leaf vein and wing vein, vintage engraving

anal ancient antique art artwork black branch branching costa crossconnection cubitus dichotomous drawing engraved engraving etching fanveined featherveined illustration insect intercalary leaf longitudinal media old palmatenetted palmateveined parallelnerved parallelribbed parallelveined penninerved penniparallel penniribbed penniveined picture pinnatenetted plant radius ramification reticulate subcosta tissue vascular vector vein veined venation vintage white wing