460 BHOPALOCERA. 



Messrs. Butler and Druce described this species from a single female example 

 sent by Van Patten from Costa Rica, and we have since received a considerable series 

 of it from various localities ranging from Mexico to Panama. In Colombia and 

 Venezuela its place appears to be taken by Helias noctua, described and figured 

 by Felder in the Voyage of the ' Novara.' H. noctua, however, may readily be 

 distinguished by the inner margins of the secondaries beneath being marked with 

 greyish-white. 



The male genitalia have a long slender tapering tegumen, which is curved downwards 

 and is blunt at the tip : the harpes are short and broad, divided into two overlapping 

 lobes of nearly equal width ; they are formed almost exactly as in T. noctua. (See 

 Tab. XCI. fig. 32.) 



3. Theagenes stator, s P . n. (Tab. XCI. figg. 33, 34, 35 s .) 



Alis griseo-fuscis, maculis vehitinis nigris marmoratis ; anticis punctis duobus in costa subapicalibus hyalinis : 



subtus fuscis, anticis maculis parvis ad apicem, posticis prsesertim in dimidio distali rufo-fulvis. 

 2 mari similis. 



Hab. Mexico, Amula (H. H. Smith), Misantla (F. D. G.), Cordova (Bumeli), Orizaba 

 (ff. H. Smith & F. D. G.), Atoyac (H. H. Smith & Schumann), Fortin, Teapa (H. II 

 Smith), Valladolid in Yucatan (Gaumer); Guatemala, Forests of Northern Vera Paz, 

 Chisoy Valley, Polochic Valley, San Geronimo (F. I). G. & 0. S.), Cahabon, Panima, 

 Chilasco, Duenas (Champion) ; Nicaeagua, Chontales (Belt) ; Panama, Chiriqui, Veraguas 

 (Arce). — Peru. 



We have several specimens in our collection from Colombia and Venezuela agreeing 

 with Felder's T. hcematospila as figured in the Voyage of the ' Novara,' and we had 

 placed oar Central- American insects, of which we have upwards of thirty, with them. 

 On a closer examination, however, we find that the red spots on the apex of the 

 primaries and on the secondaries beneath, of the Venezuelan and Colombian insects, 

 are so much larger and brighter in colour that there is no difficulty in distinguishing 

 the two forms. Moreover, the costal fold on the primaries of the males, which, though 

 small in T. stator, is always present, appears to be absent in all our examples of 

 T. hwmatospila. We also notice that the outer margin of the secondaries is more 

 dentate in T. stator. The genitalia of the two species are nevertheless almost exactly 

 alike, thereby showing their close relationship. Hence we think our Central- American 

 insect requires the distinguishing name we have bestowed upon it. 



Dr. Staudinger has sent us two male specimens from Peru which have small 

 spots on the underside and likewise a distinct costal fold, and we therefore associate 

 them with T. stator. 



In the British Museum there are two examples under the name of T. hcematospila, 

 one with large red spots, the other with small spots and similar in marking to T. stator] 

 both said to have been procured by Dyson in Venezuela. The Hewitson collection 



