Identification guide to the ant genera of Borneo - AntBase.net

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IDENTIFICATION GUIDE TO BORNEAN ANTS Metanotum (MTN): The dorsal sclerite of the metathorax. In ants, the metanotum may be reduced, or obliterated. Metanotal groove (MTG): In ants, the mesonotum and propodeum are often separated by a transverse groove or impression (Metanotal groove) representing the last vestige of the metanotum. of three parts, scape (SC), pedicel (PD) and funiculus (= flagellum, FU). The antenna in ants consists of 4-12 segments. The funicular segments may be filiform or enlarged to form a club. Metapleuron (MTP): The lateral and ventral part of the metathorax. In ants, the metapleuron is located posteriorly on the side of the alitrunk, below the level of the propodeum. The metapleuron bears metapleural grand (MG). See metapleural grand Atennal scrobe (ASC) It is a groove, impression, or excavation in the side of the head, which runs above or below the eye, for reception of antennal scapes. Antennal socket (insertion) The scape articulates with the head in the antennal socket (ASO). In ants, the antennal socets usually are overhung and concealed the fronta lobe, but in some the fronta lobe absent or reduce so that they are exposed. Antenna It is a paired segmented sensory appendage of the head between the compound eyes, which consists Part 3 - COLLECTING, HANDLING, IDENTIFICATION AND STORAGE FOR SELECTED GROUPS 139
Y. HASHIMOTO Club (CL) The enlarged apical funicular segments of an antenna. In ants, apical 1-4 segments may be enlarged to form a club. Frontal carina (FC) A pair of longitudinal ridges on the head, located dorsally behind the clypeus and between the antennal sockets. Commonly the frontal carinae anteriorly are expanded into the frontal lobes. See Frontal lobes Clypeus (CP) Anterior sclerite of the dorsal head, bounded posteriorly by the fronto-clypeal suture (= posterior clypeal margin or border, FS). The anterior clypeal margin usually forms the anterior margin of the head in full-face view. The body of the clypeus consists of median portion and a pair of lateral portions (MC, LC). The median portion of the clypeus may be equipped with one or more longitudinal carinae, or may be variously specialized in shape. Frontal lobe (FB) The frontal lobes commonly are extensions, which partially or entirely cover and conceal the antennal sockets. In some taxa the clypeus is very reduced and extremely narrow from front to back. Leg segments Each leg consists of a basal coxa (BC) that articulates with the alitrunk, followed in order by a trochanter (TR), femur (FE), a tibia (TB), and a tarsus (TA), the last consisting of five small segments and terminating apically in a pair of claws (CA). Tibial spur (TBS) A socketed spur located at the apex of each tibia. The forelegs have a single pectinate tibial spur, modified into an antennal cleaner (strigil). The middle and hind legs may each have two, one, or no spurs present. 140 Part 3 - COLLECTING, HANDLING, IDENTIFICATION AND STORAGE FOR SELECTED GROUPS
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Identification guide to the ant genera of Borneo - AntBase.net

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