Revision of Monolepta Chevrolat, 1836 from the Sundaland area (Coleoptera: Chrysomelidae: Galerucinae) Hazmi, Izfa Riza Wagner, Thomas Bonn zoological Bulletin 2022 2022-09-28 71 2 139 176 Hazmi & Wagner 2022 [189,474,796,820] Insecta Chrysomelidae Monolepta GBIF,CoL Animalia Coleoptera 30 169 Arthropoda species mohamedsaidi sp. nov.    urn:lsid:zoobank.org:act: 24851E45-4856-4726-854B-71386D5F4794  Figs 54–56   Type material.  Holotype: ♂“ Sarawak, 4th. Division Gn. Mulu NP/ nr. Base Camp  50–100 m,  V.–VIII.1978, P. M. Hammond& J. E. Marshall, B. M.1978-49” ( BMNH; Fig. 54). Type locality: 3º55′ N/ 114º46′ E. –  Paratypes:  Brunei. 46 ex., Labi, Bukit Teraja  60 m, Mxt. Dipt. Forest, 4º18′ N/ 114º26′ E, 21.VIII.79, B.M.1983-39, Light trap1, 75 m above ground, S. L. Sutton( BMNH);  24 ex., Temburung DistrictRidge, NE of Kuala Belalong,  300 m, 4º37′ N/ 115º08′ E,  X.1992, 125W MV Light Trap, J. H. Martincoll. ( BMNH);  1 ex., Darussalam, UluTemburong NP, 4°32′ N/ 115°9′ E,  II.2015, P. Kočarek( CJB). –   Indonesia. 3 ex., N Sumatra, Bivouacone Mt Bandahara, 3º43′ N/ 97º41′ E, 25.VI.–5.VIII.1972, J. Krikken( RMNH);  1 ex., N-Sumatra, Hutapadang, 1°25′ N/ 99,28E, VIII.1991, Lichtfang, D. Erber( ZFMK). –   Malaysia. 1 ex., Penang, 5º24′ N/ 100º29′ E, Lam.93.60 ( BMNH);  3 ex., Mt. Matang, W. Sarawak, 1º34′ N/ 110º16′ E,  I.-II.1914, Bryantcoll. ( BMNH);  1 ex., W. Sarawak, Quop, 1°37′ N/ 110°24′ E,  IV.1914, G. E. Bryant( BMNH);  1 ex., Sarawak, foot of Mt. Dulit, Junctionof rivers Tinjar& Lejok, 3º20′ N/ 114º09′ E, 29.VIII.1932 ( BMNH);  1 ex., Malay Penin., Selangor, Bukit Kutu,  3500ft., 3º33′ N/ 101º43′ E,  11.IX.1929, H. M. Pendlebury( BMNH);  2 ex., Sabah, Tawau Plat.  1300 ft., 8 m S. Telupid, 5º35′ N/ 117º07′ E,  8.IX.1977, M. E. Bacchus( BMNH);  4 ex., Sarawak, Gunong Mulu Nat. Park, R. G. S. Exped.1977/78, 3º55′ N/ 114º46′ E, 24.VI.1978, J. D. Hollowayet al. ( BMNH);  24 ex., Sarawak, 4th. Division Gn. MuluNP, nr. Base Camp  50–100 m, 3º55′ N/ 114º46′ E, V.–VIII.1978, P. M. Hammond & J. E. Marshall( BMNH);  2 ex., Sabah, Sandakan, SepilokFR (obs tower),  50 m, 5º52′ N/ 117º56′ E,  1.XI.1987, Krikken& Rombaut( RMNH);  1 ex., Sabah, Interiorzone, road Keningau-Sepulut, km 39 Sg. Sook,  350 m, 5.02′ N/116.27′ E,  17.XI.1987, J. Huisman& R. de Jong( RMNH);  1 ex., Sabah, Westcoast zone, 12 km NNE of Ranau, Poringhot Springs, 6.04′ N/116.42′ E,  9.XI.1987, J. Huisman& R. de Jong( RMNH);  1 ex., Sabah, Keningau Area, Tenom, 4º59′ N/ 115º55′ E,  23.XI.1987, Krikken& Rombaut( RMNH);  1 ex., Malaysia, Fraser′s Hill, 3º42′ N/ 101º44′ E,  22.II.1991, RM Exped.( NHRS);  1 ex., Johor, Gunung Ledang, 2º22′ N/ 102º36′ E, 19-23.VI.1993, Yusof, Saiful, Meor( UKM);  1 ex., Pahang, Cameron Highlands, Tanah Rata, 4°28′ N/ 101°22′ E,  1400 m,  II.1997, Schuh& Lang( ZFMK);  1 ex., Pahang, Endau RompinNP, 2°31N/ 103°24′ E,  IV.2008, P. Čechovsky.   Etymology.Dedicated in honour to Mohammed Salleh Mohamed Said, taxonomist from Malaysia, who did a tremendous work on the South-East Asian Chrysomelidae.   Description  Total length.3.25–4.00 mm (mean 3.60 mm; n = 10).  Head.Very finely punctuated, varied from yellowish to blackish, labrum and mandible black. Antenna slender, short, extending almost to the middle of elytra, blackish and only three basal antennomeres yellow ( Figs 55b, 56A). Second antennomere shorter than third; ratio length of second to third antennomere 0.67–1.00 (mean 0.72); ratio length of third to fourth antennomere 0.50– 0.60 (mean 0.53; Fig. 56B).  Thorax.Pronotum finely punctuated, entirely yellow-brownish and shiny. Pronotal width 1.00– 1.25 mm(mean 1.12 mm), ratio length to width 0.58–0.62 (mean 0.60). Scutellum, meso- and metathorax black. Elytra shows considerable variation. Almost 80 % has black elytra with longitudinal yellow spot in the middle of the disc ( Fig. 55b, 56Ab), others two yellow spot on the first basal halfof elytra, and another two spots on the apical part that stretch to elytral margin ( Fig. 56Aa). Elytral length 2.50–2.90 mm(mean 2.71 mm), maximal width of both elytra together 1.90–2.20 mm(mean 2.08 mm), ratio of maximal width of both elytra together to length of elytron 0.75–0.79 (mean 0.77; Fig. 56A). Legs entirely yellowish.  Abdomen.Yellowish.   Fig. 55.Type material of  Monolepta mohamedsaidi sp. nov., holotype (BMNH).  Male genitalia.Median lobe is slender and narrowed towards apex. Tectum is long, lanceolate with marked tip. Median spiculae long and slender structure, lateral spiculae fine comb-like, ventral spiculae weakly sclerotised and hardly visible ( Fig. 56C).   Fig. 57.Type material of  Monolepta ranuensis sp. nov., holotype (BMNH).   Fig. 56.  Monolepta mohamedsaidi sp. nov. A.Colour pattern. B.Basal antennomeres. C.Median lobe, a. dorsal, b. lateral, c. ventral, without endophallic structures. D.Spermathecae. E.Bursa-sclerites, a. dorsal, b. ventral.  Female genitalia.Spermatheca with small spherical nodulus, middle part short, cornu long, slender and curved ( Fig. 56D). Bursa sclerites of same size, both with very strong spines ( Fig. 56E).   Diagnosis.  Monolepta mohamedsaidi sp. nov.shows considerable variation on elytra. Small body size with yellow elytra and broad black outer and sutural margins ( Figs 55b, 56Ab) is very characteristic for most specimens. There is some similarity with  M. marginicollisthat is of same size, but has a black spot on vertex and also black pronotal lateral and basal margins ( Figs 34A, 56Ab). Specimens with yellowish spot on elytra look similar to  M. zonulaand  M. empatbulat sp. nov.( Fig. 56Aa).  M. zonula, is on average larger (total length 3.50–4.90,  M. mohamedsaidi sp. nov.3.25–4.00 mm);  M. empatbulat sp. nov.is of same size as M. mohamedsaidi sp. nov.but has partly black legs. The genitalic characters, particularly median lobe, allow also here a clear identification. Highest similarity with  M. zonula,in external and genital morphology suggest a close phylogenetic relationship.   Distribution.Known from Peninsular Malaysiaand Borneo ( Sabah, Sarawakand Brunei; Fig. 54). 5213732376 1978-05 1978-08-31 1978-05 BMNH P. M. Hammond & J. E. Marshall Malaysia 75 3.9166667 4 th. Division 1307 114.76667 Gn. Mulu NP 30 169 1 1 holotype 5213732696 VIII Bruyn Mde & Sutton Brunei Labi 60 4.3 Mxt. Dipt. Forest 1306 114.433334 Bukit Teraja 30 169 46 5213732791 1992-10 MV J. H. Martin Brunei 300 4.616667 Temburung District 1306 115.13333 30 169 24 5213732861 2015-02 CJB P. Kocarek Brunei 4.5333333 Ulu 1306 115.15 Darussalam 30 169 1 Temburong 5213732378 VI Krikken Indonesia true 3.7166667 Mt Bandahara 1307 97.683334 Bivouac 30 169 3 Sumatera Utara 5213732472 VIII Lichtfang, D & Erber Indonesia 1.4166666 Hutapadang 1079 99.28 30 169 1 5213732868 BMNH Lam. Malaysia 5.4 Penang 1305 100.48333 30 169 1 Pulau Pinang 5213732495 1914-01 1914-02-31 1914-01 BMNH Bryant Malaysia 1.5666666 Mt. Matang 1308 110.26667 30 169 3 Sarawak 5213732740 1914-04 BMNH G. E. Bryant Malaysia 1.6166667 Quop 1308 110.4 30 169 1 Sarawak 5213732595 VIII Tinjar & Lejok Malaysia true 3.3333333 Junction 1307 114.15 Mt. Dulit 30 169 1 Sarawak 5213732407 1929-09-11 BMNH H. M. Pendlebury Malaysia 1067 3.55 Bukit Kutu 1307 101.71667 Malay Penin. 30 169 1 Selangor 5213732457 1977-09-08 BMNH M. E. Bacchus Malaysia 0 5.5833335 Telupid 1305 117.11667 Tawau Plat. 30 169 2 Sabah 5213732355 R Holloway Malaysia 3.9166667 Gunong Mulu Nat. Park 1307 114.76667 30 169 4 Sarawak 5213732881 V Marshall Malaysia 75 3.9166667 Base Camp 1307 114.76667 Division Gn. Mulu 30 169 24 Sarawak 5213732913 1987-11-01 RMNH Krikken & Rombaut Malaysia 50 5.866667 Sepilok 1305 117.933334 Sandakan 30 169 2 Sabah 5213732497 1987-11-17 R Sg. Sook & J. Huisman Malaysia 350 Keningau-Sepulut Interior 30 169 1 Sabah 5213732504 [831,1023,611,635] RMNH Malaysia Jong 30 169 1 5213732903 1987-11-09 R Huisman Malaysia West Springs Poring 30 169 1 Sabah 5213732840 1987-11-23 RMNH Krikken & Rombaut Malaysia 4.9833336 Tenom 1306 115.916664 Keningau Area 30 169 1 Sabah 5213732666 1991-02-22 RM Malaysia Malaysia 3.7 Hill 1307 101.73333 Fraser' 30 169 1 5213732919 VI Meor Malaysia 2.3666668 Gunung Ledang 1307 102.6 30 169 1 Johor 5213732832 1997-02 ZFMK Schuh & Lang Malaysia 1400 4.4666667 Tanah Rata 1306 101.36667 Cameron Highlands 30 169 1 Pahang 5213732879 2008-04 P. Cechovsky Malaysia 2.5166667 Endau Rompin 1307 103.4 30 169 1 Pahang