276 GEO. H. HOKN, M. D. 



Pygidiutn closely, subgranulate-])unctate, with short lecumbent hair. Metaster- 

 miiu densely punctured, with long yellow hair. Abdomen finely, indistinctly, 

 not closely punctate, opaque, the pubescence very short and sparse. Last joint 

 of maxillary palpi fusiform, not impressed. Length .75 — .90 inch; 19 — 23 mm. 



Male. — Club of antennae nearly as long as the entire stem. Spurs 

 of hind tibite slender ; claws feebly curved, the tooth small and in- 

 traniedian. Penultimate ventral segment slightly flattened with 

 granular elevations at middle. Pygidium distinctly broader than 

 long. 



Female. — Club shorter than the funiculus. Claws more curved, 

 the tooth stronger than in the male. Pygidium distinctly as long as 

 wide. Posterior legs much stouter than in the male, the femora es- 

 pecially, the tibiffi jnuch broader at apex. Tarsi on all the legs dis- 

 tinctly shorter than in the male. 



Variations. — The only variation observed is that of color, due 

 pi'obably to the varying maturity of the specimens. The males have 

 the thorax a little more closely punctate and consequently slightly 

 less shining. 



Occurs in Georgia, Florida (and Texas?). 



Group XIII, submucida.. 



Form variable in the species, but never truly cylindrical, the sur- 

 face iridescent in suhiuucida alone, more or less shining in the others ; 

 clypeus emarginate or truncate. Last joint of maxillary palpi fji_si- 

 form or cylindrical, at most feebly impressed ; lateral margin of 

 thorax entire, at most feebly ciliate ; breast wnth moderate hair ; 

 spurs of hind tibia? fi-ee in both sexes ; tooth of claws never large, 

 always intramedian, often close to the base. 



The species all belong to the southwestern region, and are as fol- 

 lows : 



Anterior tibiiB normally dentate, the upper tooth very small. 



Surface iridescent; species larger, of robust facies, the submarginal costa well 



developed 6.3. subiniicitla. 



Surface glabrous, not iridescent nor pruinose ; species smaller and more dis- 

 tinctly ovate, the submarginal costa rarely visible. 



Surface not shining 64. glabrjnila. 



Surface very shining 65. f'licata. 



Anterior tibite with the upper tooth nearly as long, fully as acute as the middle 

 tooth. 

 Clypeus truncate; color piceous brown 66. exorata. 



