LOCUSTID^. 445 



15. Meroncidius Mexicanus. 

 Acanthodis Mexicana, Sauss. Rev. Zool. 1859, 207. 



Mexico. 



16. Meroncidius Aztecus. 



Acanthodis Azteca, Sauss. Rev. Zool. 1859, 207. 



Mexico. 



17. Meroncidius Toltecus. 



Acanthodis Tolteca, Sams. Rev. Zool. 1859, 207. 



Mexico. 



18. Meroncidius eeginus. 



Acanthodis regina, Sauss. Rev. Zool. 1859, 207. 



Mexico. 



19. Meroncidius conspersds. 



Meroncidium conspersum, Scudder, Proc. Bost. Soc. Nat. Hist. xii. 



Napo or Maranon. 



20. Meroncidius subguttaxds. 



Mas. Fulvus, sal gracilis ; caput sublilissime ruyulosum, verticis disco 

 nigricanle ; prol/mrax rugulosus, viltis duahus nigris sat latis, 

 margine aniico subangulalo ; lamincB suhgenitalis slyli nigri, longi, 

 lineares ; pedes robusti, brevinsculi, piceo nebulosi ; aUe anlicce fnsco 

 maculatm, albidn-testaceo reticulata ; alee poslicce nigricantes, 

 hreviores, areolis cinereo maculalis. 



Male. Tawny, rather slender, paler beneath. Head very finely 

 rugulose; disk of ihe vertex blackish. Eyes testaceous, very prominent. 

 Prothontx rugulose, with two transverse impressed lines and with two 

 rather broad black stripes; fore border slightly angular; hind border 

 slisbtly rounded. Sub^;enital lamina elongate, with two long black slender 

 cylindrical styles. Legs stout, rather short; femora and tibia mottled with 

 piceous; spines wiih black tips. Fore wings longer by one line and a half 

 than the hind wings, with many small pale biown spots; reticulation 

 whitish testaceous; interior border interruptedly blackish. Hind win^-s 

 blackish, with a cinereous spot in each areolet; veins tawny; transverse 

 sectors blackish. Length of the body l.'i lines; expansion of the fore 

 wings 26 lines. 



a. Jamaica. From Mr. Gosse's collection. 



21. Meroncidius macularis. 



Foem. Viridis, robiistus ; caput aiitice albidum; antennce pallide 

 testacecB, basi fuscescentes ; oviductus testaceus, abdoinine paullo 

 longior, dimidio apicali nigra ; alee posticce nigricantes, pallida 

 niaculatce. 



Female. Green, stout, testaceous beneath. Fore part of the head 

 mostly whitish. Eyes testaceous, round, prominent. Aiilennae pale testa- 

 ceous, brownish al the base. Prolhorax smooth, with two transverse 



