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Nesting Biology and the Nest Architecture of Lithurgus (Lithurgus) collaris Smith (Hymenoptera: Megachilidae) on Iriomote Island, Southwestern Subtropical Archipelago, Japan

Md. Abdul Hannan and Yasuo Maeta
Journal of the Kansas Entomological Society
Vol. 80, No. 3 (Jul., 2007), pp. 213-222
Stable URL: http://www.jstor.org/stable/25086383
Page Count: 10
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Nesting Biology and the Nest Architecture of Lithurgus (Lithurgus) collaris Smith (Hymenoptera: Megachilidae) on Iriomote Island, Southwestern Subtropical Archipelago, Japan
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Abstract

The nests of Lithurgus collaris were found in dead branches of Hibiscus tiliaceus (L.) (Malvaceae). Mean entrance diameter of the nests was 8.5±1.2 mm (n=9). The mean tube length and diameter were 65.7±39.6 mm (n=41, range 7-141) and 7.4±0.7 mm (n=41), respectively. The main entrance was larger than the gallery entrance. Mean number of galleries per nest was 4.6±3.1 (n=9). A completed nest was always sealed with wood dust, which was not seen in a new nest. The mean pollen lump length was 21±5.5 mm (n=9). Larval fecal pellets were thread-like and often extended (5-9 mm) from the abdominal tip. The mean length and width of cocoons were 12.7±0.8 mm and 6.5±0.4 mm, respectively (n=7). Adults appeared to forage pollen in the first half of the day and nectar during the latter half of the day.

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