226 FAMILY VI.— LOCUST1D.42. 



long as the wings; pronotum as broad as long on top with 

 two transverse furrows; lateral carina well rounded, lobes 

 of sides parallel, with angles acutely rounded ; wings con- 

 cave; wing-covers longer than the hind wings, a little more 

 than twice as long as broad, and of almost equal width, 

 with the apex obtusely rounded. Anterior pairs of legs long 

 and rather stout, and well adapted for climbing; hind legs 

 almost twice the length and also stout. Supra-anal plate 

 longer than broad, and bluntly rounded at the tip ; sub-anal 

 plate of male very long, paddle-shaped, and grooved on the 

 upper side; ovipositor of female quite long and curved up- 

 wards beyond the middle. 



The members of this genus are at once distinguished from 

 all other Locustidas by the broad leaf-like form of the teg- 

 mina, which are longer than the wings, obtuse and rounded 

 at the end, and concave or hollowed within. The "shrill- 

 ins:" orijan of the male is brown in color with the central 

 portion as transparent as glass, and is set in a strong half- 

 oval frame. 



Cyrtophyllus concavus Harris. 



TRUE KATYDID. BROAD-WINGED KATYDID. 



This is the true Kat^-did. Wing-covers and thorax bright 

 dark green; head, legs and body much paler; hind wings 

 green and transparent. When the insect is at rest the wnng- 

 covers curve around the body, so that their edges touch 

 above and beneath ; pronotum roughly punctured and some- 

 what wrinkled ; head smooth. The main veins of the wing- 

 covers are very prominent with numerous reticulating 

 branches, giving that organ the appearance of a leaf. Pos- 

 terior femora short, slender and armed on apical half of 

 lower outer carina with about six small spines. The ovi- 

 positor is almost as long as the abdomen, cimeter-shaped, 

 sharp-pointed, and with but slight serrations on the lower 

 edge of apical third. Below the curved anal cerci of the 



