Research Article |
Corresponding author: Boutaïna Belqat ( b_belqat@hotmail.com ) Academic editor: Jukka Salmela
© 2015 Ouafaa Driauach, Boutaïna Belqat.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Driauach O, Belqat B (2015) A new species of the genus Baeoura from Morocco, with a key to the West Palaearctic species (Diptera, Tipuloidea, Limoniidae). ZooKeys 532: 99-105. https://doi.org/10.3897/zookeys.532.5994
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The genus Baeoura is represented in Morocco by two species, Baeoura ebenina Starý, 1981, and Baeoura staryi sp. n. The new species is described and illustrated, and a key to the West Palaearctic species of Baeoura is presented.
Diptera , Limoniidae , Baeoura , new species, Morocco
The genus Baeoura Alexander, 1924 belongs to the subfamily Chioneinae. It originally was erected by Alexander (1924) as a subgenus of Erioptera Meigen, 1803, with the type species Erioptera nigrolatera described by Alexander, 1920. It later was transferred to the genus Cryptolabis Osten-Sacken, 1859 (
Worldwide, 70 species of the genus Baeoura have been reported, including 43 in the Oriental Region, ten in the Afrotropical Region, four in Australia, four in the East Palaearctic, eight in the West Palaearctic, and a single species in Chile (
The specimens were collected using an entomological hand net. Genital preparations were made by macerating the apical portion of the abdomen in cold 10% KOH for 12–15 h. After examination, the genitalia were transferred to fresh glycerin and stored in a microvial. The holotype (male in alcohol) is deposited in the collections of the laboratory at Ecology, Biodiversity and Environment, Faculty of Science, University Abdelmalek Essaâdi, Tétouan, Morocco. A paratype male (dry) is deposited in the collection of J. Starý, Olomouc, Czech Republic.
Terminology of morphological features generally follows that of
1 | Body yellowish brown to brown | 2 |
– | Body brownish black to black | 6 |
2 | Tergite 9 narrowed distally, posterior margin with comparatively narrow median emargination and short truncate lobe on each side; ventral and dorsal lobes of gonocoxite well developed, ventral lobe longer than body of gonocoxite (Fig. |
3 |
– | Tergite 9 relatively broad, posterior margin with broad median emargination and projecting corner on each side; ventral lobe of gonocoxite shorter than body of gonocoxite, dorsal lobe indistinct | 5 |
3 | Gonostylus curved, with broad spatulate apex bearing small sharp tooth, directed backwards; for male and female terminalia, see |
B. malickyi Mendl & Tjeder |
– | Gonostylus more or less S-shaped, pointed at apex | 4 |
4 | Sc1 ending beyond fork of Rs; gonostylus slender, gradually narrowed to pointed apex; for male terminalia, see |
B. szadziewskii Krzemiński & Starý |
– | Sc1 ending just before fork of Rs; gonostylus long, slender, with bulge-shaped extension at about mid-length provided with group of setulae on outer surface, tapered to slender distal half, strongly bent posteriorly, and almost filiform before pointed apex (Fig. |
B. staryi sp. n. |
5. | Gonostylus narrowed just before tip, obtuse at apex; aedeagus dilated in proximal half, spindle-shaped in dorsal aspect, produced into long filament; for male and female terminalia, see |
B. alexanderi Mendl & Tjeder |
– | Gonostylus narrowed in distal third, beak-shaped, obtuse at apex; aedeagus simple, slender; for male and female terminalia, see |
B. schachti Mendl |
6. | Gonostylus with conspicuous, roughly triangular extension at outer base; aedeagus filiform; for male terminalia, see |
B. longefiligera Mendl |
– | Gonostylus and aedeagus of different shape | 7 |
7 | Sc1 ending beyond fork of Rs; proximal section of M3+4 (before m-cu) subequal in length to or longer than m-cu | 8 |
– | Sc1 ending before fork of Rs; proximal section of M3+4 (before m-cu) about half length of m-cu; for male and female terminalia, see |
B. ebenina Starý |
8 | Tergite 9 with short, broad lobe on each side of its posterior margin; for male and female terminalia, see |
B. directa (Kuntze) |
– | Tergite 9 with slender projection on each side of its posterior margin; for male and female terminalia, see |
B. armata Mendl |
Rif Mts, Chefchaouen Province, Mezine village: 1♂, 2♀♀, Tributary Oued Tazarine, 35°05.670'N/5°21.991'W, 731 m, 11.vi.2013, middle course of the river; 1♂, 1♀, Daya near Aïn Afersiw, 35°06.069'N/5°20.337'W, 716 m, 11.vi.2013, pond. O. Driauach and B. Belqat leg.
Baeoura ebenina was previously known only from Spain and Portugal (
According to
Body dark brown, patterned with yellow. Tergite 9 narrow distally, with median emargination and short truncate lobe on each side. Gonocoxite with two lobes; dorsal lobe rather short and broad; ventral lobe long and slender. Single gonostylus long, slender, with bulge-shaped extension at about mid-length provided with group of setulae, and filiform before pointed apex.
Male: Body dark brown, patterned with yellow. Body length 3.5–3.8 mm, wing length 4.5–4.7 mm.
Head: Dark greyish brown; rostrum obscurely yellow; palpus yellowish brown, with terminal palpomere elongate. Antenna dark brown, with 15 articles, bent backwards, reaching to about anterior margin of thorax. Scape cylindrical; pedicel large, ovoid, much broader than scape. First flagellomere rather long-ovoid, smaller than scape but distinctly larger than other flagellomeres, these diminishing toward apex of antenna. Verticils on flagellomeres sparse and short, not reaching length of respective flagellomere.
Thorax: Pronotum brown dorsally, yellow laterally. Mesonotum dark brown with broad, pale yellow stripe on each side close above wing, from pronotum to scutellum. Scutum with distinct yellow marking near base of wing. Scutellum light yellow, light brown only medially on extreme anterior margin. Pleuron generally greyish brown, light yellow on dorsopleural membrane (part of lateral stripe).
Legs: Anterior coxa brown, middle coxa pale brown, hind coxa yellow. Trochanters yellowish brown. Femora yellowish brown, with darker distal half and blackish brown at distinctly enlarged apex. Tibiae yellowish brown. Tarsi dark brown. Tibiae longer than femora. Legs rather densely and darkly haired.
Wing (Fig.
Abdomen: Dark brown dorsally and ventrally, paler laterally.
Male terminalia (Figs
Female: Unknown.
Holotype. Male in alcohol, from Morocco, Rif Mts, Chefchaouen Province, Jnane Niche village, toward Jebha, Oued Jnane Niche, 35°17.040'N / 4°51.479'W, 46 m above sea level, 19.iv.2013, O. Driauach and B. Belqat leg.
Paratype. Dry, one male, same locality as holotype, 14.vi.2013, O. Driauach and B. Belqat leg.
This species is named in honor of Dr. Jaroslav Starý (Olomouc, Czech Republic), with our thanks for his help in the identifications of the Moroccan Limoniidae.
Baeoura staryi sp. n. is distinctive in having the ventral lobe of the gonocoxite long and slender, the longest among the West Palaearctic species. In the shape of tergite 9, the new species resembles B. malickyi Mendl & Tjeder, 1976, and B. szadziewskii Krzemiński & Starý, 1984, but differs from these species especially by the peculiar shape of the gonostylus.
Morocco. The species was collected from vegetation by a river on dry, stony ground with small streams, at an altitude of 46 m (Fig.
We are grateful to Dr. Jaroslav Starý (Olomouc) who identified this species as new and for his generous assistance in preparation of the manuscript. Our sincere thanks go to Dr. Pjotr Oosterbroek (Amsterdam) for his values help during the study and Dr. Ximo Mangual (Bonn) for the information he kindly provided. We warmly thank Dr. P. H. Adler (Clemson University) for the comments and corrections he made in the manuscript.