Fig. 3From: Comparative analysis reveals the complex role of histoblast nest size in the evolution of novel insect abdominal appendages in Sepsidae (Diptera)Themira biloba larval epidermis (a) with ventral histoblast nests in abdominal segments enlarged showing a sexually dimorphic increase in nest size, cell number, and cell density peaking in the 4th abdominal segment (b-h). The 4th female histoblast nest is not significantly larger than nests in other segments and is shown for comparison (i). Scale bars indicate 500 μm (a) and 25 μm (b-i)Back to article page