FIGURE 2 in The oldest aquatic aphelocheirid bug (Heteroptera, Nepomorpha) from the lower Eocene of India

FIGURE 2. Aphelocheirus spp., fossil and recent. A, Specimen GU/R/B/G/3015, ventral view. B, Aphelocheirus aestivalis Fabricius, 1794, ventral view. C, GU/R/B/G/3015, dorsal view. D, GU/R/B/G/3015, ventral view under negative effect light. White arrow: median furrow on mesosternum; yellow arrows: insertions of hind coxae; blue arrow: strong lateral spines; red arrow: sternite VI; white arrowhead: elliptical structures appressed to rosettes of 2nd sternite; red arrowhead: respiratory 'rosettes'. Scale bars = 1 mm.