268 NATURAL History BULLETIN. 
the second produced into a narrow, laterally emarginate lobe. 
Length, 1.8 mm. Virginia. - - - - ulket, 280 
Occipital foveze smaller than in kez, mutually more distant, 
with the first segment acutely bilobed, the second one broad, 
lobe overhanging the third segment. Length, 1.7 mm. IIli- 
nois, Iowa. - - - - - - - illinotensts. 28! 
2% Occipital fovez isolated from the eyes. 
41 Posterior limit of each elytron arcuate in the middle, sinuate externally, 
4 first dorsal triangularly produced in one broad lobe. Color brown. 
Length, 1.66 mm. Pennsylvania. - - - - dentata. 282 
42 Posterior limit of the elytra straight, pronotum impunctate. 
Black, legs, antenne and palpi dusky yellow, occipital fovez 
small; abdominal carinz including one-third of the seg- 
mental width; ¢ first dorsal broadly arcuated lobed, elevated 
in the middle of the posterior limit, second transversely con- 
vex, foveate at the middle posteriorly. Length, 1.2-1.3 mm. 
Michigan, Illinois, lowa. - - - - perforata. 28% 
Brown, head paler, all the foveze on head and pronotum excess- 
ively large, $ posterior margin of first segment emarginate in 
the middle: second with a circular impression. Length, 1.3 
mim. California. - - - - - - Soveata. 283 
Yellowish - brown, fovee normal, abdominal’ fovez including 
more than one-third of the width; ¢ first dorsal flattened, 
slightly deflexed, and foveate at the tip, second transversely 
convex. Length, 1.5 mm. Texas, Louisiana. ($ tnfinita, 
Casey). = a - - - - - -.  belfragei. 884 
Yellowish-red, prothorax sinuate at the sides behind the middle; 
4 first dorsal as long as wide, quadrate, carine including two- 
fifths of the width. Length, 1.3mm. Texas, Arizona. 
texana. 285 
II. Elytra each with three basal foveole. Prothorax with large, pubescent 
lateral foveze and a small, Wide median one. (fteichenbachia, Leach). 
D. Abdominal carine including less than one-third of the segmental width. 
No secondary sexual marks on the antenne. 
11 Abdominal carine separated by a distance not exceeding that between 
the sutural lines, and including a rounded, pubescent pad, often 
covered by the elytra. 
21 Pronotum punctured. 
Pronotum evenly thinly punctulate, abdominal carinz short; 
color at time of copulation, pale umber brown, elytra yellow- 
ish-red. Later in the year this color darkens. Length, 1.2 
mim. - - - - - - - : gemmifer. 284 
Pronotum evenly densely punctate, elytra and dorsal segments 
regularly punctulate, abdominal carine very long. Color at 
time of copulation, dark piceous, elytra slightly paler. 
Length, 1.3-1.4 mm. Canada, Iowa. - - canadensis. 286 
