LOCUSTID,E. 453 



mate, united near the tip. Hind wings cinereous ; veins tawny. Length 

 of the body 14 lines; expansion of the lore wings 42 Hues. 



a. Bogota. From Mr. Stevens' collection. 



37. MERONCIDIUS INORNATUS. 



Mas. JFulvus, sat robuslus ; caput testaceum, labro albido-testaceo ; 

 prothorax subtililer luberculatus ; pedes robusti; alee anticce cinerece, 

 sat angustce, testaceo reticulate, fulvo venosce; alee postiae obscure 

 cinerece, 



Male. Tawny, rather stout. Head testaceous ; front thinly punctured ; 

 labruni whitish testaceous. , Eyes tawny, round, very prominent. Pro- 

 thorax minutely tuberculaie, with two strongly impressed transverse lines 

 and with a very indistinct longitudinal impressed line. Legs stout; spines 

 with black tips; hind femora about two-thirds of the length of the fore 

 wings. Fore wings cinereous, rather narrow, longer by one line and a half 

 than the hind wings ; veins tawny ; reticulation pale testaceous ; scapular 

 vein and externo-medial parallel till near the tip, where the former 

 diverges to the costa; tympanum pellucid in the right wings, brown in left 

 ones. Hind wings dark cinereous; veins tawny. Length of the body 

 18 lines; expansion of the fore wings 43 lines. 



a. Monte Video. Presented by C. Darwin, Esq. 



Var. ? Fcem. Piceus ; caput fulvum, clypeo piceo ; antenna nigrce; 

 prothorax tuberculatus,flavo marginatus ; abdomen sordide olivuceum, 

 segmentis ventrulibus viridibus nigro marginatis ; oviduclus niger, 

 basi testaceus ; pedes robusti, tarsis sitbtus nigris ; alee anticce fulvce, 

 costa pallideflava ; alee postic<e obscure cinerece. 



Female. Piceous, with the usual structure. Head lawny, minutely 

 punctured; clypeus piceous. Eyes blackish, prominent, nearly round. 

 Antennae black. Prothorax tuberculate, with a smooth pale yellow rim 

 and with two strongly impressed transverse lines ; a longitudinal impressed 

 line apparent only where it intersects the hinder transverse line. Abdomen 

 dingy olive-green ; under side black, the disk of each segment green. 

 Oviduct black, hardly curved, testaceous towards the base, as long as the 

 abdomen. Legs stout; spines with black tips; hind femora a litile less 

 than two-thirds of the length of the fore wings ; tarsi black beneath. Fore 

 wings tawny, longer by two lines than the hind wings; areolets large; 

 costa pale yellow; scapular and externo-medial approximate and parallel 

 to each other till near the tip, where they are ramose. Hind wings dark 

 cinereous; longitudinal veins tawny; transverse veins blackish. Length 

 of the body 21 lines; expansion of the fore wings 51 lines. 



a. ? From Mr. Children's collection. 



Var.? Mas. Testaceus; antennae, picece, testaceo fas da tee ; prothorax 

 subtiliter tuber culatus ; styli subclavati ; pedes robusti ; alee anticce 

 angustee,nigricante subpunctatce, margine interiore nigricante-notato ; 

 alee posticee obscure cinereee. 



