118 Notes on Australian Coleoptera. 
head, forming two short horns, diverging one from the 
other; thorax with a very faint posterior and transverse 
impression ; its sides marginated and almost straight; very 
_ little broader behind than in its anterior part; elytra 
parallel, with their posterior margin reddish; inferior parts 
of the body, parts of the mouth and legs of a dark red. 
From Arnheim’s Land. Sent by Mr. Waterhouse to Dr. 
Howitt. 
Note.—This insect has a remarkable likeness to some of 
the Diaperide, of the genus Oplocephala. 
Adelotopus Fasciatus: length 2’; black, glossy; long, nar- 
row, cylindrical; thorax almost square, nearly as wide 
foremost as backwards, not broader than the elytra; these 
with faint longitudinal puncturated striae, and a broad red 
transverse band, covering nearly the two first thirds of the 
elytra; this band does not entirely extend to the base, 
neither to the external margin, and is cut obliquely behind 
the scutellum; lower side of the abdomen red, thorax brown, 
legs reddish; parts of the mouth and antenne black. 
“Sydney. 
Note.—In some specimens the red colour on the postcrien 
margin of the elytra extends considerably, and forms a trans- 
verse band. 
Adelotopus Affinis: length 24’; very nearly allied to the 
preceding, but larger and much broader ; thorax wider than 
the elytra; the transverse red band of the last shorter, and 
not extending to one-half of the length; parts of the mouth, 
antennez, abdomen, and legs red. 
Sydney. 
Adelotopus Zonatus: length 22’; black, glossy ; long, nar- 
row, almost cylindrical; thorax rather broader than the 
elytra at its posterior part, considerably narrower forward ; 
it has a feeble transverse impression, two other impressions 
near its posterior margin, and a very feeble sulcate on its 
middle, generally only visible at its posterior part; elytra 
rather unequal when seen through a lense, with a transver- 
sal band near the base, and another covering the extremity 
red; the first of these bands is much narrower than in © 
the two preceding sorts; it is sinuous on its sides, narrower 
towards the suture, but does not extend to the external 
margin; on its surface one can see vestiges of longitudinal 
striz ; eee black, with parts of the mouth, antenne, 
abdomen, and legs brown. 
Melbourne. 
