Longidorus africanus Merny, 1966

Archidona-Yuste, Antonio, Cantalapiedra-Navarrete, Carolina, Castillo, Pablo & Palomares-Rius, Juan E., 2019, Molecular phylogenetic analysis and comparative morphology reveals the diversity and distribution of needle nematodes of the genus Longidorus (Dorylaimida: Longidoridae) from Spain, Contributions to Zoology 88, pp. 1-41 : 30-33

Longidorus africanus Merny, 1966 ( fig. 10 , table 4)

Remarks. The Spanish population of this species was detected in the rhizosphere of lemon trees in Álora, Málaga, southern Spain ( table 4). This population was characterised by a lip region broadly rounded, separated from the rest of the body contour by a very slight depression; amphidial fovea slightly bilobed posteriorly; female tail dorsally convex-conoid with a broadly rounded terminus; male specimens not found. Morphology and morphometrics of our specimens agree closely with other studied populations from South Africa (Jacobs & Heyns, 1987), Sudan (Zeidan & Coomans, 1991), Portugal (Bravo & Roca, 1995), Egypt (Lamberti et al., 1996), and Tunisia (Guesmi-Mzoughi et al., 2017). This specimen is the first report of this species in Spain and confirms its wide distribution in the Mediterranean Basin. According to the polytomous key by Chen et al. (1997), the supplement by Loof & Chen (1999), and additional codes (Peneva et al., 2013; Archidona et al., 2016), this species has the following code: A32-B1-C2-D2-E2-F2-G23-H23-I12-J1–K6.

Longidorus carpetanensis Arias, Andrés & Navas ,

1986 ( fig. 11 , table Downloaded4) from Brill.com 08/29/2023 05:44:51 PM

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Remarks. Longidorus carpetanensis was originally described from around roots of common broom ( Cytisus scoparius L.), in Navalmoral, Avila Province, Spain. Subsequently, Bravo & Lemos (1997) reported it in the rhizosphere of cereals and peach trees from Constância and Abrantes, province of Ribatejo, Portugal.A Longidorus population resembling this species was detected in the rhizosphere of common oak, at Puebla de Sanabria, Zamora Province, Spain, which prompted us to study this population and to characterise molecularly the topotype specimens in order to confirm its identification.

The population of Puebla de Sanabria agrees closely with original description (Arias et al., 1986) in morphology and morphometry ( fig. 11 and table 4). This study expands its distribution to another province in north-western Spain. According to the polytomous key by Chen et al. (1997), the supplement by Loof & Chen (1999), and additional codes (Peneva et al., 2013; Archidona et al., 2016), this species has the following code: A12-B12-C2-D4-E3-F2-G2-H56-I2-J1–K?.

Figures

FIGURE 10 Light micrographs of Longidorus africanus Merny, 1966.(A) female anterior region. (B) female lip region. (C) vulval region. (D)–(E) female tails.Abbreviations:a = anus; gr = guiding ring; v = vulva. Scale bars = 20 μm

Figure 11 Light micrographs of Longidorus carpetanensis Arias et al., 1986 from Puebla de Sanabria, Zamora (A)–(F), and topotypes from Navalmoral, Avila (G)–(L). A–C, G and H, female anterior regions.D, I, female tails.E and F, J and L, male tail with detail of spicules.Abbreviations:a = anus; gr = guiding ring; spl = ventromedian supplements. Scale bars = 20 µm