Water composition and loss by body color and form mutants of the German cockroach (Dictyoptera: Blattellidae)

Species of Euglossa (Glossura) in the Brazilian Atlantic forest, with taxonomic notes on Euglossa stellfeldi Moure (Hymenoptera, Apidae, Euglossina)

“…Abbott & Svensson 2005) and may be associated to the insect physiology, as in water balance (e.g. Appel & Tanley 1999). The color variation described here in Euglossa is an interesting feature to be focused in future behavioral and physiological studies.…”

Reproductive strategies of two forms of flightless males in a non‐pollinating fig wasp under partial local mate competition

“…Darkening of the insect cuticle follows a moult and results from sclerotisation and melanisation (Andersen et al, 1996). One of the major functions of the cuticle is to reduce water loss from the body (Schwarz & Moussian, 2007) and darker coloured insects are typically more desiccation resistant, as demonstrated in Blattella germanica (Appel & Tanley, 1999) and several Drosophila species (Parkash et al, 2008;Singh et al, 2009). Melanin production requires amino acids (Blois, 1978), and life-history costs associated with increased melanin production have been identified (Windig, 1999).…”

Water balance profiles, humidity preference and survival of two sympatric cockroach egg parasitoids Evania appendigaster and Aprostocetus hagenowii (Hymenoptera: Evaniidae; Eulophidae)

“…There was no significant correlation between CP and initial mass for each sex of each parasitoid wasp, indicating that the use of Meeh's formula provided unbiased estimation of the body surface area and CP values of these parasitoids. The %TBW loss rate was derived from the slope of the linear regression y = a + bx between cumulative %TBW loss and desiccation time (h), where y = cumulative %TBW loss, x = desiccation time (h), a = intercept at y-axis, and b = slope (%TBW loss h À1 ) (Appel and Tanley, 1999).…”