300 Mr. Westwoop on Diopsis, 
scutellares colore piceo parim suffusa. Abdomen nitidissimum, satura- 
tiùs ferrugineum apice nigro, aleque versus nervos transversos fusco 
nonnihil decoloratz, apice pedunculorum oculiferorum, tibiis tarsisque 
anticis apiceque tibiarum posticarum obscurioribus. 
Donovan, from whose figures and meagre description I have drawn the 
preceding characters, states that his specimens of this insect were brought 
from Bengal, where it was discovered by M. Fichtel, adding, * And they are 
most assuredly the D. Ichneumonea of Linnzus.” There are, however, three 
objections to this assertion: Ist, D. Ichneumonea, according to the best autho- 
rities quoted above, is evidently an inhabitant of Western Africa; 2nd, the 
spines of the thorax are black in Donovan's figures (he says nothing of their 
colour), whilst they are yellow in D. Ichneumonea ; and, 3rd, the spot on the 
wings in Donovan's insect is clearly terminal, whilst in D. Zchneumonea it is 
equally evident that it is a transverse fascia before the apex. Dalman and 
Wiedemann have followed Latreille in incorrectly adapting the reference of 
Donovan’s figures to the D. Ivhneumonea, without noticing the peculiarities 
mentioned above. 
Species 8. Diopsis assimiuis, mihi. 
Tas. IX. Fig. 7, 8. 
D. rufescenti-ochracea, abdominis apice saturaté fusco, thorace nigro, collari 
piceo, alis macula apicali nigra, femoribus posticis subinermibus spinisque 
scutellaribus ochraceis. 
Long. corp. lin. 34. Expans. alar. lin. 6. 
Habitat ? Specimina duo in Museo Britannico hospitantur, quorum 
unum abdomen habet longius et gracilius (¢?), alterum robustius et 
paulló majus (¢?). Hoc etiam saturatiüs est coloratum. 
Caput cum pedunculis rufescenti-fulvum, his apice obscuris et in speciminibus 
ambobus, thorace cum capite paulld brevioribus. Oculi nigri. Antenne 
pallida, seta longa nigra. Spine pedunculares ordinari minutissimze 
duæ, pone medium et propiüs antennas posite quàm in praecedentibus ; 
facie os versus acuminatá, lateribus feré rectis, dente brevissimo recto 
utrinque subtüs terminatà. Thorax niger, obscurus, haud nitidus, cineras- 
