_ 
24 Mr. Joseph S. Baly’s descriptions of 
sum. Abdominis segmentum basale magnum, processu 
basali late truncato. 
Type, Chrysomela cincta, Oliv. Senegal. 
Mesoplatys—founded on species erroneously placed by 
Vogel under ELntomoscelis (a genus with which they have 
not the slightest affinity)—may be easily separated from 
Chrysomela by the conical apical joint of the maxillary 
palpus; by the narrow, short prosternum, which scarcely 
reaches the mesosternum ; by the peculiar form and raised 
anterior margin of the latter seement, and by the oblique 
groove on either side of the surface of the metasternum : 
the metasternal epiplures are also slightly dilated pos- 
teriorly. 
Genus CarystrEa, Baly. 
With deference to the opinion of the learned continuator 
of Lacordaire’s genera, who has sunk the above genus 
into Chrysomela, I still think that it ought to be retained. 
In addition to the characters given in my diagnosis, there 
is still another important one, overlooked by me at the 
time, and subsequently also by Dr. Chapuis, which dis- 
tinctly separates the two genera. In all the species of 
Chrysomela proper the apex of the metasternal process is 
regularly margined. In Carystea, on the other hand, 
this process is “impressed on either side by a deep groove, 
but the apex itself is immarginate. 
Fam. HALTICID 4. 
Genus EUTREA. 
Corpus subelongatum, pube adpress& submetallicaé dense 
vestitum. Caput valde exsertum ; antennis 11-articulatis, 
filiformibus; ocu/is magnis, prominentibus, rude granu- 
losis; carind elevata; encarpis tumidis, contiguis. 
Thorax subcylindricus, dorso depressus, lateribus fere ob- 
soletis. lytra anguste oblonga, thorace multo latiora, 
crebre punctata. Pedes: coxis anticis erectis, apice fere 
contiguis, prosterno multo altioribus; femoribus posticis 
valde incrassatis ; ¢ébi’s anticis quatuor spiné parva ar- 
matis: pesticis apice bispinosis ; unguiculis appendiculatis. 
Prosternum angustissimum, apice transversim dilata- 
tum ; acetabulis ‘anticis integris. JZesosternum angustum, 
