300 Mr. Westvvood on Diopsis, 



scutellares colore piceo parfim suflfusa. Abdomen nitidissimum, satura- 

 ting fernigineuin apice nigro, alseque versus nervos transversos fusco 

 nonnihil decoloratae, apice pedunculorum oculiferorum, tibiis tarsisque 

 anticis apiceque tibiarum posticarum obscuiioribus. 



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 Linnaeus." There are, however, three 

 objections to this assertion: 1st, 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. Ichneumonea 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. Ichneumonea, without noticing the peculiarities 

 mentioned above. 



Species 8. Diopsis assimilis, mihi. 

 Tab. IX. Fig. 7, 8. 



D. rufescenti-ochracea, abdominis apice saturate fusco, thorace nigro, coUari 

 piceo, alls macula apicali nigra, femoribus posticis subinermibus spinisque 

 scutellaribus ochraceis. 



Long. Corp. lin. 3^. Expans. alar. lin. 6. 



Habitat ? Specimina duo in Musaeo Britannico hospitantur, quorum 



umim abdomen habet longius et gracilius ( S ?), alterum robustius et 

 paull6 majus ( ? ?). Hoc etiam saturatitis est coloratura. 



Caput cum pedunculis rufescenti-fulvum, his apice obscuris et inspeciminibus 

 ambobus, thorace cum capite paull^ brevioribus. Oculi nigri. Antennce 

 pallidse, seta longa nigra. SpincB pedunculares ordinarise minutissimae 

 duse, pone medium et propitis antennas positse quam in prsecedentibus ; 

 facie OS versus acuminata, lateribus fer^ rectis, dente brevissimo recto 

 utrinque subtus terminata. Thorax niger, obscurus, baud nitidus, cineras- 



