210 WILLIAM J. FOX. 



SYNOPSIS OF THE SPECIES.* 



FEMALES. 



Eiiiniermii iiu'sopleuralis armed with a distinct crest or ridge before the middle 



coxse, striated, punctato-striato, or striato-punctate 2. 



Epimerum mesopleuralis not crested or ridged, at most with a small, pointed 



projection before the middle coxge, punctured, rarely striated 33. 



S.^Anterior margin of clypeus produced into a strong, truncated process in the 



middle 3. 



Anterior margin of the clypeus not strongly produced in the middle, usually 



rounded 14. 



3. — Head and thorax very coarsely sculptured, being covered with large punc- 

 tures, the doreulum, scutellum and mesoplenne frequently with strong 



striations interspersed with punctures 4 



Head and thorax not veiy coarsely sculptured, the liead rather finely and 



closely punctured ; mesopleuris striated 7 



4. — Pronotum very large, strongly crested, and with the lateral tooth large and 

 strong; a broad band on dorsal abdominal segments 1-5 and ventral 

 segments 2-6 more or less, and greater pai-t of femora, yellow. 



cinctelln!^. 



Pronotum not remarkably large, its crest, however, shaqi. tlie lateral tooth 



small; at the most, the fourth and fifth dorsal abdominal segments 



banded, the ventrals never maculated ; greater part of femora black 



rarely otherwise 5. 



5. — Abdomen with strong, distinctly separated punctures; middle segment on 



the sides strongly striated ' 6. 



Abdomen finely and closely punctured, shining; middle segment on sides 

 not strongly striated, smooth medially (none of the abdominsil spots 



united into bands) . • prodiicticollis. 



6. — Punctures of the head extremely large, deep and well separated, those on 

 the abdomen also coarse but less so than on the head ; s])ots on dorsal 



abdominal segments 4 and o always separated iiiterruptus- 



Punctures of the head strong, but nuich less than in interri(pfi(K, and closer, 

 especially between the ocelli and occiput ; punctures of the abdomen 

 somewhat finer than those of the head ; dorsal abdominal segments 4 



and 5 with the spots united into bands bellus. 



7. — Ocelli forming a low triangle, tending to a curved line ; pronotum distinctly 

 dentate laterally; first joint of ttugellum distinctly shorter than the 



following three combined 8. 



Ocelli forming an equilateral triangle; pronotum rounded at the sides, not 

 dentate: first joint of flagellum as long, or nearly so, as the combined 



length of the following three joints 12 



8.— Space between the eyes at base of clypeus at least equal to the length of 

 joints 1 and 2 of flagellum united; transverse impressions of pronotum 



narrow, not strong 9. 



Space between the eyes at base of clypeus not equal to the length of joints 

 1 and 2 of flagellum united ; pronotal impressions broad, especially to- 

 ward the sides 11. 



■•■•" The species, which the author lias been unable to identify, are not included 

 in this table. 



