Figs. 11-12 in Structure and development of the reproductive system in Aphelocheirus aestivalis (Hemiptera: Heteroptera: Nepomorpha: Aphelocheiridae)

Figs. 11-12. Male internal reproductive system (dorsal view). 11 – nymphal instar 5 (pharate imago before moulting; left testis and outflow ways omitted); 12 – mature adult (right testis and outflow ways omitted). Abbreviations: bm – bifurcation of paired mesodermal accessory glands; ect – unpaired ectodermal accessory gland; ed – ejaculatory duct; mes – mesodermal accessory gland; sv – seminal vesicle; tes – testis; tl – testicular follicles; ttl – proximal part of testicular follicles (= expanded vasa efferentia forming 'accessory seminal vesicles'); vd – vas deferens.