Omophron (Phrator) alluaudi Dupuis, 1913:

Valainis, Uldis, 2011, Revision of the Omophron (Phrator) ‘ vittulatum’ species group (Coleoptera: Carabidae), Baltic Journal of Coleopterology 11 (2), pp. 117-126 : 119-120

Omophron (Phrator) alluaudi Dupuis, 1913:

213 stat. nov.

Description. Body length 8.12 – 9.01 mm; width 5.24 – 5.38 mm (holotype 8.14 mm and 5.28 mm, respectively). Habitus ( Fig. 1).

Colour: Head, pronotum, elytra, legs, and antennae yellowish brown. Patches of pronotum and elytral patterns brown. Mandibles yellowish brown, their apical part dark brown, almost black. Ventral side excluding epipleura yellowish brown; epipleural sides of elytra, pronotum, and prosternum lighter.

Head fairly flat, coarsely punctured laterally and posteriorly, sparsely punctured around clypeus and on the middle of frons. In the middle of head punctures smaller and more shallow. With one supraorbital setiferous puncture on each side of head near the eye. Subocular ridge well developed, curved upwards and slightly rounded. Clypeus wrinkled, bisetose. Labrum distinctly emarginated, with jagged sides and six setae near the front margin. Anterior angles of labrum acute, expressly curved upwards. First segment of antennae unisetose at apex, 5 – 11 segments covered with thin setae, 1 – 4 segments bare, only with some longer setae near apex, HW: 2.64 – 2.72 mm.

Pronotum moderately convex, base bisinuated on each side, sides slightly rounded, with edge expanding toward the anterior margin. Anterior angles nearly acute. Apex and base of pronotum coarsely punctured, disc finely punctured. Median impression well developed. The front part of proepisternum smooth, posterior part with coarse puncture, strongly inclined towards the mesepisternum. Prosternum with gentle and irregular puncture. PL: 2.32 – 2.39 mm, PW: 4.02 – 4.15 mm.

Elytra moderately convex, oval. Elytra with 15 full striae. 1 – 5 interstriae flat on the base, striae composed of large punctures only. 6 – 13 interstriae convex, striae deep. At the apical two thirds of elytra 3 rd stria joining 4 th and 7 th joining 8 th, 1 stria remains evanescent in the middle of elytra. 12 th stria joining 13 th on the base of elytron. Metasternum and metepimeron gently punctured. Sides of sterna slightly wrinkled. EL: 5.35 – 5.51 mm, EW: 5.24 – 5.38 mm.

Comments. Until now O. (P.) alluaudi was considered to be a synonym of O. (P.) vittulatum , however, when comparing the holotypes of both taxa, sufficient morphological differences have been observed to regard them as two valid species. In comparison with O. (P.) vittulatum , O. (P.) alluaudi is larger, its dark elytral pattern clearly bordered, and the impression on base of pronotum more pronounced. Sides of pronotum in the case of O. (P.) alluaudi are moderately rounded, but in the case of O. (P.) vittulatum are almost straight.

There are no specific differences observed among the species of genus Omophron (Phrator) in the structure of aedeagus.

Distribution. Western to Central Tropical Africa. Distribution map ( Fig. 5 ).

Material examined. Bimu (2 female, 1 male, Glauning leg.); Angola: Lunda Norte Province, Dundo , 08.-09.1948 (1 male, de Baross Machado leg.) ( MRAC) ; Lunda Norte Province, Riv. Tshlkapa , 50 km S. O. de Dundo, 07.1948 (1 male, 1 female, de Baross Machado leg.) ( MRAC) ; Cameroon: Edea, Bsse-Sanaga, Vadon ! (1 female, 1 male) ( MNHN) ; Edea (1, Le Moult leg.) ( ETHZ) ; Edea, ( Base Senegal ) (1 female, Vadon leg.) ( MNHN) , Younde (1 male) ( MRAC) ; Benue b. Lau , 17.04.1905 (1 female, Glauning leg.) ; Benue (2 female, 1 male, Glauning leg.) ( ZMHB) ; Central African Republic: Kemoperfecture, Sibut , (1, Le Moult leg.) ( ETHZ) ; Democratic Republic of Congo: Congo: (1) ( ETHZ) ; Congo (1 female) ( MNHN) ; Kasai, Kondue (1 female, Luja leg.) (holotype) ( ISNB) ; “ Bata ”, 05.1924 (1 female, Donchrind) ( ETHZ) ; “ Lambarinia ”, 1924 (2 males, Haug) ( ETHZ) ; “ Lambarinia ”, 1896 (2 females, 1 male, Haug leg.) ( MNHN) ; Kasai, Djokopunda , 10.08.1921 (1 female, Schouteden leg.) ( ETHZ) ; Kasai, Djokopunda , 10.08.1921 (18 males, 20 females, Schouteden leg.) ( MRAC) ; Kasai, Ilebo , 14- 15.07.1925 (1 male, Prince Leopold leg.) ( MRAC) ; Kasai-Occidental Province, Bena Makima , 08.08.1921 (3 males, 3 females, Ghesquiere leg.) ( MRAC) ; Sud-Ubangi Province, Libenge , 04.01.1948 (25 males, 18 females, Cremer & Neuman leg.) ; 06.01.1948 (5 males, 8 females, Cremer & Neuman leg.) ; Sud-Ubangi Province, Libenge, Mawuya , 06.01.1948 (1 male, Cremer & Neuman leg.) ( ISNB) ; Sud-Ubangi Province, Libenge, Ubangi river , 04.01.1948 (29 males, 33 females, Cremer & Neuman leg.) ( ISNB) ; Sud-Ubangi Province, Libenge, Zambi , 06.01.1948 (2 males, 23 females, Cremer & Neuman leg.) ( ISNB) ; Sud-Ubangi Province, Libenge, Zambi , 06.01.1948 (7 males, 9 females, Cremer & Neuman leg.) ( MRAC) ; Mai-Ndombe Province, Inongo, Lake Mai-Ndombe , 11.- 24.06.1925 (1 male, Prince Leopold leg.) ( ISNB) ; Sankuru Province, Sankuru river , 09.1924 (19 males, 23 females, Ghesquiere leg.) ( MRAC) ; Orientale Province, Kungulu ; 06.1923 (1 male, 2 females, Ghesquiere leg.) ( MRAC) ; Lomami river , 08.1924 (1 female, Ghesquiere leg.) ( MRAC) ; De Kwamoutha, Port Irangui , 05.1930 (1 male, 1 female, Vanderyst leg.) ( MRAC) ; Basongo , 10.09.1930 (1 male, De Vitte leg.) ( MRAC) ; Basongo, River Kasai, 06.1929 (1 male, 1 female, Overlaet leg.) ( MRAC) ; Basongo , 10.09.1930 (1 female, Witte leg.) ( MNHN) ; “ Env. Lac Leipold II”, 11.- 24.06.1925 (1 female, Prince Leopold leg.) ; Haut-Zaire, Bambesa, Alipago , 02.1935 (9 males, 4 females, Leroy leg.) ( MRAC) ; Haut-Zaire, Equater, Bokuma , 1938 (1 male, Hulstaert leg.) ( MRAC) ; Equater, Bokuma , 07.1952 (1 male, Lootens leg.) ( MRAC) ; 1953 (2 males, 2 females, Lootens leg.); Tshuapa, Bokuma , 1953 (2 males, Lootens leg.) ; 03.1954 (2 males, 2 females, Lootens leg.) ( MRAC) ; Kimpangu river, Fulezi , 850 m, 06.07.1949 (6 males, 3 females, Leleup leg.) ( MRAC) ; Lomami , 08.1924 (1 female, Ghesquiere leg.) ( MNHN) ; Dutch Zambezi (1 male) ( MNHN) ; Fort Archambault, Mission Chari-Tchad , 1904 (1 female, Decorse leg.) ( MNHN) ; Fort Archambault, Moyen Chari , Bongoul, Mission Chari-Tchad (Ba Kare) ( MNHN) , 04.1904 (2 male, Decorse leg.) ( MNHN) ; Fort Archambault, Baha Sara, Mission Chari-Tchad , 04.1904 (1 male, Decorse leg.) ( MNHN) ; Congo Belge, Rives du Congo, Mission du Bourg de Bozas , 1903 (1 female) ( MNHN) ; Gabon: Ogowe (1 male) ( MNHN) ; Ogooue, Lambarene , 1898 (5 females, 9 males, Haug leg.) ( MNHN) , Bas. Ogooue, Lambarene , 1901 (1 male, Haug leg.) ( MNHN) ; Ogooue, Lambarene , 1901 (1 female, 1 male, Haug leg.) ( MNHN) ; Congo, Libreville , 1899 (1 female, 3 male, Boucher leg.) ( MNHN) ; Mali: Macina, Dioura, OICMA , 20.09.1969 (1 female, Farrow leg.) ( BMNH) ; Macina, Tilembeya , Niger Bank, OICMA , 05.06.1969 (2 males, 1 female, Farrow leg.) ( BMNH) ; Kara, Flood plain, OICMA, 29.06.1969 (5 males, 6 females, Farrow leg.) ( BMNH) ; Nigeria: Adamawa State, Yola , Benue river, 12.-20.04.03 (1 male, Schultze leg.) ( ETHZ) ; Benue, 16.05.1903 (1 male) ( ZMHB) ; Tarbata State, Sardauna, Sunkuru , 09.1924 (1 male, Ghesquiere) ( ETHZ) ; Senegal: Clermont (1, Nodier leg.) ( ETHZ) ; Haut Senegal (1 female) Comp. Type Basilewsky ( MRAC) ; Haut Senegal (1 female) ( MRAC) ; Senegal (1 female) ( MNHN) .

References: Dupuis, 1913; Deleve, 1924; Alluaud, 1935

Figures

Fig. 5. Distribution map of Omophron (Phrator) alluaudi Dupuis, 1913