Pliytopliugous Culeojjtera of Japan. 71 
at the base ; the punctures much smaller and less dee))ly 
impressed behind the middle ; basilar space bounded 
beneath by a broad, well-defined excavation, Avliich does 
not extend quite to the suture, but occasionally curves 
upwards along its edge to the scutellum. Body beneath 
black ; abdomen clothed with very fine sericeous hairs ; 
last three segments testaceous. 
This insect (previously described by me from specimens 
brought from JSTorthern China) varies so greatly in size 
and sculpturing of thorax, that I have thought it best, 
after examining the fine set of individuals placed in my 
hands by Mr. Lewis, to make a fresh diagnosis of the 
species ; in the majority of the larger specimens from 
Japan the abdomen is entirely black ; but I possess 
others, equally large, from the coast of Tartary, in Avliich 
the apex of the abdomen is testaceous. I presume, there- 
fore, that this is the normal colouring, the black apex 
being only a variety. All the specimens that I have 
examined, however they may differ in size or m the punc- 
turing of the upper surface of the thorax, agree in having 
a broad longitudinal space (much more distinct than in 
L. coronata), occupying the deepest part of the lateral 
constriction, coarsely rugose. 
Lema diversa. 
Nigra, nitida, vertice scutelloque piceis, thorace elytris- 
que piceo-fulvis ; thorace subquadrato, lateribus medio 
constrictis, disco im])unctato, ante basin trausversim sul- 
cato, sulco medio unifoveolato ; elytris utrisque infra basin 
transversim excavatis, fortiter punctato-striatis, interstitiis 
ad apicem subcostatis. 
Long. 2f — 3 lin. 
Ilah. — Nagasaki, on the Chrysanthemum ; also China. 
Forehead smooth, impressed with a deep longitudinal 
groove. Thorax scarcely broader than long, subcylin- 
drical ; sides broadly constricted in the middle, the dee]3est 
portion of the constriction rugose ; disk smooth and 
shining, nearly impunctate, a longitudinal space in the 
centre impressed Avith a few fine pvmctures ; a short dis- 
tance in front of the basal margin is a distinct transverse 
groove, the centre of Avhich is impressed Avith a single 
foA^ea. Scutellum piceous, glabrous. Elytra parallel, 
each transA'Crsly excavated below the basilar space, the 
excavation not extending to the suture ; surface regularly 
