POLYGLYPTA.—BILIMEKIA. 127 
toa moderately acute point, which is, however, rounded at the extreme apex; the punctuation is rather 
stronger in front of the shoulders ; tegmina hyaline, with the veins brown exteriorly, but fuscous or black 
on the disc. 
Long. 9 millim. (sine cornu 8 millim.); lat. int. hum. 23 millim. 
Hab. GuatemMaa, Volcan de Agua 8500 to 10,500 feet (Champion). 
Two male specimens. At first sight, this insect almost appears as if it might form 
the type of a new genus; but the tegmina appear to be of the ordinary Polyglypta 
type, and there are no other differences sufficient to distinguish it from that genus. 
There are specimens from Mexico in the Vienna and Stockholm Museums which are 
very closely allied to this species, except that they are slightly smaller and rather 
differently sculptured: I at first described them under a separate name, but, on further 
examination, I have come to the conclusion that they can scarcely be regarded as 
distinct ; in certain points, however, they seem to lead on to extreme forms of the 
very variable P. dorsalis. 
BILIMEKIA, gen. nov. 
Corpus elongatum, parallelum; pronoto ab humeris in cornu longum et obtusum producto, fortiter pone oculos 
ad latera emarginato; dorso ab apice cornus usque ad apicem pronoti recto, hoc lato, truncato; humeris 
haud prominentibus ; metopidii margine supra clypeum fere recto, clypeo lato, late et minus alte 
emarginato; pronoto leviter costato; tegminibus areis apicalibus tribus, area discoidali una subtriangulari ; 
tibiis anticis et intermediis latis, subfoliaceis. 
Body long and parallel, with the posterior extremity of the pronotum truncate, and the front portion produced 
into a long blunt horn, the upperside of which is straight and level with the back of the pronotum, the under- 
side being slightly curved. The tegmina are almost entirely hidden by the pronotum, only the extreme 
edges being visible, and have only three apical areas, instead of five as in Polyglypta, and one subtriangular 
discoidal area. The wings appear to be veined much as in the last-named genus, with three apical areas. 
The anterior and intermediate tibie are broad and subfoliaceous. The general shape is exactly that of a 
steel-pen nib. — 
The characters above mentioned abundantly distinguish this genus, which in several 
important points differs from Polyglypta, although in others it is evidently allied 
to it. | 
I have named the genus after Herr Bilimek, “a friend and companion of the 
Emperor Maximilian in Mexico, and a very eager collector,” as Herr Handlirsch 
informs me; all the specimens I have seen were obtained by him, and a very large 
proportion of the specimens from Central America in the Vienna Museum have his 
name attached to them. 
1. Bilimekia styliformis, sp. n. (Tab. VIII. figg. 9, 9, J.) 
Stramineo-testacea, unicolor, pronoto subtilius punctato, multicostato; cornu pronotis ad basin lato, apice 
obtuso, carinato; oculis sat magnis, testaceis ; ocellis distinctis, ab oculis quam inter se minus remotis ; 
tegminibus hyalinis, venis testaceis. 
Of a unicolorous testaceous straw-colour, probably lighter in life, with the pronotum rather finely punctured 
