CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS I07 



ORDER ORTHOPTERA (LOCUSTS, GRASSHOPPERS AND CRICKETS) 



FAMILIES 



A. Antennse shorter than body.— Acridid(e (Locusts or Short-horned Grass- 

 hoppers) . 

 AA. Antennae longer than body. 



B. Tarsi 4-Jointed. — LocuslidcB {Long-horned Grasshoppers), 

 BB. Tarsi 3-jointed. — Gryllidm {Crickets). 



AcRiDiD^ (Locusts or Short-Horned Grasshoppers) 

 Sub-families, Genera and Species (Figs. 61-63). 



Sub-families: 



A. Pronotum extending over abdomen; claws of tarsus without pulvillus; 

 size small. — Teltigince. 



ppH- 



cer 



-fq.pl 

 oyp. 



Pig. 61. — Abdomen of female Melanoplus bivittatus. A, lateral view; B, 

 dorsal view; C, central view; D, egg guide; au., the auditory organ; sp., spiracle; 

 ovp., ovipositor; g.pl., genital plate; p. pi., podical plate; cer., cercus. {After Lugger.) 



AA. Pronotum not extending over abdomen; claws of tarsus with pulvillus; 

 size larger. 



B. Prosternum with tubercle. — Acridince. 

 BB. Prosternum without tubercle. 



C. Vertex and front of head meeting at an acute angle. — Tryxalincs. 

 CC. Vertex and front rounded. — (Edipodina. 



