OdonatologicalAbstracts 1974 1979 (5779) BEESLEY, C, 1974. Simulated field preda- (5780) HEINE, M. & PEETERS, 1979. Een verder tion of alternati- single-prey (Culex peus) and onderzoek naar de lerreslrische macro-fauna Chrionomus ve-prey (Culex peus: sp. 51) by op de nymphaeidae waterplanten, Nymphaea Anax junius Drury (Odonata: Aeschnidae). alba L. Nymphaea Candida PresI, Nuphar Proc. Mosq. Coni. Assoc. 42: 73-76. — lulea(L)Sm.. Nymphoidespellala(Gmel.) O. Abatement (Contra Costa Mosquito Distr., Kunlze en Potamogeton natansL., in 1976 en 1330 Concord Ave., Concord, CA 94520, 1977. — [Further studies on the terrestrial ma- USA). croinvenehrale fauna of the aquatic Nym- Simulated-field predation tests with A. junius phaeidae, Nymphaea alba L., N. candida conducted in were enclosed-unit fiberglass Presl, Nuphar lutea (L.) Sm., Nymphoides tubs, with both single and alternative prey avai- peltata (Gmel.) O. Kuntze en Potamogeton lable C. Chironomus and — (Culex peus: peus and nalans L. in 1976 1977] Lab. Aquat. species 51 respectively). C. peus egg rafts and Oecol., Kathol. Univ. Nijmegen, Toernooi- C. 51 intro- IV + 244 (Dutch, with sp. egg masses were periodically veld-Nijmegen. pp. duced to sustain prey population and daily Engl. s.). —(Lab. Aquat. Ecol., Univ. Nijme- recorded. Predators ED prey emergence was were gen, Toemooiveld, NL-6525 Nijmegen). at 3 and The work in the initially introduced densities moni- was carried out Ooypolder nr tored at 2-week intervals for growth and popu- Nijmegen, the Netherlands. The odon. (inch lation size. Results showed that dragonfly spp. lists) are discussed. larvae controlled mosquito populations at all 3 in the densities single, and the 2 higher den- (5781) UBUKATA. H., 1979. Studies onpopulation sities in the alternative In both behavior and Cor- prey tests. tests, dynamics, territoriality of i the amurensis higher predator densities were seen to dulia aenea Selys (Odonata: Cordu- reduce prey populations in a shorter period of liidae). D. Sd, thesis, Hokkaido Univ., time. However, with 44 subsequent mosquito re- Sapporo IV + 122 pp. + pp. Appendix, duction predator populations also declined to with tabs& figs). —(Author: Dept. Sci. Educ., a few remaining large larvae. These reduced Kushiro Coll., Hokkaido Univ. Shiroyama I, larval populations continued to maintain Kushiro, 085, JA; — Copies available from: control ofthe mosquitos. With the presence of Library, Fac, Sci. Hokkaido Univ., Sapporo, an alternative prey, predator populations still 060, JA). declined after mosquito reduction, but re- The text is Engl, throughout, and it is partly mained in OA significantly higher than the single- based on papers listed in 609, 1192, 3053, Larvae exercised -prey tests. no significant 3565, 4795, 4963, 5762, 5867. The dissertation control the over midge populations. is the result of field work carried out (1970- -1979) at the Hôrai-numa lake, Hokkaido. — 316 Odonatological Abstracts (1) Larval development is estimated at 4 yr, hibits reduction in the number of comple- based on periodical sampling and laboratory ments. Intermediate stages occur in various — The numbers rearing. (2) were estimated of orders, and an interesting modification is larvae class individuals the eggs laid, per year (yc), found in Odon. These conclusions corro- and those the emerged entering reproductive borate those of S. MATSUDA (1965, Mem. the period. Only 0.03-0.06%reached ultimate Am. enl. Inst. 4: 1-334). stage (yc 1970 and 1971, resp.). The mortality and low (qx) was high duringsummer during (5783) DESHPANDE, S.B., 1984. Studies on the the winter. — The net rate the (3) reproductive morphological evolutionary trends of man- and the of natural (Rq) rate increase (r) were dibular muscular patterns in insects. J. Anim. estimated at and 1.40-2.80 0.08-0.26/yr, resp. Morphol. Physiol 31(1/2): 39-52. — (Dept — (4) The behavioural patterns of imagines are Zool, Kamatak Sd. Coll, Dharwad-580001, described, and the impart of meteorological India). conditions behavioural features is dis- on some Lestes elata and Anax immaculifrons are in- cussed. — (5) The mechanisms of sex recog- cluded in the study. The ventral mandibular nition were examined experimentally; the muscles exhibit gradual degeneration during and flight direction the thickness of the basal hexapod evolution, leading to their complete part of the abdomen are the principal recog- absence in the higher orders. The dorsal nition marks. — Positive correlations (6) are muscles show a tendency towards better devel- site demonstrated between preference and opment, by increasing their size. Intermediate male and female between female and density, conditions occur in the "generalized orders". and between emergence density, emergence These conclusions corroborate those of S. and the ofthe mat. — Mem. density development bog MATSUDA (1965, Am. enl. Insl. 4; (7) At low male density, the latter patrol long 1-334). stretches (20 m), but the length of these de- with increased creases density (min. 7 m). The (5784) DESHPANDE, S.B., 1984. The thoracic func- the smaller the patrol area becomes, stronger tional myology of odonates. A study of the the effect of the residence. — (8) The previous patterns as found in Lestes elata Hagen (Zy- the number males ratio of of at the most pre- goptera) and Anax immaculifrons Rambur of ferred site (NE) decreased with the increase (Anisoptera). J. Anim. Morphol. Physiol. at — the total number of adult males the lake. 31(1/2): 67-78. — (Dept Zool., Kamatak Sd. (9) Functions of the territory and mechanisms Coll, Dharwad-580001, India). reduction of in C. governingthe patrol areas a. The thoracic muscular pattern in both sub- are (10) The evo- amurensis analyzed, and orders appears archaic. It characteristically in Odon. is dis- lution of territoriality the lacks the usual neopterous indirect wing muscles. The cussed. exclusively occurring fifth to tenth tergopleurals, the second and third ter- 1984 and first gosternals the axillary muscles are for muscle responsible flight. The only leg par- the (5782) DESHPANDE, SB., 1984. Studies on in is the of taking flight tergal promotor the morphological evolutionary trends of the coxa and hence the legs are freely movable muscular and labial patterns in some biting even during flight. The flight muscles in the insects. J. Anitn. chewing Morphol. Physiol. pterothoracic segments of the zygopteran type 31(1/2): 25-38. — (Dept Kamatak Sd. Zool., function alternately to produce slow flapping Coll., Dharwad-580001, India). flight. Constrastingly, in the anisopteran type, which The extent to Matsuda’s interpretations due to the insertion of the mesothoracic first are valid was studied on the Indian material, the axillary muscle on persistent axillary elata and It incl. Lestes Anax immaculifrons. is process, the phase difference between wing concluded that during the evolution of biting beats is reduced, which is responsible for effi- and chewing irtSects the labial musculature ex- cient flight. Odonatological Abstracts 317 (5785) MÉSZÂROS, Z. & M. CSIBY, 1984. Szita- Insect predators. Bull. Am. Mosquito Control kotdk, kérészek. hangyalesôk. — [Dragonflies, Ass. 1985(6): 25-41. — (Dept EnL, Univ.Cali- and the mayflies neuropterous insects\ Mora fornia, Davis, CA 95616, USA). 64 Ferenc Kônyvkiadô, Budapest. pp. — Predation ofmosquitoesby arthropods is con- 963 11 [ISBN 37 66 X], (Hung.). sidered to be an Importantcomponent of mos- Pocket-size booklet directed the Methods of (12x16 cm), at quito mortality. studying pre- reader. The the and general odon. section (pp. 4-17, 7 dation in field the importance ofpre- col. 21 with pis incL) covers spp., a moreor less dators tothe different life stages ofmosquitoes adequate general characterisation and col. are discussed in this overview. Predation of of each of them. insects such and carabids and of drawing eggs by as ants adults spiders, Diptera and Odon. is con- I by (5786) VAN DER LAAN, N„ 1984. Libellen in de sidered to be of minor importance, whereas Overijsselse Vecht. Oriënterend onderzoek predators of the larval and pupal stages, inclu- de belekenis naar van libellen als indicator- ding Coleoptera such as Dytiscidae, Hemiptera groep voor een integraalland- en waterbeheer. such as Notonectidae,Odon., Dipteraand Tri- — the Vecht have roles [Dragonflies of Overijsselse area. choptera, veiy important as agents into A pilot inquiry dragonfliesas indicators in of mortality. It is suggested that the general land- and wetlands form of the immature integrated management ]. survivorship curve Landbouwhogeschool, Wageningen (Verslag among stable-state mosquito populations Vl+138 LH/NB 749). pp. (Dutch). might provide an indication ofthe relative im- A very detailed, but somewhat verbose study portance of various biotic mortality factors. of the odon. fauna (23 spp.) of this area, Over- Intraspecific competition, as well as mortality ijssel Prov,, the Netherlands, with emphasis induced by pathogens and parasites, is most on the management of diverse local habitats. likely to exert an effect on the later instars, whereas The monograph is not directed at odonatolo- predation, particularly in commu- but gists, contains a number ofadequately do- nities where the predator complex approaches be cumented suggestions. Special references are saturation, would expected to operate to made e.g. the negativeimpact oflargecattle strongly over all immature stages, thus pro- populations grazing on the banks, grass ducing a survivorship curve wherein the pre- of of mowing, reaping