102 , RHOPALOCEKA. 



So far as we know, this pretty species is restricted to the highlands of Guatemala. 

 We used to find it not unfrequently on the road skirting the flank of the volcano 

 between Duefias and Calderas, and Mr. Champion also found it in the same place at an 

 altitude above the sea of 6000 to 7000 feet ; he also took specimens on the ridge above 

 Cubulco, the mountains above Quiche, and on the high ridges of Chilasco in Vera Paz. 

 It flies near the ground, and is frequently found settled on pig's dung. 



A Chilasco specimen is figured. 



LYOENA. 



Lyccena, Fabricius in 111. Mag. f. Ins. vi. p. 285 (partim). 



Thirteen species of Lyccena occur within our limits, but of these four are probably 

 only found along our frontier in the northern States of Mexico. Four other northern 

 species also enter our fauna— L. marina reaching as far south as Guatemala, L. exilis 

 Venezuela, and L. isola and L. comyntas Costa Rica. Three southern species of 

 wide range extend to Mexico, viz. L. hanno, L. cassius, and L. tulliola. There remain 

 two that have not yet been detected beyond our limits, viz. L. zachceina, which is 

 found from Central Mexico to Costa Rica, and L. gozora (a form of L. argiolus), having 

 much the same range, but spreading a little further south into the State of Panama. 



It will thus be seen that Lyccena is not nearly so strongly represented in Mexico and 

 Central America as it is in countries lying further to the northward. As we proceed 

 further south the paucity of the species becomes still more apparent ; but there are 

 several peculiar Andean species and others in Chili which do not come within our 

 range. 



Lyccena has been divided into many genera, not only in the Old World but also in 

 America ; but their value requires careful testing and a comparison instituted between 

 New- and Old- World forms, so that the whole may be brought into something like a 

 harmonious system. Whether this had best be done under a large or small number of 

 generic names remains to be seen ; and as we cannot here undertake the solution of the 

 question, we place all the species that concern us under the comprehensive title of 

 Lyccena. 



From our dissections we note the following points which seem worthy of record : — 



In L. exilis the first subcostal branch becomes merged in the costal nervure. In 

 L. comyntas this branch coalesces with the costal for part of its length, and then diverges 

 again towards the margin. In all the other species we have examined this branch 

 remains free throughout its length. 



Regarding the secondary male organs, our preparations hardly give satisfactory results ; 

 being made from dried specimens, the parts are so displaced as to make it difficult to 

 trace their outline. So far as we can see, L. exilis is most divergent in this respect ; 

 L. acmon and L. isola are somewhat alike, and resemble the Old- World L. corydon ; 



