An illuminated dome comprising a wide cylinder of nylon gauze sheeting, suspended from a transparent beach umbrella, has been developed. An internal lighting system consisting of fluorescent tubes or mercury-vapour bulbs is used to illuminate the dome. These two light sources are briefly compared for their effectiveness in attracting insects.
The behaviour and life history of the rare myrmecophilous lycaenid Erikssonia acraeina Trimen (Lepidoptera: Lycaenidae) is recorded for the first time. The host plant was found to be Gnidia kraussiana Meisner (Thymelaeaceae), while the host ant belonged to the genus Acantholepis (Hymenoptera: Formicidae). A plea is made for the conservation of this species.
A technique for measuring water loss across small areas of insect cuticle has shown that transpiration through Slifer's patches is significantly greater than that through the general integument in Locusta migratoria. Electron microscopic studies of the patches confirmed the absence of true endocuticle and revealed the presence of wide pore canals. Some features of the underlying cells suggest a fluid transporting function.