332 Mr. M. Jacoby's contributions to the knowledge of 
the posterior margin distinctly concave in front of the scutellum, 
the surface itnpunctate, testaceous, with an obscure piceous spot at 
each side ; scutellum trigonate, black, impunctate ; elytra very 
elongate and parallel, greenish-a3neous, extremely finely and closely 
punctured with very obsolete traces of longitudinal sulci, and some 
very short hairs near the margins, their epipleuras broad at the 
base, disappearing below the middle ; underside and legs testaceous, 
the latter rather robust ; all the tibiaa mucronate, the first joint 
of the posterior tarsi as long as the following two joints together ; 
claws appendiculate, presternum invisible between the coxae, 
anterior cotyloid cavities open. 
Hah. Hex Kiver. 
I place this species somewhat doubtfully in Malacosoma 
on account of being devoid of a convex and distinct 
prosternum, although tbe other structural characters 
peculiar to the genus are present. The shape of the 
thorax is, however, also distinct from any of its allies, as 
well as the peculiar structure of the clypeus, which may, 
however, belong to the male insect only. Should other 
similarly-structured species become known, a new genus 
is probably required for their reception. 
Saedoides, n. g. 
Body elongate, antennae slender, filiform, thorax transverse, 
bifoveolate, elytral epipleurae continued below the middle, legs 
slender, the tibiae unarmed, the first joint of the posterior tarsi 
as long as the following joints together, claws appendiculate, 
anterior coxal cavities open. 
The genus here proposed will enter Chapuis' eleventh 
group, the Mimastrinx, on account of the unarmed tibiae 
and open coxal cavities. The genus differs from 
Mimastra in having a more transversely-shaped and 
bifoveolate thorax instead of being transversely sulcate ; 
the elytra have broader epipleurae, and the first joint of 
the tarsi is much longer than in Mimastra. The present 
genus is founded on a species which has been long 
known to me as inhabiting the Cape, but seems not to 
have been described. It was submitted by me during 
Chapuis^ life to this clever author^s examination, and he 
also pronounced it as being a new genus entering the 
group mentioned above. 
