Figs. 1-4 in A pair of basi-abdominal sex pheromone glands in the male of some burrower bugs (Hemiptera: Heteroptera: Cydnidae)

Figs. 1-4. Paraethus capicola (Westwood, 1837) (Geotomini), location of the male basi-abdominal glands. 1 – male adult in lateral view showing the site of the external opening of the glands and surrounding structures: stridulatory apparatus (plectrum and stridulitrum), anterior dorso-abdominal glands and metathoracic glands; scale bar: 5 mm. 2 – detail of the abdomen and location of the PBA gland ostiole; scale bar: 2 mm. 3 – internal view of the abdominal tergum, showing place of PBA glands and surrounding structures; scale bar: 2 mm. 4 – detail of the external opening on the pleural area in front of the sternite 3 and laterotergite 3, internal view; scale bar: 0.2 mm. Abbreviations: ap – apodeme; DAg – anterior dorso-abdominal gland; Lt – laterotergite; Mt – mediotergite; MTg – metathoracic gland; PBAg – pleuro basi-abdominal gland (ostiole); os – ostiole; pl – plectrum; S – sternite; sp – spiracle; se – setae; st – stridulitrum; tr – trichobothries; v – vestiges of the median and posterior dorso-abdominal glands.