Volesus nigripennis, male 20–23 ventral view 20 head and thorax 21 prothorax, arrow points to prosternal process 22 prothorax and mesosternum 23 metasternum, middle and hind coxae, and median portion of base of abdomen 24, 25 apices of tibiae, arrow points to spongy fossa 24 fore tibia, ventral view 24 middle tibia, lateral view. Scale bars: 1.0 mm (20, 23–25) 0.5 mm (21, 22).

 
 
  Part of: Gil-Santana HR, Oliveira J (2019) First description of the male of Volesus nigripennis Champion, 1899, with new records from Ecuador and Panama, taxonomical notes, and an updated key to the genera of Sphaeridopinae (Hemiptera, Reduviidae). ZooKeys 841: 97-123. https://doi.org/10.3897/zookeys.841.31153