Coleopterologiccd Notices^ VI. 43 1 



Body blackish throughout, occasional!}- ^\ith the elytra and abdomen 

 slightly rufescent. 

 Abdominal setie short sjjarse and inconspicuous toward base. 



Fifth ventral of the male sinuate at apex, the sixth with a deep 



rounded median sinuation 4. iiii1)i'icata 



Fifth ventral unmodified at apex, the sixth with a broad and shal- 

 low sinuation four or live times as wide as deep. 



5. liiuiiloides 

 Abdominal setse long and bristling throughout the length. 



6. velocipes 

 Bod}' more or less pale in color throiighout. 



Species of the Pacific coast 7. cai^tanea 



Species of the Atlantic coast. 



Outer edge of the epipleurse not lower than the inner, the epipleu- 

 ral surface evenly and symmetrically excavated through a large 



part of its extent 8. virgiiiiap 



Outer edge descending slightlj' Ijelow the inner toward base, the 

 excavation near the inner edge ; much smaller species. 



9. luacer 

 II. Epipleurte narrow, glabrous, liecoming subvertical to^vard liase, the outer 

 margin generally descending very far below the inner. 

 Elytra without marginal setne. 



Black, each elytron with a median red spot at the base. 



Large species. Em-ope and the Pacific coast 10. bipiistulata 



Small species. Atlantic regions 11. basalis 



Black or paler, the elytra unicolorous or suft'usedly pale at the base 

 throughout the width. 

 Species large or moderate in size, al\\'ays distinctly more than 1 mm. in 

 width. 



Epipleurse extending to the eh'tral apex 12. occulta 



Epipleura.' not attaining the elytral apex. 



Epistoma fully one-half wider than long ; antennte slender, with 



the eleventh joint twice as long as wide — 9 l-^- crassa 



Epistoma ])ut slightly Avider than long ; antenna; shorter and less 

 slender, the eleventh joint much shorter ; body very much 



smaller — J 14. versicolor 



Si^ecies small, always less than 1 mm. in width. 

 Elytra with rather finely imbricate sculpture. 



Elytra longer than the prothorax 15. tlebilis 



Elytra equal in length to the prothorax ; body less o\'al and more 



rectilinear at the sides Ki. »$ll1)tilis 



Elytra short and trans\erse, Avith very coarsely imbricate sculpture. 



17. parvula 

 Elytra with a single series of five or six long l)lack set;c along the lateral 

 edge ; body i)ale, the elytra feebly nubilate with a blackish design. 



1^. scrip ta 



