New Neotropical Element (Anoplotermes) in Indian Termite Fauna

Abstract

THE termite genus Anoplotermes Müller¹ is, along with Speculitermes Wasmann², unique among termites in not having a soldier caste, only the workers and the reproductives being present. The two genera have a close resemblance to each other. Speculitermes has been regarded by certain authorities, for example, Holmgren³ and Grassé⁴, as a subgenus of Anoplotermes, while others⁵ regard it as a full genus. We believe the latter view to be more tenable since the differences between the two genera are considerable, though they are undoubtedly closely allied. They may be keyed as follows: 1 (2). Smaller forms (head-width c. 0.4–1.2 mm.). Mid-dorsal spot on head either absent or greatly reduced. Antennae shorter (1.2–1.6 times the head-width); with 14 segments; 3rd segment smaller than 2nd. Foretibia swollen. Tibial spur formula variable, either 3 : 2: 2 or 2:2:2. Left mandible with an apical and 2 or 3 marginal teeth, the 3rd marginal, when present, very small. .... Anoplotermes 2 (1). Larger forms (head-width c. 1.0–1.4 mm.). Mid-dorsal spot on head (‘Stirnocellus’ of Wasmann) large and prominent. Antennae longer (1.5–2.0 times the head-width); with 14–15 segments; 3rd segment longer than second. Foretibia not swollen. Tibial spur formula 2:2:2. Left mandible with an apical and 2 marginal teet ........ Speculitermes