182 J. L. LECONTE, M, D. 



3. — First dorsal segment % deeply excavated ; second also deeply and widely 

 excavated ,• color nearly b Jack, elytra dark red, palpi testaoeotis; 1.8 mm.; 



Western States...., 9. Illinoien.sis Brend. 



First dorsal % excavated, with a tubercle in middle of excavation; second 

 deeply, widely excavated ; third very protuberant, largely bilobed ; color 



ferruginous; 1.8 mm.; Mass.; N. Y.; D. C 10. abdoiiiinalis ^u&c. 



4. — First dorsal % with tubercles near hind margin, and two deflexed apical 

 processes, between which ia a deep excavation ; second not excavated ; 

 third very protuberant, eancave each side, truncate and suddenly 

 declivous behind, with a broad triangular impression; color ferrugi- 

 nous; 1.8 mm.; D. C. ; one specimen 11. intermedia ^rewrf. 



First dorsal %, with tubercles near the base; semicireijlarly excavated, and 

 subacutely bilobed behind, and flattened near the sides; second v&ry 

 protuberant, bilobed, deeply excavated at the middle; color ferrugi- 

 nous; 1.8 mm.; Fla 12. floi*i<laiia -B/-c?2(/. 



C. — Prothorax with three equal but smaller fovese; body more elongate: 

 first dorsal with two very short distant lines at base; color ferruginous.; 

 '^ antennal club irregular, front trochanters armed with an acute spine; 

 ventral segments 1 — 4 flattened at the middle. 



% Lastjoint of antennae ovate; 2 mm.; Mass.; D. C.l;?. Imiigera -Lee. 



% Last joint of ant. reniform; 2 mm.; D. C 14. eavieoruis Brend. 



I>, — Prothorax with large lateral fovese and a small medial one. 



Head trifoveate 2. 



Head bifoveate, the frontal fovea being absent; first dorsal with two 



distant short lines 13, 



2. — First dorsal with two approximate diverging lines 3. 



First dorsal with two widely distant short lines 7. 



3. — Lines of first dorsal proceeding from a small rounded ciliated tubercle; no 



sexual diiferences in antennae 4. 



Lines of first dorsal proceeding from a transverse tubercle (i. 



4. — Prothorax not punctured 5. 



Prothorax distinctly punctured, medial fovea conspicuous; red brown, an- 

 tennse and legs ferruginous; % last ventral feebly impressed ; 1.2 mm.; 



Mich.; one specimen 15. geinmifer n. sp, 



5. — Larger, medial fovea of prothorax conspicuous; color ferruginous; ab- 

 dominal lines long; antennse and legs paler; ■£ last two ventrals 

 broadly concave with an elongate medial elevation; 1.5 mm.; 111.; 



one specimen 16. radians n. sp. 



Smaller, medial fovea of prothorax conspicuous; piceous, antennse and legs 

 yellowish ferruginous; elytra more strongly punctured; abdominal 

 lines short; % last ventral broadly but not deeply concave : 1.2 mm.; 



Mass 17. divergent n. sp. 



Smaller, medial fovea of prothorax very small; uniform ferruginous; elytra 

 less strongly punctured; % last ventral feebly impressed; 1.3 mm.; 



Florida 18. atlantica .Brent/. 



6. — Ferruginous, or darker with red elytra; % last dorsal broadly emarginate 

 at tip; last ventral feebly impressed; 1 — 1.3 mm.; Atlantic region. 



19. ruUicuutla A nbc. 



Smaller, ferruginous; % last dorsal as in ruhicunda : 0.9 mm.; Mass.; 



D. C; 111 20. congener Brcnd. 



