Revision of the Malagasy Camponotus subgenus Myrmosaga (Hymenoptera, Formicidae) using qualitative and quantitative morphology Author Rakotonirina, Jean Claude Madagascar Biodiversity Center, BP 6257, Parc Botanique et Zoologique de Tsimbazaza, Antananarivo, Madagascar & Departement d'Entomologie-Culture, Elevage, Sante; Faculte des Sciences, BP 906, Universite d'Antananarivo, Antananarivo, Madagascar jcrakoto25@yahoo.com Author Fisher, Brian L. https://orcid.org/0000-0002-4653-3270 Entomology, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118, USA text ZooKeys 2022 2022-05-03 1098 1 180 http://dx.doi.org/10.3897/zookeys.1098.73223 journal article http://dx.doi.org/10.3897/zookeys.1098.73223 1313-2970-1098-1 B4F4033F296E43CCBE54B9413BC19268 B22184E75B1A59C9B985C0DD9F092196 Camponotus joany sp. nov. Figs 2A , 4B , 61 Holotype worker. Madagascar : Province Antsiranana : Montagne des Francais , 7.2 km 142° SE Antsiranana (=Diego Suarez), -12.32278 , 49.33817 , 180 m, tropical dry forest, 11 Apr 2009 (Fisher, Griswold et al.) collection code: BLF03132, specimen code: CASENT0408908 (CAS). Paratypes. 2 minor workers with same data as holotype but respectively specimen coded as: CASENT0408907, CASENT0408909 (PBZT, CAS). Additional material examined. Madagascar : Antsiranana : Montagne des Francais , 7.2 km 142° SE Antsiranana (=Diego Suarez), -12.32278 , 49.33817 , 180 m , tropical dry forest (Fisher, Griswold et al.) (CAS) . Diagnosis. In full-face view, lateral margins of head anterior to eye level approximately parallel and covered with erect hairs; two apical teeth of mandible normally spaced; mesonotum short and lacking constriction; propodeal dorsum approximately straight, 2 x as long as declivity; dorsal margin of petiole shorter than posterior margin. Description. Minor worker. In full-face view, lateral margins of head anterior to eye level approximately parallel, rounding progressively towards a slightly concave posterior margin; eye convex and large (EL/CS: 0.27 +/- 0.00; 0.27-0.28), not breaking lateral cephalic margin, location of its posterior margin at posterior 1/4 of head (PoOc/CL: 0.26 +/- 0.00); frontal carinae parallel, not widely opened posteriorly (FR/CS: 0.27 +/- 0.0); clypeus lacking anterolateral angle, anteromedian margin broadly convex; two apical teeth of mandible normally spaced; antennal scape relatively long (SL/CS: 1.62 +/- 0.01; 1.61-1.63). Dorsal outline of mesosoma approximately evenly convex; metanotal groove visible; propodeal dorsum straight, ca. 2 x as long as declivity, joining it at a blunt angle. Petiole nodiform, its dorsal margin shorter than anteriorly inclined rear margin and joining the anterior margin at a blunt angle. First and second gastral tergites without a pair of white spots; short erect hairs on lateral margin of head present; near posterior margin of head with two elongate erect hairs; antennal scape covered with erect hairs; junction of propodeal dorsum and declivity with one pair of erect hairs. Major worker. Unknown. Distribution and biology. Camponotus joany is geographically restricted to the dry forest of Montagne de Francais in the north of Madagascar (Fig. 61D ). Its nest sites are unknown and workers have been found foraging on lower vegetation. Figure 61. Camponotus joany A lateral view B head in full-face view C dorsal view of holotype minor worker CASENT0408908 D distribution map. Discussion. See discussion under C. aina . Etymology. The species name Camponotus joany is a non-Latin singular noun used in apposition.