Robberflies of the Genera Promachus and Proctacanthus
Published in Annals of the Entomological Society of America, in 1911, in volume 4, issue 2, pages 153-172
Date published:1911
Published in Annals of the Entomological Society of America, in 1911, in volume 4, issue 2, pages 153-172
Date published:1911