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The worker caste of the hodotermitid harvester termites

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Résumé

Les colonies deHodotermes, Microhodotermes et d'Anacanthotermes possèdent des grands et des petits ouvriers. ChezHodotermes, ceux-ci se développent indépendamment à partir de différents stades larvaires; les petits ouvriers ne se transforment pas en grands ouvriers. A chaque grand ouvrier correspond approximativement 3,7 petits ouvriers, et la taille réelle de ces deux castes d'ouvriers peut différer de façon importante d'une colonie à une autre. Le premier ouvrier pigmenté des colonies jeunes est un petit ouvrier du 4e stade, mais dans les, colonies plus âgées, les stades des ouvriers sont plus tardifs et variables. Les grosses larves pouvant produire de grands ouvriers, et les petites, avec des taches de pigmentation, des petits ouvriers, peuvent également subir des mues stationnaires.

Summary

Colonies ofHodotermes, Microhodotermes andAnacanthotermes have major and minor workers. InHodotermes, these develop independently from different larval stages; minor workers do not transform to major workers. For each major worker there are approximately 3.7 minor workers, and the actual sizes of the two worker castes can differ greatly from colony to colony. The first pigmented worker of incipient colonies is a minor worker of the 4th instar, but in more mature colonies the instars of the workers are later and variable. Large larvae, which can produce large workers, and small larvae with patchy pigmentation, which can produce minor workers, can also undergo stationary moults.

Zusammenfassung

Kolonien vonHodotermes, Microhodotermes undAnacanthotermes, enthalten grosse und kleine Arbeiter. Im Falle vonHodotermes entwickeln sie sich unabhängig aus verschiedenen Larvenstadien; kleinere Arbeiter wandeln sich nicht in grössere um. Auf einen grossen Arbeiter entfallen etwa 3,7 kleine Arbeiter. Der tatsächliche Umfang der beiden Arbeiterkasten kann sehr von Kolonie zu Kolonie schwanken. Der erste pigmentierte Arbeiter in jungen Kolonien ist ein kleiner Arbeiter im 4. Larvenstadium, aber in älteren Kolonien setzen sich die Arbeiter aus älteren Larven mit unterschiedlicher Zahl von Häutungen zusammen. Grosse Larven, aus denen sich grosse Arbeiter entwickeln können, und kleine Larven mit fleckiger Pigmentierung, die sich zu kleinen Arbeitern differenzieren können, können auch stationäre Häutungen durchmachen.

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Watson, J.A.L. The worker caste of the hodotermitid harvester termites. Ins. Soc 20, 1–20 (1973). https://doi.org/10.1007/BF02223558

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