86 BULLETIN BROOKLYN ENTOM. SOU. VOL. VI. —_ January 1884) 
Obsoleta Say. Black, sericeous, black beneath; head glabrous, lab- 
rum not advanced in middle, five-toothed, the outer teeth often in- 
distinct; thorax trapezoidal, rather flat, almost margined; with a few 
hairs at the sides, elytra indistinctly punctured except towards the base, 
where the punctures are large and scattered. Markings a transverse 
white abbreviated submarginal line near the middle and an obsolete 
apical dusky dot: or black immaculate. 
Var. vulturina Lec. Black above, green beneath; elytra with a humeral 
dot, an obtusely angulated middle band and an apical lunule, more 
or less obsolete; labrum three-toothed, sometimes five-toothed; Dr.. 
Horn mentions green specimens from Arizona. 
Var. prasina. Olivaceous green above, metallic green beneath, elytra 
immaculate, labrum three-toothed. 
Leconte mentions a specimen of dark blue color, beneath blue, legs 
blue, elytra with humeral, and posthumeral dot, middle band not 
attaining the margin and an apical lunule, from Arizona, and I have 
myself a specimen with coppery surface, beneath blue, and legs green, 
from New Mexico. Occurs in Tex., Ark., New Mex., and Arizona. 
Length 16—20 mm. 
Say, Journ. Ac, Philad. 1823, III, 143; Lec. Ann. Lye IV, 178, pl. 13, f. 4. 
vulturina Lee. Proc. Ac. Philad. V1, 439. prasina Lec. (obsoleta { var.) Lec. 
Ann. Lye. IV, 178. 
Unipunctata Fab. Brown, opaque, sericeous, beneath dark blue; head 
granulate, bald; labrum three-toothed; thorax flat, granulate, trapezoidal, 
as long as broad, scarcely hairy at the sides; elytra flattened, with dis- 
persed green foveae and irregular green punctures, marginal triangular 
white dot. Occurs in N. Y., Pa., Ga., Mo. Length 16—18 mm, 
Fab. Syst. Ent. p. 225: Oliv. Ent. I, 33, p. 23. pl.4, f. 27. Say, Trans. 
Am. Philos. Soc. I, new ser. t. 138, Say (Lec. Ed.) Il, 425 and 522. 
Longilabris Say. Blackish or dark brown, beneath purple black or 
dark green. Head bald in front broadly excavated. The labrum 
white. nearly as long as broad, rounded in front and obsoletely three- 
toothed and a little dilated at base; thorax trapezoidal, short almost 
margined, rugose, deeply impressed; elytra densely punctured, near 
the suture a row of faint large foveze; the markings are variable, usually 
a humeral spot, another before the middle on the margin, a reclivate 
nearly transverse band on the middle and a spot at the posterior curve 
of the elytra, being the anterior part of the apical lunule; the termi- 
