84 Mr. G. J. Arrow on the 



palest on outer margin ; the lobe near base of inner margin 

 dark reddish brown, and a similar streak above vein 2 to 

 postmedial ; some liiacine white irrorations on costa and below 

 cell at base, and also on a vague antemedial dark wavy line ; 

 the postmedial black, divided by a line of liiacine irrorations, 

 slightly oblique from costa to submedian near tornus ; some 

 fine medial reddish-brown lines ; a curved brown line beyond 

 postmedial, followed by darker lunular lines, becoming 

 dentate towards tornus, the costal margin apically shaded 

 with reddish brown. Hind wings black; a broad orange 

 band from base along costa, then curved medially across two- 

 thirds of wing. 



Expanse 37 mm. 



Hah. Avangarez. 



Gonodonta lecha, sp. n. 



Palpi and head whitish grey, (yollar and thorax grey. 

 Abdomen deep yellow above, bufF-white underneath. Fore 

 wings dark silky brown ; the costal margin white, tinged 

 with light brown along extreme costa ; the base to below cell 

 pale olivaceous brown ; a grey-white streak along base of 

 inner margin ; the sinus bordered with liiacine grey ; a 

 straight subterrainal pale line from vein 9 to tornus, followed 

 by light brown and liiacine grey, on which are indistinct 

 lunular lines and submarginal points; a velvety black point 

 on discocellular anteriorly. Hind wings orange-yellow ; the 

 outer margin broadly black, narrowing to a i)oint near anal 

 angle. Uuderneath the hind wings are yellowish without 

 markings, or with only a little black on outer margin. 



Expanse 38 mm. 



Hab. Avangarez. 



Closely allied to G. sinaldus, Gn., but easily distinguished 

 by the subterminal line and paler costa and the diflferent hind 

 win^s. 



VI. — A Synoptical Revision of the Dynastid Genus 

 Lonchotus. By Gilbert J. Arrow. 



(Published by permission of the Trustees of the British Museum.) 



I DESCRIBED in 1908 two new species of the Madagascan 

 genus Lonchotus. Only two species were previously known, 

 L. lentus, Burm., and L. Lateretusus, Fairm., the latter being 



