( 409 ) 



? . Vaginal plate small, triangular, with the edges somewhat incrassate ; 

 orifice basal, mesial ; no special armature. 



Earl}- stages not known. 



Ilab. Central and .South America. 



Kive species. 



This geuns is not nearly related to Pi'rii/onid and Si/rery:t, with wiiich it has 

 generally heen confounded. The peculiar tnl'ted scaling of the hindleg is tlic most 

 salient feature ))y which Pachi/gonia can at once be recognised. 



Key to the species : 



II. Hindwing with reddish or clayish bands 

 Hindwing with a trace of reddish lines only at 

 anal angle ...... 



b. Forewing sinuate at apex or truncate 



Forewing pointed at apex .... 



r. Forewing above with an obvious clayish sub- 

 marginal patch below apex, bands of hind- 

 wing obscure, at least in front . 

 Forewing above witliout obvious clayish sub- 

 marginal patch, bands of hindwing clearer 

 red, a third (median) band vestigial . 

 (I. Bands of hindwing obscure .... 



Bands of liiudwing clearly marked pinkish red 341. P. drucei. 



338. Pachygonia subhamata. 



*P,n,/oiii,i Kiihhaiimtu Walker, List Lep. Ins. IS. M. viii. p. lO'.'. n. 4 (18oG) (partim, (J not ? ; 



Para ; Venezuela ;— Mus. Brit.) ; Clem., Pro<-. Ac. Nal. Sr. Phil, id. iv. p. 1.38. n. li; (18.09) 



(partim); Morri.s, Cat. Lej). N. Am. p. 17 (1800) (partim); Clem., in Morris, Syn. Lep. N. Am. 



p. 160. n. 2 (1862) (partim) ; Butl., Tram. Zool. Snc. Limil. ix. p. 53.3. n. 1 (1877) ; Druce. 



B'loL Centr. Amer., Lep. Het. i. p. 4. n. 1 (1881) (partim; Chiriqui) : Kirby, Cat. Lip. IJet. i. 



p. G37. n. 1 (1892) (partim ; Mexico to Venezuela). 

 .Mdiriigloxsii (//fimileii Schaufuss, Xmiq. Otias. i. p. 20 (1870) (Venezuela). 

 Perifjiiiiia raliiji>ii}.ia, Boisduval, Coii,^. Lep. (Tiinfniid'n p. GO (1870) (partim) ; it)., Sjiir. f.'<'<i. Lrji. 



Hit. i. p. 324. n. 7 (1875) (partim). 

 Perii/onUi nimernd Boisduval, C'on.«. Lep. Guiitenidla p. 00 (1870) (muu. mn.r. snjien-iic). 

 Perigoiiia ii/mriid id., Sj'ec. Gen. Lep. Het. i. p. 324. n. 7 (187o). 

 Perif/miia griiiidis id.. I.e. (tiom. max. supervaeuum). 

 ParlnjVia snhtnnmita (!), BOnninghausen, IriK xii. p. 119. n. 30 (1899) (Rio de Jan.). 



c? ? . Apex of forewing sinuate between SC^ and SC" ; distal margin concave 

 l)etwecn i>V'' and W, convex at R- but not augnlate ; the clayish grey submarginal 

 patch R' — R- distinct, the species differing in this respect from hopjferi, in whicli 

 the patch is indistinct ; bands of hindwing huffish pink, more or less shaded with 

 brown, the pink tint mostly not prominent, most obvious in specimens from 

 Espirito Santo. Hindtarsus in this and the three following species with a ventral 

 crest only on the first segment, and a dorsal crest on segments 1 to 3. 



<?. Tenth tergite gradually narrowed, apex abruptly hooked (PI. XLIV. 

 f 15. IT) : sternite narrowed towards end, slightly spatnlate. Clasper nearly as 

 in hopfferi ; harpe also almost the same, but the process smaller, more spatnlate. 

 Process of penis-sheath (PI. LIII. f. 29) curved, the right edge minutely serrate. 



Hab. Central and South America. 



In the Tring Museum 5 t^c?, 3 ?? from: Mexico; San Pedro Snla, 



