Labidura Riparia (dermaptera, Labiduridae) From Brazil: Karyotype And C-banding

The karyotype of Labidura riparia from Brazil is 2n=5A+XY for males and 2n=5A+XX for females. The chromosomes can be grouped into 3 large and 3 small pairs, the latter including the sex chromosomes. The Y chromosome is entirely C-band positive and remains heteropycnotic during most of the division cycle. The X chromosome, which is longer than the Y chromosome, presents no C-banding. The longest chromosome of the complement has very noticeable C-bands at one of its terminal. Only one nucleolus was seen in the preparations examined. These results on the general chromosomal morphology are very similar to the karyotype described for L. riparia in the USA. The most significant similarity is that chromosome number 1 is about 20% longer than chromosome 2, a feature not observed in the karyotypes of L. riparia from other regions of the world. In addition, the difference in size between the chromosomes X and Y of Brazilian and US L. riparia is not as large as that for other populations.6519396Asana, J.J., Makino, S., The idiochromosomes of an earwig, Labidura riparia (1934) J. Morphol., 56, pp. 361-369Brindle, A., A revision of the subfamily Labidurinae (Dermaptera, Labiduridae) (1966) Ann. Mag. Nat. Hist. Ser. 13, 9, pp. 239-269Giles, E.T., Webb, G.C., The systematics and karyotype of Labidura truncata Kirby, 1903 (Demaptera: Labiduridae) (1972) J. Aust. Ent. Soc., 11, pp. 253-256González-García, J.M., Antonio, C., Suja, J.A., Rufas, J.S., Meiosis in holocentric chromosomes: Kinetic activity is randomly restricted to the chromatid ends of sex univalents in Graphosoma italicum (Heteroptera) (1966) Chrom Res., 4, pp. 124-132Guimarães, J.H., Tucci, E.C., Gomes, J.P.C., Demaptera (Insecta) associados a aviários industrials no estado de São Paulo e sua importância como agentes de controle biológico de pragas avícolas (1992) Revta Bras. Ent., 35, pp. 527-534Hoshiba, H., Sakai, S., Hoshiba, E., Karyotype and C-banding analysis of the common seaside earwig, Anisolabis maritima (Bonelli) (Anisolabididae, Dermaptera) (1984) Proc. Japan Acad., 60 B, pp. 235-237Karyological and C-banding analysis of the male of the Japanese striped earwig, Labidura riparia japonica (de Hann) (Labiduridae, Demaptera) (1984) Proc. Japan Acad., 60 B, pp. 365-367Imanishi, M., Chromosome studies on the two chelisochid earwigs with special reference to the 46 Demapteran species (1988) Proc. Japan Acad., 64 B, pp. 303-306Imai, H.T., Taylor, R.W., Crosland, M.W.J., Crozier, R.H., Modes of spontaneous chromosomal mutation and karyotype evolution in ants with reference to the minimum interaction hypothesis (1988) Jpn. J. Genet., 63, pp. 159-185Kuznetsova, V.G., The karyotype of Labidura riparia in West Siberia (type-locality) and the systematics of the genus Labidura Leach (Demaptera, Labiduridae) (1979) Entomol. Rev., 58, pp. 49-52Mittal, O.P., Sawhney, V., Kapoor, V.C., The status of Labidura bengalensis (Demaptera) (1974) Oriental Insects, 8, pp. 541-543Moreira, C., Forficulídeos do Brasil (1930) Bol. Inst. Biol. Def. Agric., 7, pp. 1-34Morgan, W.P., A comparative study of the spermatogenesis of five species of earwigs (1928) J. Morph., 46, pp. 241-273Schliner, E.I., Van der Bosch, R., Dietrick, E.J., Biological notes on the predaceous earwig Labidura riparia (Pallas), a recent immigrant to California (Demaptera. Labiduridae) (1959) J. Econ. Entomol., 5, pp. 247-249Sumner, A.T., A simple technique for demonstrating centromeric heterochromatin (1972) Exp. Cell Res., 75, pp. 304-306White, M.J.D., The chromosomes of Hemimenus bouviert Chopard (Dermaptera) (1971) Chromosoma, 34, pp. 183-18

Atratividade de diferentes iscas e sua relação com as fases de desenvolvimento ovariano em calliphoridae e sarcophagidae (insecta, diptera) Attractiveness of differents baits and its relation with ovarian development fases in Calliphoridae ano Sarcophagidae (Insecta, Diptera)

<abstract language="eng">Attrativeness of differents baits (fish, faeces and banana) upon ovarian development fases of Calliphoridae and Sarcophagidae was evaluated. The insects were captured in Distrito Federal (urban area) and Rio de Janeiro city (beach, zoological garden, urban area and Tijuca forest). The most frequent species captured were: Calliphoridae - Chrysomya megacephala (Fabricius, 1794) 78,9% and Chtysomya puloria (Wiedemann, 1818) 5,4% - and Sarcophagidae - Sarcophagula Wulp, 1887 2,3% and Peckya chrysostoma (Wiedemann. 1830) 2,2%. Fish was more attractive to females of Calliphoridae flies in intense ovarian vitelogenesis, although banana atracted more flies with mature eggs. Faeces and fish were more atractive for Sarcophagidae in the beggining of vitelogenesis