Ochralea nigripes (Olivier, 1808)

Hazmi, Izfa Riza & Wagner, Thomas, 2010, Revalidation and revision of Ochralea Clark, 1865 (Coleoptera: Chrysomelidae: Galerucinae) from the Oriental Region, Zootaxa 2530, pp. 47-59 : 53-54

Ochralea nigripes (Olivier, 1808)

Figs 2–11

= Galeruca nigripes Olivier, 1808: 648

= Ochralea nigricornis Clark, 1865: 144 ( Weise 1924) = Ochralea pectoralis Harold, 1880: 149 : syn. nov. = Monolepta erythromelas Weise, 1922 : syn. nov.

Total length: 7.75–13.50 mm (mean: 11.19 mm, n = 30)

Head, thorax, abdomen: Characters concerning shape, coloration, and punctuation for this species are almost identical to those described for the genus. There are only minor differences in measurements of external characters: length ratio of second to third antennomere, 0.67–0.86 (mean: 0.76); length ratio of third to fourth antennomere, 0.37–0.47 (mean: 0.42; Fig. 7, 8 ). Pronotal width 2.80–3.85 mm (mean: 3.44 mm), length to width ratio 0.62–0.73 (mean: 0.68). Elytral length: 6.00– 10.35 mm (mean: 7.98 mm), maximal width of both elytra together, 4.70–6.80 mm (mean: 5.42 mm), ratio of maximal width of both elytra together to length of elytra 0.62–0.80 (mean: 0.67; fig. 7). Figs 7–11 , strongly reduce size of the figs, in particular Fig. 8 , optimal size (comparability) when all figure numbers are in the same size.

Male genitalia: Median lobe moderately curved, tectum almost reaching the apex of the median lobe and covering the endophalllus. Endophallic sac clearly visible, with three pairs of spiculae (fig. 9).

Female genitalia: Spermatheca with a strongly sclerotized, spherical nodulus, with a long and strongly curved cornu terminating in a cap-like structure (fig. 10). Two pairs of strongly sclerotized bursal sclerites, with sclerotized spines (fig. 11).

Diagnosis: Ochralea nigripes shows considerable colour variation (fig. 7), but only specimens with a pale yellowish dorsum and femora, and black tibiae and tarsi (fig. 7b) can be confused with O. wangkliana . The latter species is larger than O. nigripes , with on average a narrower pronotum, and elytra that are on average slightly broader. However, since the morphometric data for the few known specimens of O. wangkliana fall within the range of O. nigripes , only examination of the genitalia in both sexes will reveal a reliable species diagnosis. For details see diagnosis of O. wangkliana .

Distribution: This species is widely distributed in many east Asian countries, such as Malaysia, Indonesia, Philippines, Cambodia, Burma, Myanmar, Thailand, Brunei, Laos, Vietnam, Singapore, northwards to Southern China, westwards to Bangladesh, eastwards to Sulawesi and as far as the Wallace-line ( Fig. 6 ).

Type material examined: Galeruca nigripes : Type material should be in MNHN (Horn et al. 1990), but is not available to us. We adapt Weise’s (1924) statement that this species is synonym with O. nigricornis , which type material is available.

Ochralea nigricornis : Holotype, Ƥ “Penang / Ochralea nigricornis Clark Type / Ochralea nigricornis Clark / 67.56” ( BMNH); Type locality: Malaysia, 5°20'N / 100°29'E. Clark mentioned more than one specimen in his original description “In my own cabinet and that of Mr. Baly”, but there is only one specimen with collection data of the original description available in BMNH, including the word “ type ” in Baly’s handwriting on the identification label, which is a holotype by indication.

Monolepta erythromelas: Replacement name for Ochralea pectoralis Harold, 1880 (transferred to Monolepta by Weise 1922) not Monolepta pectoralis Bohemann, 1959 .

Ochralea pectoralis : Holotype, “Tamiang VI, Ochralea pectoralis Har. ” (MNHU); Type locality: Indonesia, Sumatra, 2°28'S / 103°54'E. Harold gave no number of specimens in this original description, but there is no indication of more than one, and the only available specimen in MNHU can be treated as holotype.

Weise (1922) also cited Monolepta concolor Boheman, 1859 as synonym, but he has most likely never seen the type specimen from NHRS. This is a small beetle of about 5 mm total length and does neither belong to Ochralea nor to Monolepta .

Other material examined. Bangladesh: 3 ex., Bengal, Buxar Duars, D. Nowrojee, V.1907, 25.34°N / 84.01°E ( BMNH); 1 ex., Assam Valley, Doherty, Fry Coll. 1905.100, 26°30'N / 92°45'E ( BMNH). – Brunei: 5 ex., Brunei, Kuala Belalong FSC, dipterocarp forest, 1991–173, VI.1991, N. Mawdsley, 4°34'N / 115°7'E ( BMNH). – Burma: 2 ex., Burmah, 8525, 1°50'S / 120°31'E ( BMNH); 2 ex., Burmah, Karen Mts., Doherty, Fry Coll. 1905.100, 1°50'S / 120°31'E ( BMNH); 1 ex., Celebes, IX.1923, C. J. Brooks Coll., 1°50'S / 120°31'E ( BMNH); 1 ex., Burmah, Andrewes Bequest, B. M. 1922–221, 1°50'S / 120°31'E ( BMNH); 1 ex., Burmah ( BMNH); 4 ex., Tenasserim, Javoy, Doherty, Fry Coll., 1905.100, 1°50'S / 120°31'E ( BMNH); 1 ex., Tenasserim, Thagala, IV.1887, Fea ( BMNH); 1 ex., Toungoo, Andrewes Bequest, B. M. 1922–221, 1°50'S / 120°31'E ( BMNH); 1 ex., Tenasserim, Thagala, Fea, IV.1887, 81662, 12°4'N / 99°1'E ( MNHU). – Cambodia: 27 ex., Cambodia (Siem Reap), Kbal spean, 28.V.2005, day catch, I. Var & P. Grootaert, 13°22'N / 103°50'E (16 ex. BMNH, 11 ex. IRSN). – India: 7 ex., E. India 21°N/98°E ( BMNH); 15 ex., Gopaldhara, Rungbong Vall., Sikkim, H. Stevens 1916–218, 27.33°N / 88.62°E ( BMNH). – Indonesia: 8 ex., Sulawesi Utara, Dumoga-Bone N. P., II.–III., IX.1985, Project Wallace, at light, 1°50'S / 120°31'E ( BMNH); 9 ex., Java, Depok, G. E. Bryant, IV. 1909, G. Bryant Coll. 1919–147, 6°23'S / 106°49'E ( BMNH); 8 ex., Celebes, Sharp Coll. 1905–313, 1°50'S / 120°31'E ( BMNH); 2 ex., Java, Buitenzorg, C. W. Andrews 98–20, 6°35'S / 106°47'E ( BMNH); 1 ex., E. Coast Sumatra, Doerian Moelan, Briendjei. Lt. R. Coughtrie, 1915–184, 0°35'S / 101°18'E ( BMNH); 2 ex., Java, Wallace, 7°36'S / 110°42'E ( BMNH); 4 ex., Sumatra, Merang, Doherty, Fry Coll. 1905– 100, 0°45'N / 98°49'E ( BMNH); 5 ex., Sumatra, Lambang, Buxton, Fry Coll. 1905–100, 0°45'N / 98°49'E ( BMNH); 1 ex., Sulawesi Tengah, nr. Morowali, Ranu river area, I.–IV.1980, S. L. Sutton, C. J. Rees, B. M. 1980–281, 1°S/121°E ( BMNH); 1 ex., Java, 7°30'S / 111°15'E ( BMNH); 3 ex., SUMAT, Jacoby Coll., 1909– 28 °, 0°N/102°E ( BMNH); 1 ex., Java, Bulterong, S. 1924, 7°30'S / 111°15'E ( IRSN); 1 ex., Celebes, IX.1923, C. J. Brooks Coll., 1°50'S / 120°31'E ( BMNH); 1 ex., K. V. H. Java, 7°36'S / 110°42'E ( NNML); 7 ex., Java, Occident, Sukabumi, 2000 1893, H. Fruhstorfer, 7°36'S / 110°42'E ( NNML); 2 ex., Java, Orient, Montes Tengger, 4000 1890, H. Fruhstorfer, 7°36'S / 110°42'E ( NNML); 8 ex., Borneo Exped. Dr. Nieuwenhuis, Mahakkam 1894, 1°6'S / 114°8'E ( NNML); 2 ex., Borneo, Setput 1903, N. E. Puper, 1°6'S / 114°8'E ( NNML); 4 ex., Dr. B. Hagen. Tandjong Morawa, Serdang, (N.O.Sumatra), 0°35'S /101°E ( NNML); 3 ex., N. E. Sumatra, Deli, Kuala Simpang, A. Collart, 0°35'S / 101°18'E ( NNML); 5 ex., Java, Depok, ex collection J. J. de Voes Tot, Nederveen capel, 6°23'S / 106°48'E ( NNML); 1 ex., Sulawesi, Dumoga bone NP; edwards sucamp, at light, 664, 29.IV.1985, 1°50'S / 120°31'E ( NNML); 1 ex., Buitenzorg, 19.X.1928, J. V. D. Vecht, 6°35'S / 106°47'E ( NNML); 1 ex., P. Buitenzorg, Tandjong Riok, Feb. 0 9, 6°35'S / 106°47'E ( NNML); 7 ex., Samanga, S. Celebes, Nov. 1895, H. Fruhstoefer, 3°11'S / 120°26'E ( NNML); 2 ex., Nierst, Depok, 1899, 6°23'S / 106°48'E ( NNML); 2 ex., Buitang, Java, ex collection, J. J da Voes Tot, Nederveen capel, 7°36'S / 110°42'E ( NNML); 7 ex., Sumatra, Manna, M. Knappert, 0°45'N / 98°49'E ( NNML); 13 ex., Nierstratsz, Depok 1899, 6°23'S / 106°48'E ( NNML); 1 ex., Krawang, Java, L. D.V., 6°18'S / 107°17'E ( NNML); 1 ex., W. Celebes, Paloe, Dec. 1936, Dr. J. V. D. Vecht, 2°12'S / 119°56'E ( NNML); 9 ex., Depok, W. Java, V.–VII.1932, W. C. V. Heurn, 6°23'S / 106°48'E ( NNML); 2 ex., Depok, Java, 3.VIII.1931, Fr. A. Th. H. Verbeek, 6°23'S / 106°48'E ( NNML); 20 ex., W. Java, Buitenzorg, VI.–VIII.1931, W. C. Hauern, 6°35'S / 106°47'E ( NNML); 1 ex., Sumatra, Deyr, 40824, 0°35'S / 101°18'E ( MNHU); 1 ex., Java, Dr. Will, 7°36'S / 110°42'E ( MNHU); 2 ex., Borneo, 1°6'S / 114°8'E ( MNHU); 10 ex., Java, Buitenzorg, Kemner, 6°35'S / 106°47'E ( NHRS). – Laos: 1 ex., Laos, Vien, V. 1915, R. Vitalis de Salvaza 17°58'N / 102°36'E ( BMNH); 1 ex., Laos, Xien Khou, III.1915, R. Vitalis de Salvaza 17°58'N / 102°36'E ( BMNH). – Malaysia: 8 ex., Sarawak. Foot of Mt. Dulit, Junction of rivers, Tinjar & Lejok, IX.–X.1932, secondary forest 2°33'N /113°E ( BMNH); 25 ex., W. Sarawak, Quop, G. E. Bryant, II.–IV.1914, G. Bryant Coll. 1919-147 2°33'N /113°E ( BMNH); 4 ex., Sarawak, Ulu Akar, P. de F. Coll, XI.1914 2 °33'N/113°E ( BMNH); 6 ex., Sarawak, Long Sup, Baram River, X.1920, J. C. Moulton 1°21'N / 111°31'E ( BMNH); 2 ex., Malay Peninsular, Kuala Terengganu, VI.1926, Mr. C. B. Klosi Coll. F.M.S Museum, 5°20'N / 103°9'E ( BMNH); 4 ex., S. E. Borneo, Pengaron, 1904–150, 1°6'S / 114°8'E ( BMNH); 70 ex., N. Borneo, Kudat, IX.1927, C. B. K. & H. M. P., F. M. S. Museum, 6°53'N / 116°50'E ( BMNH); 1 ex., Pulo Penang, Lower Siam, IV.1911, 5 °20'N/ 100°29'E ( BMNH); 6 ex., Borneo, Baly Coll., 1°6'S / 114°8'E ( BMNH); 6 ex., Penang, Bowring 63.47, 5°20'N / 100°29'E ( BMNH); 1 ex., Malacca, Baly Coll., 2°12'N / 102°15'E ( BMNH); 2 ex., Malay, Castelu, Fry Coll. 1905–100, 3°8'N / 101°42'E ( BMNH); 2 ex., W. Sarawak, Mt. Matang, G. E. Bryant, XII.1913, 1.55°N / 110.35°E ( BMNH); 3 ex., Sarawak, Baram River, Long Akar, X.1920, J. C. Moulton 1°21'N / 111°31'E ( BMNH); 1 ex., Sarawak, Baram River, Lio Matu, X.1920, J. C. Moulton 1°21'N / 111°31'E ( BMNH); 2 ex., Sarawak, Baram, IX.1920, J. C. Moulton 1°21'N / 111°31'E ( BMNH); 1 ex., Sarawak, Borneo, Trusan, 1915, H. W. Smith, 6°26'N / 117°41'E ( BMNH); 3 ex., Pulau Tioman. S. China Sea, B/T Sedugong 1000, V.1927, N. Smedly 2°49'N / 104°11'E ( BMNH); 7 ex., Pulau Aor, S. China Sea, IV.–V.1927, N. Smeldy, 2°26'N / 104°31'E ( BMNH); 2 ex., Pulo Tioman, VII.1915, V. K. Coll. ( BMNH); 6 ex., Malay Penin., Kuala Terengganu, VI.1926, Mr. C. B. Klasss, Coll. F.M.S. Museum, 5°20'N / 103°9'E ( BMNH); 1 ex., Malaya, Perlis, Bukit Jermeh, III.1936, H. M. Pendlebury, F.M.S. Museum, 6°30'N / 100°15'E ( BMNH); 1 ex., Malaya, Perlis, Arau, III.1936, H. M. Pendlebury, F.M.S. Museum, 6°26'N / 100°16'E ( BMNH); 3 ex., West Sarawak, Lundu, I.1914, G. E. Bryant, 1°40'N / 109°51'E ( BMNH); 11 ex., Sarawak, C. J. Brooks, B.M. 1928–193, 2°30'N / 113°15'E ( BMNH); 1 ex., Sarawak, 1907–1909, C. J. Brooks, B.M. 1936–681, 2°30'N / 113°15'E ( BMNH); 1 ex., Sarawak, Shelford, 1900–117, 2°30'N / 113°15'E ( BMNH); 1 ex., Sarawak, Lundu, IV.1913, 1 °40'N/ 109°51'E ( BMNH); 1 ex., Sarawak, Semenggok Forest, VI.1968, Vincent H., 2°30'N / 113°15'E ( BMNH); 13 ex., Fed. Malay States, 1909, C. J. Brooks, B.M. 1931-570, 3°8'N / 101°42'E ( BMNH); 1 ex., W. Sarawak, Puak, V.1914, G. E. Bryant, G. E. Bryant Coll. 1919-147, 2°30'N / 113°15'E ( BMNH); 1 ex., N. W. Borneo, 95–226, 1°N/114°E ( BMNH); 1 ex., Malay Penin, Kedah, Alor Setar, Gunung Keriang, IV.1928, H.M. Pendlebury, Coll. F. M. S. Museum, 6°7'N / 100°22'E ( BMNH); 1 ex., Sandakan, Atkinson Coll., 92–3, 5°50'N / 118°7'E ( BMNH); 2 ex., Malacca, Whitehead, Fry Coll. 1905–100, 2°12'N / 102°15'E ( BMNH); 6 ex., Borneo, Pengaron, Doherty, Fry Coll.1905-100, 1°N/114°E ( BMNH); 2 ex., Borneo, German Mission, Fry Coll. 1905–100, 1°N/114°E ( BMNH); 2 ex., Borneo N, Whitehead, Fry Coll. 1905-100, 1°N/114°E ( BMNH); 8 ex., Perak, Doherty, Fry Coll. 1905–100, 4°45'N /101°E ( BMNH); 1 ex., Malaysia, P. S. A Is. Siantan, IX.1925, Ex. F. M. S. Museum, B.M. 1955-354, 3°8'N / 101°42'E ( BMNH); 2 ex., Malay Penin, Selangor, Bukit Kutu, IX.1932, H. M. Pendlebury, 3.35°N / 101.25°E ( BMNH); 1 ex., Perak, F. M. S. Batang Padang, I.1925, H. M. Pendlebury, 5.33°N / 101.33°E ( BMNH); 1 ex., Gombak Forest, VIII.1968, 3.25°N / 101.25°E ( BMNH); 1 ex., West Borneo, Putus Sibau am obereh Kapuas, Eing. Nr. 6 1926, 0°N/ 110°30'E ( IRSN); 1 ex., Borneo, Melawifloss b. Nanga Kruab, 9.XI.1924, 1°N/114°E ( IRSN); 1 ex., Dindings, 96–85 ( BMNH); 11 ex., SAR, Baly Coll., 4°11'N / 100°39'E ( BMNH); 10 ex., Malaysia, Johor, Endau Rompin, VI.2007, B. H. Izfa, 2°N/ 103.5°E ( UKM); 1 ex., Kedah, Langkawi, Kg. Kok, IV.1993, Ismail, Sham, Yusof 6°21'N / 99°48'E ( UKM); 1 ex., Kedah, Langkawi, I.1989, Ismail 6°21'N / 99°48'E ( UKM); 1 ex., Kedah, Baling, H. L. Bukit Weng, VI.1994, Ismail, Ruslan, Yusof, 5.67°N / 120°31'E ( UKM); 1 ex., Kedah, Langkawi, Kampong Kilim, II.1994, Ismail, Zabidi & Ruslan 6°21'N / 99°48'E ( UKM); 1 ex., Pahang, Kuala Lompat, IV.–V.1986, Pelajar Thn., 3.43°N / 102.4°E ( UKM); 2 ex., Pahang, Pulau Tioman, IX.1999, Ismail & Sham 2°49'N / 104°11'E ( UKM); 1 ex., Pahang, Pulau Tioman, Paya, IV.1993, Zabidi, Sham & Razali 2°49'N / 104°11'E ( UKM); 9 ex., Malaysia, Sarawak, Spaoh, I.2008, B. H. Izfa, 1.46°N / 111.47°E ( UKM); 1 ex., Terengganu, Setiu, H. Lipur Peladang, V.1994, Ismail & Zabidi, 5°N/103°E ( UKM); 1 ex., Pahang, Ekspedisi Rompin-Endau, V.1989, Ismail & Nor 3.53°N / 103.47°E ( UKM); 1 ex., Selangor, Kuala Kubu Bharu, Pertak, IV.1997, Ismail & Ruslan 3.57°N / 101.65°E ( UKM); 1 ex., N. Sembilan, Beranang- Lenggeng Jeram Kedah, V.1993, Sham, Ismail, Yusuf 2°52'N /1010°56'E ( UKM); 1 ex., Pahang, Jerantut, Hutan Lipur Sg Salam, VIII.1996, Ismail & Muzammil 3°56'N / 102°22'E ( UKM); 1 ex., Pahang, Kuala Lompat, III.1998, Salleh et al. 3.43°N / 102.4°E ( UKM); 1 ex., Johor, Mersing, 2.II.1980, Arishah 2°26'N / 103°50'E ( UKM); 10 ex., Kedah, Baling, Lata Bayu, 15.VI.1994, Ismail, Ruslan & Yusuf 5°40'N / 100°55'E ( UKM); 10 ex., Bukit Weng, 16.VI.1994, Ismail, Ruslan & Yusuf 5.67°N / 100.92°E ( UKM); 8 ex., Langkawi, 10.–14.I.1989, Ismail 6°21'N / 99°48'E ( UKM); 1 ex., Kuala Nerang, Gunung Janing, 16.VI.1994, Ismail, Ruslan & Yusuf 6°15'N / 100°36'E ( UKM); 12 ex., Langkawi, Kg. Kilim, 5.II.1994, Ismail, Sham & Yusuf 6°21'N / 99°48'E ( UKM); 1 ex., Kinabalu, Borneo, 828,6°4'N/ 116°33'E ( MNHU); 1 ex., Balabak, Borneo, 7°N/ 117°1'E ( MNHU); 6 ex., Malakka, Perak, 2°12'N / 102°15'E, ( MNHU). – Philippines: 5 ex., Philippine Is., E. M. Ledyard, B. M. 1925– 491, 13°N/122°E ( BMNH); 1 ex., Philippine Is., Mindanao, Bugo, Misamis Or. B. M. 1937–107 7°51'N / 124°51'E ( BMNH); 1 ex., Manila, E. Coll., 14°36'N / 120°58'E ( BMNH); 2 ex., Phil. Is, E. Coll. Thomson 13°N/122°E ( BMNH); 1 ex., Phillip. Island, Fry Coll. 1905–100 13°N/122°E ( BMNH); 1 ex., Luzon, Sharp Coll. 1905.313, 16°33'N / 121°15'E ( BMNH); 29 ex., Luzon, J. Roseler, 29.IX.1908, 16°33'N / 121°15'E ( MNHU); 2 ex., Phillipines, Palawan Island, Olanguan River, 50–400 m, 30.V.1991, R. A. Muller leg et. Coll, 11°14'N / 119°27'E ( NNML). – Singapore: 1 ex., Singapore 1°21'N / 103°49'E ( BMNH). – Thailand: 1 ex., Siam 15°53'N / 101°4'E ( BMNH); 1 ex., Lower Siam, Pulo Butang, IV.1911, R. H. Coll., 5°18'N / 100°11'E ( BMNH); 1 ex., Siam, Setul, H. N. Bidley, 1910–264 15°53'S / 101°4'E ( BMNH); 1 ex., Siam, Bowring 63.47 15°53'N / 101°4'E ( BMNH); 1 ex., Siam, Coll. Nonfried 15°53'N / 101°4'E ( IRSN); 3 ex., Bankau Siam, III.1921, R. van Veon, 15°53'N / 101°4'E ( NNML); 5ex., Thailand, Loei, Na-Hao, field res stat, 15.–18.V.2003, banana trap, J. Constant & K. Smets, 17°25'N / 101°36'E ( IRSN). Vietnam: 1 ex., Tonkin, Chana, 1916, R. Vitalis de Salvaza, 19°16'N / 105°19'E ( BMNH); 1 ex., Tonkin, Hoabinh, A. de Cooman, B. M. 1940–13, 19°16'N / 105°19'E ( BMNH); 7 ex., Riviere Claire, Haut Tonkin, Madon, R. Mus. Hist. Nat. Belg. I. G. 12.595, 19°16'N / 107°19'E ( IRSN); 9 ex., Tonkin, Than-Moi, Juni-Juli, H. Fruhsdorfer, 19°16'N / 107°19'E ( MNHU).

Figures

FIGURE 6: Distribution of Ochralea nigripes (Olivier, 1808).

FIGURES 2 – 3: Ochralea nigripes (Olivier, 1808), 2: Ventral view: a: head, b: prothorax, c: meso-and metathorax. Scale bar: 1 mm; 3: Ventral view of abdomen: a: female, b: male.

FIGURES 4 – 5: Ochralea nigripes (Olivier, 1808), dorsal view of right hind-wing; 5: Ventral view of left legs: a. prothoracic, b. mesothoracic, c. metathoracic. Scale bar: 1 mm.

FIGURES 7 – 11: Ochralea nigripes (Olivier, 1808). 7: Habitus, dorsal colour patterns (white: yellow; grey: red; black: black) Scale bar: 1 mm; 8: Basal antennomeres, a. two different females; b. two different males; 9: Median lobe, endophallus inverted: a. dorsal, b. lateral; c. ventral (without endophallic spiculae); 10. Spermathecae of three different females showing variation; 11: Bursal sclerites, view from inner side: a. ventral, b. dorsal. Scale bar: 1 mm.