natural, history

Sub-order ANISOPTERAFAMILY GOMPHIDAEictinogomphus australis Iieftincki (Schmidt, 1934)S1. L. 357, Lavanggu, from stomach of nestling of Pacific Pigeon ( Ducula p. pacifica),2. Nov. 1951 - 1 d, (Dan. Exp.)Hutuna, 14.-31. Oct., 12.-18. Nov. 1953 - 33' (Brit. Exp.)Tingoa, 9.-1 I. Nov. 1953 - 10 (Brit. Exp.).These specimens differ slightly in colour pattern from examples from New Guinea.The antehumeral band is briefly interrupted near the upper end and the apical, lateral,yellowish spots on the ninth, and the basal, lateral, yellow spots on the tenth segmentsare lacking. LIEITIl'cK records that the antehumeral band is slightly interrupted at itsupper end in a pair of specimens from Guada1canal. The 3' superior anal appendagesof the Rennell Island specimens may perhaps be slightly more upcurved apically inside view, but much depends on the angle of view. There appears to be some variationin this character in the New Guinea specimens.Distribution: Halmaheira, New Guinea, Solomon Islands.FAMILY AESHNlDAEAeshoidae nymphsSt. L. 377, Lake Te-Nggano, stomach contents of goby (Eleotris) , 22. Oct. 1951 -fragments (Dan. Exp.).FAMILY CORDULIlDAEHemicordulia? oceania Selys, 1871Niupani, Lake Te-Nggano, 24. Nov. 1953 - I ~ (Brit. Exp.).Distribution: Tahiti, Solomon Islands, Tonga, Samoa, New Hebrides, New Caledonia.FAMILY L1BELLULIDAELibeUulidae nymphsSt. L. 377, Niupani, Lake Te-Nggano, shallow water, 23. oct. 1951 - One and a fragment(Dan. Exp.)S1. L. 377, Niupani, Lake Te· Nggano, shallow water, mud bottom, 22.-23. Oct. 1951- 2 examples (Dan. Exp.)S1. L. 383, Te-Nggano Lake, stomach contents of Pacific Eel (Anguilla pacifica), 23.Oct. 1951 fragments (Dan. Exp.).Agrionoptera inslgnis insularis Kirby, 1889St. L. 361, Nanggau, W ofLavanggu, in fern vegetation, 16. Oct. 1951-IJ(Dan.Exp.)St. L. 362, Te-Maingga, W of Lavanggu, grass vegation, 16. Oct. 1951 - 1 J (Dan.Exp.)68