Gäde, G. (2002). "Sexual dimorphism in the pyrgomorphid grasshopper Phymateus morbillosus: from wing morphometry and flight behaviour to flight physiology and endocrinology". Physiological Entomology. 27 (1): 51–57. doi:10.1046/j.1365-3032.2002.00268.x. S2CID86444242.
Gäde, G. (2002). "Sexual dimorphism in the pyrgomorphid grasshopper Phymateus morbillosus: from wing morphometry and flight behaviour to flight physiology and endocrinology". Physiological Entomology. 27 (1): 51–57. doi:10.1046/j.1365-3032.2002.00268.x. S2CID86444242.