102 THE entomologist's record. 



terminal one in the shorter examples. One inclines to suggest here 

 the question whether this lengthened fedoeagus implies any relation- 

 ship with the Theclids, which one would not perhaps do but for the 

 resemblance to the latter in the dark colour of the upperside of the 

 wings in both sexes, again indicating Theclid afKnities. Antcros and 

 isaarica have a very similar aeda^agus ; one doubts whether they belong 

 to Aricia, however, but require a separate generic position. 



Plebeiiis is not altogether dissimilar to Aricia in having the external 

 portion prolonged, but not so much so as in Aricia. The sedo'agus is 

 broader and stouter, and the outer portion tapers more rapidly, and 

 more evidently shows an opening (for the exsertion of the eversible 

 membrane) extending along nearly the whole side of the external 

 portion. It is here that one finds the j^dceagus giving a note more in 

 accordance with our notions of the genus than the other portions of 

 the appendages. These would place an/ us {aeijon) and ar(/iiro<i}i(iiiinn 

 in separate genera, but the }eda?agus places them together ; it also 

 separates from Aricia certain species whose claim to belong to that 

 genus consists in little beyond having comb-like teeth to the clasps 

 something like those of afiina {act/on). 



Another very definite form of a'dojagus is found in Tutt's genera 

 Cyaniris (^sei)iiar(ius), Albtdina (plieretes), and Latiorina {orbitidita). In 

 these forms the general aspect is not unlike that in I'oli/(>niiiiatiii< 

 (icartis), but the extremity has a special structure ; on its dorsal side it 

 has a process bent into the lumen of the tube, that has on dorsal view 

 a square end (see orhitulus), but on lateral view looks like a hook pro- 

 jecting inwards from the dorsal margin. It seems, however, to be a 

 thickening of the wall of the tube possibly straightened outward when 

 the eversible membrane is exserted. 



Vacciniina {optilete) does not agree with any of the other genera 

 very closely. It has a broad straight tube suddenly tapering at the 

 zone. 



There are some doubtful species, for example, eHnijiilnH seems to 

 be a riebeiits, but the }edo?agus is very short, and extremely so beyond 

 the zone ; alcedo and Incifera seem to belong to a separate genus 

 having unusually short and broad tedoeagi. 



CliiladcK has the jBdoeagus very like that of Aricia, but the clasps 

 here mark it oft" distinctly, the serrated end being on a comparatively 

 long neck. It may be noted that owjus has nothing to do with Cata- 

 chri/wiis, but it is a Plebeiid belonging, or close to, Chilades. 



Referring to the examples of each genus given on page 154 (vol. x.), 

 this classification by the structure of the a?d(ieagus alters the position 

 of some of the species. I'si/lnrita is not an Aricia, but is much closer 

 to, if not actually in, Poh/ouinuitiis : perseidtatta is not a (i/aniiis, but 

 & riebeiiis : escheri \s not a ['(dynnnnatiis, but an Af/riades : Hirsxtina 

 is indistinguishable from Ayriadcs : iiwleayer is a Polijo)ii»iatits. 



So far as my examination has gone, the great mass of Plebeiids 

 belong to the genus Ayriades. It includes the following forms, of 

 which I have not verified the correct naming of all examples, but I 

 believe there are few, if any, errors — actis, avianda, aec/af/rus, armena, 

 athis, celeatina, dai/iiiara, dania, damon, danione, eroides, erschoffi., 

 esclteri, ylaitcias, Itopff'eri, hi/las, ipldgenia, iiicsopotauiica, inithridatiSy 

 phyllides, pliyllis, poseidon, potithuiiiKS, siiperba. 



Under Polyounnatvs come amor, candalu^, celina {not = icarui<), eros, 



