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Summary Like the majority of temperate insects, the adult reproductive diapause of the polyvoltine species of the leek moth, Acrolepiopsis assectella (strain of Tours) depends upon both of the photoperiods and temperatures used. A high percentage of diapause is associated with short...
RESUMO E revista a fauna de cigarras de Portugal com base em material considerável. São descritas três espécies novas: Tettigetta estrellae, n. sp., T. josei, n. sp. e Euryphara contentei, n. sp.; é criado um taxon subespecífico: Cicada barbara lusitanica, n. ssp., ao passo que C. gastrica Stål...
Summary The tetrameric regeneration of the tarsus of cockroaches is used as a labelling method, and tested in Periplaneta americana. The ablation is made at the beginning of first instar, the regrowth is achieved by the beginning of next instar; the label remains until adult stage. Reading the...
Summary New experimentals hybrids with Chrysocarabus (Chrysotribax) rutilans are described and discussed: — C. rutilans × C. punctatoauratus, — C. rutilans X C. lineatus, — F1 (C. rutilans X C. splendens) X C. rutilans, — F1 (C. rutilans X C. splendens) X C. splendens.
Summary Researches effected by the author in southern France and the results achieved by the experimental inversion of hostplants show that the E. aurinia subspecies are monophagous. Hibridization, leading to the sterility of the imagoes or to the death of the larvae if the food-plants are...
Summary The genus Episparis F. Walker, s. l., has been revised. Examination of the type specimens and of their genitalia lends support to the subdivision of the genus into three parts as proposed by Berio (1964): genus Episparis, s. str., genus Episparina and genus Episparonia. However, the...
Summary Apterous and winged forms of Neosymydobius butzei s. str., N. butzei var. papillata and N. ajuscanus, sp. nov. are described and compared with other species of the genus. A key is given for the 9 species known in that North American genus.
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