Agrostia longicerca, 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 : 51-54
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HT, ♂: Trois Sauts, 10-III-1976; Museum Paris, Guyane (Oyapock), M. Descamps rec. [ MNHN] .
PT, 1 ♂: 22.VII., A3 S4 N°3, P.E. Roubaud det. [ MNHN] .
PT, 1 ♂: Guyane, Montagne de Kaw , 5.–12.VIII. 92, Roubaud, Auvray, Rarchaert rec. [ MNHN] .
PT, 1 ♂: GUY13-064, 8–23.X.2013, Guyane fr.— Saül, rec. ASPER coll. ASPER; GUY13-064 , Saül—Guyane, 08–21.XI.2013, Col. ASPER : Y. Bellanger, T. Jourdan & P. Lelong [ ASPER-PL] .
PT, 1 ♀: Guyane, Sinamary , route menant au sentier de St Elie, 17.III.2012, coll. & leg. C. Bouladou-Dupré [ MNHN] .
PT, 1 ♀: 1 mai 2006 á vue, L. de téte 19h á 22h00, Chilibombo; rte P. lanard, forét de Margot, Th. Rosant (Guy. Fr.); Rosant Th. N ° 3946 [coll. TR, No. 3946] .
PT, 1 ♀: GUY15-015, Guyane, St-Elie, N 5°17.725’W 53°03.093’, 05-VIII-2015 rec. T. Jourdan [ ASPER-PL] .
PT, 1 ♀: GUY15-041, Guyane, Route de Mana , N 5°33.941’W 53°52.744’, 28-VII-2015 rec. T. Jourdan [ ASPER- PL] .
PT, 1 ♀: GUY15-042, Guyane, Route de Mana , N 5°33.941’W 53°52.744’, 28-VII-2015 rec. T. Jourdan [ ASPER- PL] .
PT, 1 ♂: GUY15-093, Guyane française, Scierie de St George , N 3°57.018’W 51°51.319’, 14-VIII-2015 rec. T. Jourdan [ ASPER-PL] .
PT, 1 ♂: GUY15-100, Guyane française, Route de Roura , N 4°41.757’W 52°18.339, 9-VIII-2015 rec. T. Jourdan [ ASPER-PL] .
PT, eggs: 1 from one of the 2 wild females: PT GUY15-041 or PT GUY15-042 (see above) [ASPER-PL]; 5 from 2 wild females: PT GUY15-041 and PT GUY15-042 (see above) [ASPER-YB].
Etymology. The name of this new species refers to its characteristic long and slender cerci that are considerably longer than the anal segment.
Differentiation. Similar to A. cinerea ( Olivier, 1792) , but distinguished by: the distinctly longer abdomen, somewhat shorter tegmina and the dark longitudinal median line along the entire ventral body surface in both sexes; the longer cerci that are at least 1.5x longer than the anal segment and longer, distinctly incised poculum, which reaches about half way along the anal segment in the ♂♂; as well as the distinctly longer gonapophysis VIII in the ♀♀ which reach towards the posterior margin of the anal segment.
Description. ♀ ( Fig. 22 View FIGURE 22 ). Of medium size for the genus. Length of body 71.4–75.0 mm. General colour of body pale straw to beige with indistinct dark mottling and spots. Antennae straw-coloured with black annulations, which can also be absent. Eyes pale straw to drab greenish. Ventral body surface from prosternum to subgenital plate with a ventromedian carina. Anal area of alae flesh-coloured to translucent brown. Legs straw-coloured to greenish-beige with indistinct mottling. Cerci prominent, distinctly pointed towards apex and at least as long as anal segment. Subgenital plate flat and pointed towards posterior, slightly projecting over posterior margin of abdominal segment VIII. Gonapophysis VIII elongate, forming flat and long lobes, reaching to posterior margin of anal segment.
Measurements PT [mm]: Body 71.4–75.0, pronotum 3.0–3.1, mesonotum 8.4–8.5, metanotum 4.9–5.5, median segment 6.8–7.0, tegmina 7.9–8.7, alae 41.8–44.2, profemora 13.5–16.0, mesofemora 8.9–10.0, metafemora 12.6–13.2, antennae 48.1–59.0.
♂ ( Figs. 23–24 View FIGURE 23 View FIGURE 24 ). Typical size but very slender body shape for the genus. Length of body 58.0– 64.4 mm. General colour of body pale straw to beige with indistinct dark mottling and tiny spots; ventral body surface from prosternum to poculum with a ventromedian carina. Antennae straw-coloured, sometimes with indistinct black annulations. Dark postocular line behind the eyes. Tegmina and costal area of alae of same colour as thorax, sometimes with some distinct small black spots. Anal area of alae flesh-coloured to brownish translucent. Legs straw-coloured to greenish-beige with indistinct mottling. Cerci prominent, distinctly pointed towards apex and at least 1.5x longer than anal segment. Anal segment distinctly narrowed towards posterior margin. Poculum elongate, reaching to centre of anal segment, distinctly incised at posterior margin.
Measurements HT [mm]: Body 60.1, pronotum 2.2, mesonotum 7.1, tegmina 5.7, alae 32.0, profemora 13.7, mesofemora 7.7, metafemora 11.8, antennae 82.8.
Measurements PT [mm]: Body 58.0–64.4, pronotum 2.4–2.6, mesonotum 5.2–6.3, metanotum + median segment 9.5–10.0, tegmina 5.7–6.1, alae 33.1–34.4, profemora 13.6–15.2, mesofemora 7.9–8.1, metafemora 11.2–12.0, antennae 58.2–61.8.
Egg ( Fig. 22 View FIGURE 22 ). Of large size for the genus. Capsule very elongated and almost cylindrical, slightly higher than wide, 2.7 longer than wide and 2.5 times longer than high. Capsule brown to dark brown, surface covered by a fine and irregular net-like structure of carinae with smooth areas in between. Micropylar plate elongate and 2/3 the length of capsule, 4x longer than wide; irregularly raised elevations in its centre. Micropylar cup small and connected to a long median line, running towards polar area. Operculum ovoid and flat, positioned in 45° angle towards the dorsal area; surface roughly structured.
Measurements PT [mm]: Length 4.0, width 1.7, height 1.7, diameter of operculum 1.2–1.3.
Distribution. The species is so far known from French Guiana: Montagne de kaw [coll. FH, MNHN], Commune de Saül [coll. OC, ASPER], Sinnamary [MNHN], Chilibombo [TR], St-Laurent-du-Maroni [ASPER], St-Elie [ASPER], Route de Mana [ASPER], Scierie de St George [ASPER], Trois Sauts, Oyapock River [MNHN]. Most likely, also found throughout the northeastern portions of Brazil.
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