Camponotus cervicalis Camponotus (Dinomyrmex) Camponotus (Tanaemyrmex) Camponotus gaullei Camponotus (Dinomyrmex) Camponotus (Tanaemyrmex) Camponotus cervicalis Camponotus perroti Camponotus perroti aeschylus Camponotus gerberti Camponotus (Tanaemyrmex) Revision of the Malagasy Camponotus subgenus Myrmosaga (Hymenoptera, Formicidae) using qualitative and quantitative morphology Rakotonirina, Jean Claude Fisher, Brian L. ZooKeys 2022 2022-05-03 1098 1 180 QDLR A2F2DBE2-3BBE-5A79-804E-35012C841EF4 Roger Roger 1863 Insecta Formicidae Camponotus CoL Animalia Camponotus cervicalis Hymenoptera 0 1 Arthropoda species cervicalis   Figs 8A , 9B , 10B , 50   Camponotus cervicalisRoger, 1863: 134. Syntype workers, Madagascar (Humboldt) (NHMB); 1 syntype minor worker designated as lectotype, by present designation, AntWeb CASENT0101178 (NHMB) [examined]. Paralectotypes: 3 minor workers and 2 major workers of same data as lectotype but respectively specimen coded as: CASENT0101551, CASENT0101552 (MHNG), CASENT0104634 (ZMHB); CASENT0101704 and CASENT0101779 (MHNG) [examined]. Combination in Camponotus (Dinomyrmex): Forel, 1914: 268; in Camponotus (Tanaemyrmex): Emery, 1925: 84.  Camponotus gaulleiSantschi, 1911a: 128. Syntype workers, Madagascar, S. de la Baie d'Antongil, (NHMB); 1 syntype minor worker designated as lectotype, by present designation, AntWeb CASENT0101179 (NHMB) [examined]. [Combination in Camponotus (Dinomyrmex): Wheeler, 1922: 1043; in Camponotus (Tanaemyrmex): Emery, 1925: 84]. As subspecies of Camponotus cervicalisby Emery, 1925: 84. Syn. nov.  Camponotus perrotiForel, 1897: 202. Syntype workers, Madagascar, Sainte Marie (Perrot) (MHNG); 1 syntype minor worker designated as lectotype, by present designation, AntWeb CASENT0101350 (MHNG) [examined]. Paralectotype major worker of same data as lectotype but with specimen code CASENT0101351 (MHNG) [examined]. Syn. nov.  Camponotus perroti aeschylusForel, 1913: 224. Holotype (by monotypy) alate queen, Madagascar (C. Keller) AntWeb CASENT0101561 (MHNG) [examined]. Syn. nov.  Camponotus gerbertiDonisthorpe, 1949: 271. Syntype workers, Madagascar, Sainte Marie (R. Geberti1917) (NHMUK); 1 syntype minor worker designated as lectotype, by present designation, AntWeb CASENT0102310 (NHMUK) [examined]. Paralectotypes: 2 major workers of the same data as lectotype but with the following specimen codes: CASENT0102309, CASENT0102311 (NHMUK) [examined]. [Combination in Camponotus (Tanaemyrmex): Donisthorpe, 1949: 271]. Syn. nov.  Additional material examined.    Madagascar: Antananarivo: [Madagascar]; Ambatomanjaka; Miarinarivo, -18.766947, 46.869107,  1343 m(Humblot) (MNHN); Iharanandriana, -19.15823, 47.49702,  1513 m,  Uapacawoodland ( B.L. Fisheret al.) (CAS).   Antsiranana:  ForetAmbanitaza, 26.1 km347° Antalaha, -14.67933, 50.18367,  240 m, rainforest ( B.L. Fisher) (CAS); RS Ankarana,  7 kmSE Matsaborimanga, -12.9, 49.11667,  150 m, rainforest ( P.S. Ward) (PSWC).   Toamasina: S. de la baie d'Antongil. (NHMB); Mananara Avaratra, -16.170555, 49.765208,  18 m( B.L. Fisheret al.) (CAS); Nosy Mangabe, -15.5, 49.76667, <  5 m, rainforest edge ( P.S. Ward) (PSWC); Nosy Mangabe,  7.43 kmS Maroantsetra, -15.4973, 49.76223,  3 m, littoral rainforest ( B.L. Fisheret al.) (CAS); PN Masoala,  39.4 km150° SSE Maroantsetra, -15.71, 49.97,  200 m, rainforest ( B.L. Fisher& H.J. Ratsirarson) (CAS); Parcelle K7 Tampolo, -17.28333, 49.41667,  10 m, littoral forest (Malagasy ant team) (CAS); RNI Betampona, 34.1 km332° Toamasina, -17.91614, 49.20185,  550 m, rainforest ( B.L. Fisheret al.) (CAS); SF Tampolo,  10 kmNNE Fenoarivo Atn.-17.2825, 49.43,  10 m, littoral rainforest ( B.L. Fisher) (CAS); Tampolo, -17.28333, 49.41667,  10 m, littoral forest ( Malagasyant team) (CAS).  Diagnosis. With head in full-face view, lateral cephalic margin converging posteriorly towards eye level, covered with erect hairs from anterior to posterior of eye level; anteromedian margin of clypeus broadly convex; two apical teeth of mandible normally spaced.  Description.  Minor worker.In full-face view, head sides converging progressively towards short posterior margin; eye protruding and large (EL/CS: 0.28 +/-0.01; 0.26-0.30), breaking lateral cephalic margin, level of posterior margin located at posterior 1/3 of head (PoOc/CL: 0.30 +/-0.01; 0.29-0.31); frontal carinae wide (FR/CS: 0.27 +/-0.01; 0.26-0.28), distance between them larger than smallest distance to eye; clypeus with anterolateral angle and anteromedian margin with blunt angle or convex; mandible with two apical teeth distantly spaced; antennal scape relatively long (SL/CS: 1.81 +/-0.12; 1.57-1.94). Promesonotum weakly convex, mesopropodeum almost flat, joining declivity with rounded angle; metanotal groove weakly visible; propodeal declivity 1/2 length of the dorsum. Petiolar node as long as high, with dorsal margin inclined posteriorly and rounding to anterior margin; anterior face 1/2 height of the posterior; femur of hind leg rounded axially, not twisted basally. First and second gastral tergites without a pair of white spots; lateral margin of head with erect hairs; more than six erect hairs present near posterior margin of head; antennal scape covered with erect to suberect hairs inclined at ca. 45° as well as appressed hairs; pronotum covered with few erect hairs, mesonotum with a pair of hairs; posterodorsal angle of propodeum with two pairs of erect hairs.  Major worker.Characteristics the same as minor worker, except the enlarged head (CS: 4.17 +/-0.35; 3.83-4.63; CWb/CL: 0.91 +/-0.03; 0.85-0.93); the more strongly built mandible; apical 1/4 of antennal scape surpassing posterior cephalic margin; pronotum convex, mesonotum sloping towards metanotum, propodeal dorsum feebly convex and its junction to declivity broadly angulate; petiolar node much higher than long.  Distribution and biology.   Camponotus cervicalisis only known to occur in littoral forests and lower elevations of the rainforests in the east of Madagascar between the Ambanitaza forest in the north and the RNI Betampona in the south (Fig. 50D). Workers of the species have been found foraging on the ground and through leaf litter, but nest sites range from rotten logs, rotting tree stumps, rot pockets above the ground, live trees, under tree bark, and in moss and leaf litter.   Figure 50.  Camponotus cervicalis Alateral view Bhead in full-face view Cdorsal view of minor worker CASENT0217303 Ddistribution map.  Discussion.   Camponotus cervicalisand  C. niavolook similar, but in the latter, the level of the posterior ocular margin is located at posterior 1/4 of length of head and its antennal scape lacks appressed hairs. In his original description of  Camponotus gaullei, Santschi (1911a)discussed the resemblance of the species to  C. cervicalisand  C. dufouriand no strong separating characters were provided. However, with recent extensive sampling of the Malagasy ant fauna, the observation of the range of worker class sizes in these latter species indicates the closer similarity between  C. cervicalisand  C. gaullei. Combined with the close distance between the type localities of both species, this information would be enough to synonymize  C. gaulleiunder  C. cervicalis. The description of  C. perrotiby Forel (1897)was based on a limited number of worker specimens which had a close similarity to  C. cervicalisand  C. dufouri. Careful examinations of more specimens obtained from the recent ant surveys in Madagascar show that  C. perrotiand  C. cervicalisbelong to the same species and that  C. perrotimerits its placement as a junior synonym of  C. cervicalis.  Forel'sdescription of  C. perroti aeschyluswas based only on a single alate queen, and the comparison of this specimen with the queen specimens of  C. cervicaliscollected from its geographical range across Madagascar revealed that this type specimen was a queen of  C. cervicalis.  Donisthorpe'sdescription of  Camponotus gerbertidid not compare the characters of the taxa to those of other species, although this description morphologically matches the type specimens of  C. cervicalis. The data obtained from the recent ant survey in Madagascar and this information are sufficient to reasonably synonymize  C. gerbertiunder  C. cervicalis. The identity of  C. cervicalisbased on conventional qualitative taxonomy is recognized by multivariate morphometric analysis. The cluster of the samples of the species created by NC-clustering method is confirmed by cumulative LDA with an identification success of 100%. 2022-01-01 2022-12-31 2022-01-01 B. L. Fisher Madagascar 1343 -19.15823 Miarinarivo 1 47.49702 Ambatomanjaka 1 Antananarivo 2022-01-01 2022-12-31 2022-01-01 B. L. Fisher, RS Ankarana, P. S. Ward Madagascar 240 -14.67933 Antalaha 1 50.18367 Foret Ambanitaza 1 Antsiranana 2022-01-01 2022-12-31 2022-01-01 B. L. Fisher, P. S. Ward, PN Masoala, H. J. Ratsirarson, Parcelle K, SF Tampolo, Malagasy Madagascar 18 -17.28333 Mananara Avaratra 1 49.41667 1 Toamasina