GENUS CASTNIA AND SOME ALLIED GROUPS. 193 



Hopeian Collection, are concolorous, and not clothed with black scales as in tlie Brazilian 

 specimens ; and the marginal spots near the outer angle of the hind -nings are much 

 shorter than in the latter, wliilst the small dots near the anal angle are reduced to a very 

 few scales. In the four Hopeian specimens, with pale veins in the disk of the hind wings, 

 the pale markings are less strongly yellow than in the Brazilian ones ; and in the Ama- 

 zonian male above noticed the two apical spots of the terminal macular fascia are mucli 

 larger than the three following, whilst the three next are reduced to minute dots, the 

 one close to tlie inner angle being as large as the 3rd to 5th. Thus neither in size, 

 shape, nor markings can we specilically distinguish between the specimens of this 

 species. 



68. (13) Castnia ace^oides. C. alis anticis fuscis basi magis lutescentibus, medio fulvo 

 tinctis ; venis omnibus dilute nigris, strigis longitudinalibus obscurioribus inter 

 venas fasciaque obliqua albido-ocliracea e costa ultra medium, versus mediuin 

 marginis apicalis extensa ; alis posticis aurantiaco-rutis, venis limboque apicali intus 

 dentato nigris, hoc serie macularum parvarum (subtus multo majorum) flavarum 

 notato. Long. corp. unc. Ij. Expans. alar. ant. unc. 3 lin. 1. 



Castnia acrceoides, Boisduval, Sp. Gen. Lep. i. pl. 14. f . 1 ; H. n. Lep. Het. p. 540; Guerin, Icones R. 



An. Ins. pL 83. f. 4 ; Griffith, An. K. Ins. pl. 53. f. 4 ; Gray, Trans. Ent. Soc. L. ii. p. 148 ; Walker, 



List Lep. Het. B. M. i. p. 32. 

 Castnia actinophorus, Kollar, Lep. Brasil., Ann. Wien. i. p. 215, pL 12. f. 2; Walker, List Lep. B. M. 



i. p. 29; Boisduval, H. n. Lep. Het. p. 520; " Gray (in Ann. Kingd.) as C. acrceoides," Ericlis. 



Berichte, 1839. 



Ilab. Brasilia. In Mus. Britann., Hopeiano Oxonige, BoisduvaL 



This species bears so close a resemblance to Acrcea thalia as often to be mistaken for 

 it. Boisduval states that its larva feeds on certain species of Bromeliacese. 



It is surprising that Mr. Walker should not have perceived from Kollar's excellent 

 figure that C. actmophorus (placed by Walker in his section 1 of subdiv. 2) is identical 

 with C. acrceoides of Boisduval, which he places in his section 3. Deceived by this error, 

 Dr. Boisduval, who, like Walker, simply repeats or translates Kollar's character of 

 actinophorus *, has also given the new supposed species as distinct, placing C. actino- 

 phorus in the genus Castnia, and C. acrceoides in that of Orthia. 



Genus II. Orthia, Boisduval (pars). 



Alae magnse, latse ; anticEe subtrigonse, cellula discoidali aperta, loco venae disco-cellularis tantum crassitie 

 minuta nodiformi ramorum bo*et c 3* indicato, ramo supero discoidali {b 5*) e vena postcostali 

 pone cellulam emisso, cellula nulla accessoria postcostali : alee posticse cellula angusta dimidiata vena 

 mediana connexa, cellula ordinaria aperta: abdomen alas inferiores haud postice superans. 

 (Plate XXIX. figs. 16, 17 1-) 



* " Alis anticis nigris radiia plurimis viridi-fusois, basi fasciaque abbreviata dUute flavis : posticis luride rubris, 

 radiis limboque nigris, hoc flavo maoulato. Long. corp. lin. 9-12. Exp. alar. ant. lin. 27-33." 



t In figuie 16 the small lettering of the two branches h 5* and c3* is placed too liigh — the former branch, which 

 looks like the terminal branch of the postcostal vein, and the latter braneh, which looks like a fourth branch of the 



