44 ANNULOSA JAVANICA. 
is not as with Dacne and Languria the fourth but the first. Zanguria and the insects imme- 
diately allied to it differ from the typical characters which I have ventured to attribute to the 
aberrant groupe of Necrophuga, inasmuch as the clava of their antenne is often composed of 
more than three joints and sometimes even of five. Helota, however, as before said, has its 
antennee and mouth similarly constructed with those of the more typical insects of the stirps or 
at least with Dacne, to which it is much nearer allied than to Engis. 
The dorsal process of the maxilla is also in this genus beautifully distinct, and even presents 
a trace of being articulated. This circumstance of itself as well as the number of joints in the 
palpi separates Helota from the Buprestide, and places it in this family, for although other 
families in other tribes, as I have before shewn, may analogically present the bilobed maxilla, 
and thus approach to the typical structure of that organ, the pieces of the maxilla in all the 
Buprestide, which I have dissected, are confluent and indeed present a very uniform cha- 
racter wholly different from that of our insect. Moreover the typical character of the maxillary 
palpi in Coleoptera is that they are quadri-articulate, butin the Necrophaga generally as well as 
in our insect, the first joint is evanescent, so that such palpi may be described as tri-articulate 
in which respect they differ wholly from those of the Buprestidae. 
Genus LANGURIA. Lat. 
This genus was established by M. Latreille on the examination of an insect, LZ. bicolor, which 
was brought from North America by M. Bosc. The genus, however, has not been hitherto pro- 
perly characterized, since under a high lens it appears to be truly pentamerous, the penultimate 
joint of the tarsi being very minute, as in Engis. The validity of M. Latreille’s generic character 
will, therefore, depend on his description of the clava of the antennz, which he considers as con- 
sisting of five articulations—a description which, if true, will exclude all the following Javanese 
species from the genus. The fact seems to be, that Languria is divisible into several subgenera, 
which may be made to depend on the form of the antennee. Thus from the West Indies and 
Brazil, we have Langurie with short antennie, and a very thick clava composed of five joints ; 
while from the continent of India, we have such species as Languria elongata Lat. (Trogosita 
elongata Fab.), which have long filiform antennz, with a very indistinct attenuated clava, con- 
sisting of three joints. The form of &. bicolor Lat. seems common to Asia and America. 
Nevertheless as my object is not to make new genera, but to render new species sufficiently 
known, I shall leave the following species in the genus Languria, of which I reckon the prin- 
cipal characters to be its linear body, clavate antenne, filiform maxillary palpi, and evanescent 
fourth joint of the tarsus. 
87. PyraurpaTa. L. rwfa thoracis punctis tribus nigris, capite elytrisque viridi-eneis, antennis chalybeis 
Semoribusque testaceis. 
Long. corp. 2 
Caput supra viridieneum subtus nigrum, antennis chalybeis: clava quadriarticulata. Thorax rufus mar- 
gine antico et postico, puncto medio, alioque utrinque laterali nigris. Scutellem nigrum. Elytra 
pyramidata viridisenea nitida striis punctorum impressa. Abdomen sublineare pyramidatum vel 
apicem versus gradatim attenuatum, subtus convexum rufum ; ano viridiseneo. Pedes chalybei coxis 
nigris, femoribusque, geniculis exceptis, rufis. 
Oss. A 
