1872 } 941 
Many examples of both sexes. The head in the 9 is decidedly 
broader behind the eyes than in the g. In all examples the elytral 
spots are rather large, broad and conspicuous, the middle spot is 
slightly transverse, but not linear; the spot under the humeral callus in 
the ¢ (absent in the 2 ) appears a frequent sexual character in this genus. 
OXYGONIA FLORIDULA, sp. 2. 
3. O. gloriolee eodem seat gracilior, capite angustiori, colore obscurior? ; 
capite viridi, vertice purpureo, labro nigro maculis duabus pallidis ; palpis 
pallidis, maxillaribus articulis duobus, labialibus articulo ultimo, NLgTIS ; 
thorace strigoso, disco purpureo, marginibus viridi-aureis ; elytris loete sub- 
viridi-aureis, vitta lata suturali pone medium valde dilatata nigro-cenea, ut 
in O. gloriola incequalibus, apice rotundato, angulo suturale fortiter dentato, 
subtilius punctatis, punctis ante apicem densioribus, plagis duabus minoribus 
levibus, maculis albis tribus conspicuis, quartaque parva sub humero, minort ; 
corpore subtus femoribusque viridi-ceneis, abdomine aurato. Long. 7 lin. 
2. O. gloriole eodem sext afinis, difert colore supra clare olivacea, 
nitore sub-opalescenti induta, labro nigro, testaceo-bimaculato ; collo multo 
angustiore, palporum articulo ultimo tantium nigro, elytrorum macula sub 
humero haud deficienti ; corpore subtus ceneo-splendido, femoribus viridibus. 
Long. 7 lin. 
I have seen about six examples of each sex. The colour of the 
palpi is evidently a variable character in this group, and I do not lay 
much stress upon it, but the totally different shape of the head in both 
sexes, the colour and the pale humeral spot of the ? are important. 
The punctuation of the elytra is finer than in O. gloriola. 
Oxyeonrta BUCKLEY, sp. n. 
3. O. gloriole colore simillima, differt elytris conspicue longioribus, 
labro cupreo splendido ; elytris eodem modo sculptis et pictis; corpore 
subtus cwpreo-awreo splendido. Long. 74 lin. ; elytror. 5 lin. 
Q. O. gloriole eodem sexi similis, at longior, viridi-enea, labro 
splendide viridi-eneo, antennarumque articulis 1 et 3—4 ad apicem 
metallicis. Long. 7% lin. 
The metallic labrum is constant in both sexes throughout the 
numerous series of this species that I have examined; but it is quite 
easy to distinguish it by the form of the body alone; O. Buckleyi 
being much more elongated than in the other two (more conspicuously 
so in the ¢), and having a broader and more convex neck, which causes 
the eyes to appear less prominent: there is the same sexual difference 
as in O. gloriola with regard to the humeral spot. The males of O. 
Buckleyi are less glittering in colour than those of O. gloriola. 
