120 DESCRIPTIVE CATALOGUE. 



secundo longissimo, oblongo, latere siiperiore subarcuato, ultra basin a capite soluto, oblique 

 assurgente, villis tenerrimis vestito ; articulo tertio mediocri, attenuate, subfalcato, vix nutante, 

 villis brevissimis obsito. 



Proboscis dilatatus, palpis longior, apice latere altero setis crebris brevibus munito. 



Caput breviusculum subrotundatum. Oculi mediocres, subprominuli, nudi. Corpus breve, atte- 

 nuatum, compressum. Ala anticse oblongae, obtusae, margine costali dilatato-arcuato ; posticffi 

 subelongatffi, angulum analem versus sensim attenuatse, appendiculo anali lateraliter producto, 

 angulari, truncato; cauda solitaria oblique divergente. Perfes an ticitarsis pro sexu diversis; maris 

 articulo solitario, elongato, cylindrico, obtuso, medio sulco obsoleto, transverse, exarato, 

 squamis minutis obtecto, subtus setis qucque adsperso; setis insuper nonnuUis terminali- 

 bus erectis non exsertis munito; foeminse quinque-articulatis, articulo basilari subelongato, 

 reliquis attenuatis, squamulis minutis vestitis, subtus parum setosis, articulo extimo unguibus 

 duobus minutis, appendiculis utrinque lateralibus et pulvillo intermedio praedito, serie 

 denique terminali apicem occultante : pedes medii et postici in utroque sexu unguibus duobus 

 minimis, appendiculis lateralibus et pulvillo intermedio muniti. . 



The two genera last enumerated, Myrina and Loxura, agree in various particulars ; we find them 

 accordingly united in the Encyclopedic, while the modifications of form which they exhibit, afford indica- 

 tions merely of sectional divisions, the type of one being Myrina Jafra, and of the other Myrina 

 Atymnus. I originally adopted this view, as appears from the explanation of the plates of the first part ; 

 but the examinations which I instituted in the prosecution of my inquiry, and the analysis of numerous 

 specimens of each species, have convinced me that they are, according to our present views, perfectly 

 distinct. I therefore proceed now to the detail of the most distinguishing peculiarities of Loxura. The 

 Antenna are short, strict, more evidently incrassated towards the point than in Myrina, and provided at the 

 terminal joints with more distinct bristles. The Palpi are proportionally much longer, being full half the 

 length of the antennae ; the second and third joints differ both in form and direction, as appears from the 

 peculiarities which are minutely exhibited in the description and plate. The head is comparatively narrow, 

 and the eyes prominent. The hinder tuings in Loxura are lengthened, and regularly attenuated to a 

 narrow anal extremity; the anal appendage is angular, with a lateral projection and an abrupt posterior 

 termination : these laings are provided with a single tail, which passes off in an oblique direction. In the 

 essential structure of the tarsi of both sexes, Loxura agrees with Myxina. ; these organs are however more 

 elongate in the former, especially in the male, and uniformly covered with minute scales, in which the 

 annular disposition is obscure. But the most important character required fbr the illustration of these 

 genera is still unknown ; I mean that exhibited by the metamorphosis ; but as Loxura Atymnus is found in 

 the Hon. Company's botanic garden at Calcutta, I hope to be enabled to add this illustration at a future 

 period. 



Loxura is a very remarkable genus. It stands in our series near the confines of the Vermiform and 

 Chilognathiform stirpes, and the indications which it affords in point of affinity, are highly instructive. Its 

 relation to the genus, which in our catalogue immediately precedes it, appears, from the statements above 

 made, and from the illustrations given in our second plate ; and although the antennae and palpi vary in 

 proportional length, they are very similar in form. 



I shall now direct the reader to those characters in Loxura which indicate the approach of the Chilogna- 

 thiform stirpes. The external habit resembles Colias ; the colour is spread over the surface in the same 

 manner, and varies but little in the different sexes ; the margins are similar, and the metallic Irrorations 

 existing in Myrina are no longer observed ; the markings underneath likewise are simple. The anterior 

 tersi pf th,e males, although essentially agreeing with Myrina in character, are more lengthened. The 



form 



