2 Rev. F. W. Hope on the 
new genus, as it does not accord with Paris of Wiedemann, and 
any of its congeners, The peculiarity of the above genus Is 
having three joints of its antenne armed, which in the other sex 
is wanting. The oriental Hamaticheri require subdivision, the 
characters of which may be derived chiefly from the antenne as 
well as from the presence or absence of armature. In our Me- 
tropolitan Cabinets three or four other species will be found. 
Sp. 22. Monohammus alternatus, Hope. 
Affinis M. dentatori Fab. at minor. 
Long. lin. 10, lat. lin. 14. 
Griseo-brunneus, thorace spinoso, elytris cinereo, brunneo, 
glaucoque nebulosis, Corpus infra concolor. 
Sp. 23. Oplophora Horsfieldu. (Plate I. fig. 2.) 
Nigra, flavo-variegata, antennis albo-cingulatis. 
Long. lin. 20, lat. lin. 8. 
Thorax utrinque spinosus ater, lineis binis flavis longitudinali- 
bus insignitus. Elytra duodecim maculis flavis notatis. 
Corpus infra atrum, nitidum, pectore flavido, segmentisque 
abdominis utrinque flavo-maculatis. Pedes nigri, tibiis in 
medio atro-pilosis. 
Sp. 24. Cassida piperata, Hope. 
Flava, antennis concoloribus, quatuor ultimis articulis nigri- 
cantibus. 
Long. lin, 24, lat. lin. 13. 
Thorax fere hyalinus, flavus, macula minuté nigra in medio 
disci posita. Elytra flava, disco nigro-piperato. Corpus 
infra nigrum, nitidum, pedibus flavescentibus. 
Sp. 25. Clythra nigrifrons. 
Aurantia, capite nigro, thorace flavo immaculato. 
Long. lin. 3, lat. lin. 13. 
Elytra rubro-flava, humeris atro-maculatis, fascidque nigro- 
violaced ante apicem posita. Corpus infra pectore flavescenti, 
abdomine nigro, argenteisque capillis obsito, pedibus atris. 
The above insect is subject to vary considerably ; some speci- 
mens are nearly all yellow, with a small humeral spot, others 
again have no fascia near the apex of the elytra, and occasionally 
the fascia is subdivided into smali black lines and irregular black 
spots. 
