of some Exotic Aphodiideous Insects. 241 
ciliatis constans. Palpilabiales breves, laterales, et, ut videntur, 
triarticulati. Prothorax fere quadratus, capite parum latior, 
lateribus versus angulos anticos sinuatis, disco longitudina- 
liter costato. Prosternum ante pedes anticos porrectum. 
Pedes antici breves, femoribus crassis, tibiis extus edentatis 
tarsisque brevibus. /ytra prothorace paullo latiora, ante 
medium parum dilatata, disco costata, costis ante apicem 
terminatis. Scutellum minimum fere inconspicuum, Pedes 
4 postici graciles, breves, tibiis haud denticulatis. Abdomen 
segmento anali subtus rotundato, granuloso,. 
Ryparus Desjardinsii, Guérin. (Pl. XVII. fig. 5.) 
Niger, opacus, punctatus, luteo-squamosus; pronoto costis 6 lon- 
gitudinalibus, intermedio utrinque ante medium interrupto, 
elytrorum sutura costisque 4 (in singulo) elevatis glabris, 
costis utrinque punctatis ; antennis luteis. 
Long. corp. lin. 24. 
Habitat in Insula Mauritii. D. Desjardins. 
In Mus. D. Hope. 
This species has been named by M. Guérin Méneville in honour 
of the late M. J. Desjardins, an excellent entomologist, long resi- 
dent in the island of Mauritius, where his loss will be felt as long 
and deeply as it is by those entomologists who, like myself, had 
been in frequent correspondence with him. 
Pl. XVII. fig. 5. Ryparus Desjardinsii magnified. 
5a, the head seen from above; 5b, maxilla; 5c, instrumenta labialia 
5d, antenna; 5e, underside of the prothorax; 5/, anterior tarsus ; 
5g, hind leg; 5h, underside of the abdomen. 
In a small collection of Coleoplera recently received from Capt. 
Boys, corresponding M. E. S., collected at Mhow, in Malwa, in 
Central India, there were several specimens of a small Lamellicorn 
beetle, which, although resembling a small species of Aphodius in 
general figure, presented so curious an aspect from their deeply 
sculptured prothorax, setose tips of the elytra, and broad flat feet, 
destitute of spines or spurs, that I was induced to examine the 
structure of the mouth, and therein detected a formation of which 
I believe no other Coprophagous Lamellicorn offers an analogy. 
The nature of the food of this great division of the genus Sca- 
rabeeus of Linnzeus, consisting of wet vegetable or excrementitious 
matter, needs only membranous maxillz and mandibles, whilst their 
VOL, IV. R 
