pronotum 3.4, mesonotum 4.9, metanotum 5.2, median segment 5.1, tegmina 7.9, alae 39.9, profemora 9.8, mesofemora 6.7, metafemora 10.0, antennae 43.4.

Measurements PT [mm]: Body 54.1, pronotum 3.5, mesonotum 5.1, metanotum 5.0, median segment 5.6, tegmina 8.4, alae 40.3, profemora 11.2, mesofemora 7.0, metafemora 10.0, antennae 45.5.

♂ ( Fig. 38 View FIGURE 38 ). Length of body 44.3 mm. Similar to ♀, but more slender and vertex less globose. Eyes very large and pale brown. Ocelli beige to yellow, antennae less distinctly annulated. Anal segment tectiform, inner side of posterior margin set with numerous in-curving teeth ventrally. Cerci slightly projecting over posterior margin of anal segment, gently curved and tapered towards the end, pale brown. Poculum flat and elongate, posterior margin rounded, reaching to centre of anal segment.

Measurements PT [mm]: Body 44.3, pronotum 2.3, mesonotum 4.4, metanotum 3.5, median segment 4.0, tegmina 5.8, alae 29.3, profemora 10.6, mesofemora 6.3, metafemora 8.7, antennae 53.0.

Distribution. French Guiana: Commune de Roura, Montagne des Chevaux [coll. OC]; Commune de Saül, Aussichtspunkt Belvedere de Saül [coll. OC]; Commune de Régina, Réserve Naturelle des Nouragues—Camp Inselberg [ZSMC].


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