collected in New Holland by Mr. Robert Brown. 467 
tus: margine explanato rotundato. Scutellum apice rotunda- 
tum, punctatum. Elytra porcata: porcis crenatis, alternis ca- 
tenatis, vel ex punctis oblongis elevatis, ut in Carabis pluribus 
obtinet, constantibus. 
Obs. Porci omnes in apice elytri interrupti sunt. 
I did not discover that Adelium caraboides had been described 
by Fabricius till after the figures illustrative of this paper were 
drawn; and as the insect here given confirms the genus I had 
laid down in my former paper, and is another instance of its spe- 
cies imitating the form and appearance of the Carabide, I think 
it may be interesting to Entomologists, particularly on account 
of Mr. Curtis's excellent figure, if I retain it. I have altered 
Fabricius's trivial name, as the insect certainly is neither a Cara- 
bus nor a Calosoma, to make it harmonize with those of the spe- 
cies before described. 
Hzrzvs Latreille. 
* Thorace antice bipartito, ante caput protenso. 
Brownii. 18. H. ater, glaberrimus, thorace caput ambiente, co- 
leoptris disco elevato granulato: sutura cari- 
nata. 
Prare XXIII. Fre. 8. 
Long. corp. lin. 9. | 
Affinis H. perforato Latr. sed dimidio minor. Palpi maaillares 
articulo extimo minori, subpetiolato. Coleoptra glaberrima, 
haud punctata, granulis quibusdam subseriatim notata. Su- 
tura in carinam elevata. Sternum vix carinatum. Alias simil- 
limus. 
This family of the genus Heleus presents some of the most sin- 
gular insects in nature. "The lobes of the thorax meet over the 
VOL. XII, 3P head, 
