304 FAMILY VI. ACRIDID.E. THE LOCUSTS. 



c. Lobes of mesosternum longer than broad, their inner margin 

 straight; side margins of metazona rounded; size larger, the 

 tegmina of female 30 or more mm. in length; subgenital plate 

 of male with a distinct U- or V-shaped notch at apex. 



Tribe III. SCHISTOCERCI, p. 310. 



cc. Lobes of mesosternum transverse, their width at least equal to 

 the length, their inner margins usually rounded; side mar- 

 gins of metazona angulate; size smaller, the tegmina rarely 

 over 25 mm. in length; apex of subgenital plate of male with- 

 out notch. Tribe IV. MELAXOPLI, p. 320. 

 Tribe I. ROMALI. 



Very robust species, having the vertex flat, triangular, ad- 

 vanced in front of eyes a distance equal to two-thirds the inter- 

 ocnlar width, its median carina and foveohe wanting, the margins 

 raised, rather sharp, meeting in front at an obtuse angle; antennae 

 acuminate, the joints very distinct, more or less flattened; pro- 

 notum with median carina distinct throughout, cut three times by 

 the transverse snlci, prozona tectiform, metazona flat; tegmina 

 and wings not over three-fourths the length of abdomen. One 

 genus represents the tribe in the southern States. 



I. ROMALEA Serville, IS.'U, 280. (Gr., "strong of body.") 



In addition to the characters of the tribe, this genus has the 

 face nearly vertical ; frontal costa prominent, compressed, its sides 

 converging above the antenna?, deeply sulcate from near its junc- 

 tion with vertex to below the ocellus; pronotum with front mar- 

 gin snbtruncate, prozona one-third longer than metazona, the lat- 

 ter with hind margin prolonged, obtuse-angulate; lateral carina? 

 distinct but obtuse on metazona, obsolete on prozona ; lateral lobes 

 longer than deep, their front margin subvertical, hind one strong- 

 ly oblique, lower one with posterior half straight, its hind angle 

 obtuse, front half ascending; tegmina with humeral and anal 

 veins very strong, the others weak ; hind femora rather slender, 

 exceeding the abdomen in both sexes; prosternal spine prominent, 

 acute; abdomen carinate above; subgenital plate of male triangu- 

 lar, shorter than the preceding segment, its apex emarginate; 

 valves of ovipositor large, strongly exserted. The genus is repre- 

 sented by one species, dimorphic in color, and therefore known 

 under several names. 



131. ROMALEA MICROPTERA (Beauvois), 1805, 146. Southern Lubberly 



Locust. 



General color of adults of typical form dull yellow; disk of pronotum 

 clouded with fuscous: tegmina yellow with numerous scattered black dots, 

 the apical two-thirds of discoidal area rosaceous; wings bright carmine 

 red, the apical border black: apical half of antenna?, knees and sides of 



