PROCEEDINGS OF THE ACADEMY 05! 
iaterstitiis fortius subtiliter punctatis, antennis pedibusque piceo-testaceis, 
femoribus posticis nigro-aeneis. Long. -12, 
Fort Yuma, California, one specimen. The striae of the elytra in this species 
ire formed merely of punctures, as in P. c o n v e x i o r Lec.^ Pac. R. R. Survey, 
^, (insects) 69, bul the intervals are strongly punctured as in P. p u n c t i c o 1 1 i s 
Meh. 
DiABROTiCA (I Chevr.) 
1) t e n e II a, elongato-ovata, pallide virescente-flava nitida, thorace latitudine 
baud breviore, bifoveato, lateribus subsinuatis, ore occipiteque fuscis, elytris 
guttis utrinque sex parvis nigris, 2, 2, 2 positis ; scutello postpectore pedibusque 
fuscis, femoribus pallidis ad apicem infusca,tis, antennis fuseis, articulis tribus 
primis pallidis, Long. -2— '22. 
Fort Yuma, California, Resembles D. 12-punctata, but the spots are always 
very much smaller, and the thorax is not transverse, and not much rounded on 
the sides near the apex, and all the angles are prominent. 
D ? fossata, elongata, nigra nitida, vertice profunde foveato, thorace lati- 
^-udine baud breviore, foveis magnis duabus profunde excavato, lateribus subsi- 
nuatis, elytris subtiliter punctatis, plica versus marginem munitis, postice 
obsoleta introrsum sulco lata utrinque abbreviato definita. Long. «21. 
New Baunfels, Texas, Mr. Lindheimer. An immature specimen is dark testa- 
ceous ; this species is of the same form as D. longicornis Say (Galleruca,) 
but the elytra are less strongly punctured. 
Galleruca Geoffroy. 
G. sordida, testacea, dense pallide sordide pubescens, capite canaliculate, 
thorace brevi, lateribus subangulatis, profunde canaliculato, utrinque late exca- 
vato, elytris subtrisulcatis, sulco secundo antice introrsum obliquo, tertio utrinque 
valde abbreviato, macula communi nigra suturali paulo impressa ad medium 
notatis, guttisque pluribus praecipue pone medium ornatis ; antennis corporis 
dimidio brevioribus extrorsum paulo incrassatis, pectore fusco. Long, .13. 
Fort Yuma, California. Related to G. guttulata Lec. Pac. R. R. Survey, 
'i, (insects) 70, but more finely punctured, and still more densely pubescent, so 
that the punctures are not visible. The grooves of the elytra are also different ; 
r.he first is entire, but is a little deeper at the sutural black spot, the second runs 
obliquely inwards from the humerus, and forms a deep fovea near the first, then 
it runs parallel with the suture, but is faint ; the third is very faint and short, 
oeing seen only about the middle. 
luteocincta, elongata, thorace brevi flavo, lateribus subangulato, 
utrinque oblique excavato, minus dense punctato, cyaneo-trimaculato, elytris 
Bneo-cyaneis, vel aeneo-viridibus, sericeis pubescentibus, densissime punctu- 
latis, limbo externo et apicali flavo, subtus cum pedibus fusco-nigra vel testacea, 
antennis elongatis fuscis. Long. ■32--43. 
San Diego, California ; very abundant on a species of Artemisia. This species 
varies much in size and color ; the head is usually dull testaceous, with the 
occiput blackish or greenish blue ; sometimes the head is entirely blackish. It 
is closely related to G. flavolimbata Mann, from northern California, but 
differs by the thorax being broadly and deeply excavated each side, and again 
less deeply at the middle near the base and apex : in G. flavolimbata there is 
but one deep excavation, which extends transversely across the thorax. In 
one specimen the elytra are dull testaceous, having only a scutellar patch, and 
an external vitta olive green bronzed. In another, the black spots of the thorax 
cover nearly the whole surface. 
ExocHOMus Redt. 
E. texanus, rotundatus valde convexus, fere compressus, niger nitidus, 
capite obscure rufo, thorace prope angulos anticos ad marginem rufescente, ely- 
[March, 
