22 EHOPALOCEEA. 



Cramer in describing this species applied the name atys to a male of T. polybe and a 

 female of the present species ; it is upon the female, therefore, that the title rests. The 

 underside of the male was figured by Hewitson from an Amazon specimen in his own 

 collection 2 , from which source we also have examples. With these several specimens 

 from the State of Panama agree very closely ; the underside of the wings, however, is 

 generally darker owing to the interspaces between the nervures being of a darker shade, 

 but the difference is hardly specific. Our figure represents a male from Bugaba. 



24. Thecla aufidena. (Tab. L. figg. 1, 2 e , 3 $ .) 



Thecla aufidena, Hew. 111. Diurn. Lep. p. 117, t. 47. ff. 213, 214 1 ; Boisd. Lep. Guat. p. 15 2 . 

 Thecla jalan, Reakirt, Pr. Ac. Phil. 1866, p. 335 3 ? 



3 alis intense cyaneis extus anguste nigro marginatis ; anticis stigmate duplici ad cellulse finem ; posticis lobulo 

 anali rufo atomis albis notato : subtus fuliginosis, anticis lineis tribus transfasciatis omnibus abbreviatis, una 

 per cellulam reliquis submarginalibus, macula ad basin costse rubra ; posticis lineis septem albis ab angulo 

 anali radiantibus, extima submarginali obsoleta, duabus intimis confluentibus, angulo anali rubro, albo 

 atomato et nigro marginato, lobulo anali ipso nigro ; fronte et pectore rubris. 



2 alis albican te-cseruleis ; anticis costa late et margine externo fuscis ; posticis quoque extus fusco marginatis, 

 lineola submarginali alba, angulo anali rubro albo atomato. 



Hab. Mexico 2 , Presidio near Mazatlan (Forrer), Oaxaca (Fenochio), Valladolid in 

 Yucatan (Gaumer) ; Beitish Honduras, Corosal (Roe) ; Guatemala, Polochic valley 

 (F. D. G. & 0. S.), Chacoj, Teleman, Panzos, Cahabon, Chiacam, Panima, San Geronimo, 

 Duefias, Zapote (Champion) ; Honduras 2 , Coban (Von TurcTcheim) ; Nicaragua 1 , Chon- 

 tales (Belt, Janson) ; Panama, Chiriqui, Calobre (Arce), Lion Hill (M'Leannari), Colon 

 (Boucard). 



This species is allied to T. battus of Cramer, from which, however, it may be readily 

 distinguished by the much greater intensity of the blue colouring of the wings. 

 T. aufidena was described from Nicaraguan specimens, but we now know it as a common 

 insect throughout our region from Southern Mexico to Panama, in which wide area 

 we trace no tendency to vary, Mexican and Panama examples being absolutely alike. 

 On passing into South America T. battus immediately takes its place in Colombia, 

 and thence spreads through Venezuela to Guiana. The description of Thecla jalan 3 

 suits the female of this species fairly except that the upper surface of the wings is 

 glossed with blue and not black (possibly a misprint for blue !). Under this uncertainty 

 we continue to use Hewitson's name, though perhaps not the oldest. Our figures 

 represent a male from Panima and a female from Dueiias. 



25. Thecla phaleros. (Tab. L. figg. 4, 5 s , 6 $ .) 



Papilio phaleros, Linn. Syst. Nat. i. p. 796 \ 



Cycnus phaleros, Hiibn. Verz. bek. Schmett. p. 81. 



Thecla phaleros, Hew. 111. Diurn. Lep. p. 85 2 ; Boisd. Lep. Guat. p. 16 3 . 



Papilio silenus, Cr. Pap. Ex. t. 282. E ( ? )\ 



