a Male (seven follicles) and b female (seven ovarioles) reproductive systems of Arocatus longiceps Stål, 1872 (Lygaeidae). Abbreviations: t – testis, vd – vas deferens, vs – vesicula seminalis, mg – mesadenia, b – bulbus, mt – malpighian tubule, d – ductus (spermatheca and accessory glands were not visible in females).

 
 
  Part of: Grozeva S, Stoianova D, Konstantinov F, Simov N, Kuznetsova VG (2022) A synopsis of the numbers of testicular follicles and ovarioles in true bugs (Heteroptera, Hemiptera) – sixty-five years of progress after J. Pendergrast’s review. ZooKeys 1136: 71-123. https://doi.org/10.3897/zookeys.1136.96431