LOCUSTlDJi. 447 



curved, testaceous towards the base, a little longer than the abdomen. 

 Legs stout ; hind femora three- fifths of the length of the fore wings. Fore 

 wings narrow, longer by one line and a half than the hind wings; areolels 

 large ; scapular vein and externo-medial approximate and parallel to each 

 other, connected towards the tip. Hind wings blackish, wiih a narrow 

 cinereous border; longitudinal veins tawny; transverse veins white. 

 Length of the body 13 lines ; expansion of the fore wings 33 lines. 



a. Oajaca. From M. Salle's collection. 



24. MERONCIDIUS TENEBROSUS. 



Fcem. Tesiaceus; caput fuscescente *septem-vitlatum, labro flavo ; 

 antenna fusco fasciatce ; prothorax scaber, nigricante trivittatus ; 

 abdominis dorsum fulvum testaceo conspersum ; oviductus niger, basi 

 teslaceus ; pedes robusli, fusco plagiali out fasciati ; alee anlicce 

 cinerea, angustce, fusco maculatce ; alee posticce nigricantes, sectoribus 

 transversis albidis. 



Female. Testaceous. Head smooth, with seven brownish stripes, of 

 which the middle one is extremely broad ; labrum yellow. Antennas with 

 many brown bands. Prothorax scabrous, with three irregular blackish 

 stripes and with two strongly impressed transverse lines. Abdomen above 

 tawny, thickly speckled with pale testaceous. Cerci pale testaceous, 

 slightly curved. Oviduct black, slightly curved, testaceous towards the 

 base, as long as llie abdomen. Legs stout, with several brown blotches or 

 irregular bands; spines with black tips; hind femora with rather more 

 than two-thirds of the length of the fore wings. Fore wings cinereous, 

 narrow, shorter by two lines than the hind wings, with many brown spots, 

 some of which are connected in the disk ; areolets rather large, mostly 

 regular. Hind wings blackish ; longitudinal veins black ; transverse veins 

 whitish. Length of the body 15 lines; expansion of the fore wings 

 35 lines. 



a. Oajaca. From M. Salle's collection. 



25. MERONCIDIUS INFICITUS. 



Mas et foem. Fulvus ; caput testaceum, antice flavum, carinis fuscis ; 

 antenna picece ; prothorax scaber, marginibus anlico et postico vittis- 

 que duabus interrupts nigris ; styli subclavati ; oviductus rectus, 

 apicem versus niger,abdominemidto brevior ; pedcsrobusti,femoribus 

 anticis nigricante trifasciatis ; alee anticce breviusculce, pallide 

 cinerece, albido reticulata,fulvo venosce, fusco postice maculatce ; alee 

 posticce nigricantes, breviores, venulis transversis albis. 



Male and female. Tawny, with the usual structure. Head testaceous, 

 smooth, with two brown keels which are approximate in front, where they 

 are contiguous to the brown projection of the front; fore part yellow, 

 smooth. Antennae piceous, tawny towards the base. Pic ; thorax scabrous, 

 with two irregular more or less interrupted black stripes and with two 

 transverse strongly marked impressed lines; fore border, hind border and 

 the hind part of each side border black; an occasional blackish mark 

 adjoining the fore border. Cerci obtuse, much thicker in the male than in 

 the female. Subgenital lamina with subclavate styles. Oviduct straight, 



