﻿1869.] 2? 



Drepanepteryx falculoides, Walker, is closely allied to D. pJialcs- 

 noides, but distinct. 



Semerobius decisus, Walker, might be placed provisionally in Mega- 

 lomus ; but it will form a distinct genus, which I propose to call 

 Neueonema, of which I will say more hereafter, giving here the 

 following preliminary diagnosis : — Alee antic<£ sectoribus (in J¥. deciso) 

 tredecim, quorum sex e radio emittuntur, reliqui ex uno illo parallelo. 



JEL. setulosus, Walker, is a true Megalomus. 



2. tasmanice, Walker, is a Micromus ; I have seen it from several 

 parts of New Holland, and possess two individuals from New Zealand, 

 which differ only in the rather greater amount of spotting on the 

 veins, and with these more strongly ciliated ; a comparison of an ex- 

 tensive series from both quarters will be requisite to prove the identity 

 or distinctness of the two forms. 

 Lewisham, May, 1869. 



DIAGNOSES OF THREE NEW SPECIES OP CALOPTERYGINA. 

 BY R. McLACHLAN, F.L.S. 



As Baron de Selys-Longchamps is about to publish a second 

 additional Synopsis of the Dragon-flies belonging to this family, I take 

 the opportunity of diagnosing three beautiful undescribed species from 

 my own collection, as under: — 



Sapho oeichalcea, n. sp. 



S. viridis, metallica, infra (cum pedlbus) nigra. Alee latce, ad apicem 

 rotundatcB ; postica?(prcscipue in maris) valde dilatatce : in ^adulto nigrce, 

 opacce, orichalceo-micantes, nigro-venosce, vend costali viridi, metallica ; 

 pterostigmate nigro : in $ immaturo fuliginoso-sub-hyalince, orichalceo- 

 micantes ; pterostigmate flavo : $, sub-hyalince, flavo-brunneo-tincta? ; 

 fascia mediand, cuneiformi, paullo curvatd, flavescenti, vel (immaturd) 

 albidd ; pterostigmate flavo, nigro-circumcincto. 



Long, abdom. $ 24'". ? 22"' ; exp. alar. $ 41"', ? 37"', 



Hab. Africa occidentali (et Madagascar ?). 



E-emarkable for the very broad wings, and for the transverse fascia 

 of all the wings in the $ , which is placed immediately after the nodus, 

 and is broadest on the costa. I have not seen an example with the 

 abdomen in good condition. In my own collection from Fernand Yas, 

 West Africa, almost on the equator ; in De Selys' collection from Old 

 Calabar ; and in that of the British Museum (a pair from Mr. Saunders) 

 labelled "Madagascar," but this locality seems very doubtful, The 



