OF THE AMAZON VALLEV. 559 



Var. 7. H. rdalrica, Cramer, I.e. t. 207. 1". B. 



" Para" (Cramer). Taken prol)al)ly somewiiere on tlie banks of the ijowcr Amazons, 

 as no trace of any of these forms exists at I'ara. 



These tlirce varieties (5-7) seem to be intermediate between II. Melpomene and //. Vesta. 

 I once took a 5 Enjthned in copula \\\W\ a c? Meliunnene. II. T'esln wouhl appear, from 

 this, to be descended from the same stock as IF. Thehviojie. It lias, liowrvcr, rcec(l<'d, 

 as a form, further from the common parent than //. T/ie/.riope, and has ac(iuircd a 

 much wider rani^^c. 



Var. 8. H. Tyche, nol). 



Fore winif as in var. '1, viz., black, with the basal third and a broad belt across the 

 middle rosy rcnl, lea\'intj a narrow black intermediate space. Tiie liind wing above and 

 beneath is precisely as in II. ThcLci(q)e. 



Tak(m at Serpa. 



Var. 9. //. lIip/)o/>/fe, nol). 



Fore wini,' l)lack; the basal fourth and a narrow obli<pie belt crossiiiti- the winir 

 beyond the cell, from the costa nearly to the bind aiiiile, rosy red; there is also a yellow 

 spot on the costa, on the inner side of the red belt, and another obscure one within tlie 

 cell. Bcneatli, the same. Hind wing', above ami beneath, as in H. TheLriope. 



Serpa and banks of the Tapajos. 



The approximation towards H. ThcLciope in this and the j)receding variety is very 

 considerable. 



Var. 10. H. Cnhele, Cramer, Pa]). Exot. t. 188. f. A. 



Serpa. In this beautiful variety the foi'c wing has tlio arrangement oi' yellow spots 

 very similar to that of //. Tlicl.ciope; but the liiiul wing is black, as in H. Melpjomene, 

 with the exception tliat tiicre is a red si)()t at the base. 



18. ilKi.K'ONirs TiiEi.xioi'i:, llubnor. 



Nereis /estiva Thelxiope, Iliibn. Samml. Exot. Schmctt. 



Very abundant at Pani and on the banks of the Tocantins, also on the Tpjier Amazons, 

 from the mouth of the ]\Iadeira to Peru. The geographical position of the complete 

 chain of transition-forms just enumerated seems to show that //. TheLriope originated 

 in a variety of //. Jlefponieue, which was naturally sel(>cted out of the many that arose 

 in the species on its descending into moist areas, as being belter adajited to the humid 

 forests of the Amazon plains than the parent form. It varies nmch in the slia|)e and 

 position of the yellow spots of the fore wing, but the most general form is that figured 

 by Ili'ibner. 'i'he followiiiii- are the more ini|)ortant varieties. 



Var. 1. 11. A;/l(iope, Feldcr, "Wiener Kntomologisch(> ^Monatsschrift, 18(52, p. 71). 



Differs from 77. Thelxiope, lliibner, in having simjily a narrow, oblicpie, slit,'litlv curved, 

 ycUow macular belt, consisting of seven spots, which crosses the fore wing considerabh- 

 bcTond the cell. 



VOL. XXIII. 1 |. 



