CLADOENDESIS OF EPHEMEROPTERA
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Figure 1. Cages for rearing mayflies.

A–D – Two different variant of water-cages for rearing subimagoes from larvae: A–B – 1^st variant of water-cage, made of polyamide net with aluminium framework: A – in assembled condition ready to use; B – in disassembled condition; C–D – 2^nd variant of water-cage, made of polyamide net and translucent plastic: C – in assembled condition ready to use; D – scheme of horizontal section, to show method of fastening of plastic walls, net walls and non-removable floats. E – air-cage for rearing imagoes from subimagoes.

a – cube (without upper wall) made of polyamide net; b – textile tube; c – 2 aluminium frameworks attached to polyamide net by threads; d – 2 foamy plastic floats attached to framework; e – 2 removable foamy plastic floats; f – 4 metallic staples to fix removable foamy plastic floats; g – removable metallic bracket with string; h – polyamide cord; i – plummet; j – 2 walls of thick translucent plastic; k – 2 square plates of thin translucent plastic; l – band of polyamide net forming two walls and bottom; m – schematically shown two spaces, where thick and thin plastic plates are glued together by the same translucent plastic dissolved in chloroform.