27 
Drepane^pieryx falculoides, Walker, is closely allied to D. phalce- 
y;es, but distinct. 
Ilnnerobius decisus, Walker, might be placed provisionally m Mega- 
ns ■ but it will form a distinct genus, which I propose to call 
•tiEOKEMA, Of which I will say more hereafter, giving here the 
yowing preliminary diagnosis :-^Z^ antic<^ sectorihus (in N. decide-) 
Hecim, quorum sex e radio emittuntur, reliqui ex uno illo parallelo. 
E. 
etulosus, Walker, is a true Megalomus. 
• H. tasmani^. Walker, is a Micromus ; I have seen it from several 
fts of New Holland, and possess two individuals from New Zealand, 
ich differ only in the rather greater amount of spotting on the 
'ns and with these more strongly ciliated; a comparison of an ex- 
isive series from both quarters wiU be requisite to prove the identity 
distinctness of the two forms. 
Le-wisliam, May, 1869. 
DIAGNOSES OF THEEE NEW SPECIES OF CALOFTEBTGINA. 
BY R. McLACHLAN, F.L.S. 
' As Baron de Selys-Longchamps is about to publish a second 
iditional Synopsis of the Dragon-flies belonging to this family, I take 
ae opportunity of diagnosing three beautiful undescribed species from 
ly own collection, as under:— 
Sapho obichalcea, n. sp. 
S. viridis, metallica, infra (cum. pedihus) nigra. Al<^ latce, ad apicem 
'Otundatce ; postic^( prcecipue in maris) valde dilatat^ : in $ adulto mgr<e, 
^acce, orichalceo-micantes, nigro-venos^, vend costali vmdi, metallica; 
nerostigmatenigro: in ^ immaturo fuliginoso-suh-hyalin<^, orichalceo- 
nicantes; pterostigmate flavo : ?, mh-hyalin.., flavo-hrunneo-Unctce; 
fascid mediand, cuneiformi, paullo curvafd, Jlavescenti, vol {unmatura) 
dbidd; pterostigmate flavo, nigro-circumcincto. ^^^ 
Long.ahdom. S 24"'. ? 22"'; exp. alar. S 41'", ? 37 , 
Hab. Africa occidentali (et Madagascar ?). 
Remarkable 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. 1 have not seen an example with the 
abdomen in good condition. In my own collection from Fernand Vas 
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 
