, 12, 
, 118 
ig. 14. 
ig. 15. 
ig. 16. 
ig. 17. 
18s 
. 19. 
, 20; 
SCOTT—COLEOPTERA ; HYDROPHILIDA, HISTERID AG 235 
Bourdonnaisia mahensis, gen. et sp. nov., g, x 24. 
. 55 antenna ~ and @. 
A 5 labrum. 
“ mandible. 
silhouette, maxilla. 
i mahensis, last 3 joints of maxillary palp. 
f ye labium. 
A: e hind tibia and tarsus. 
elevated part of mesosternum, and metasternum; middle coxe 
» 
22 By) 
removed: S, meso-metasternal suture. 
Fig. 21. Bourdonnaisia silhouette, same parts as in preceding figure. 
Fig. 22. Paroosternum degayanwm, gen. et sp. nov.; under-surface, showing pro-, meso-, and 
metasterna. ‘ 
Fig. 23. Paromalus gardineri, sp. nov., g’, front tibia, seen from in front. 
Fig. 24. . calciger, sp. nov., ~, front tibia: a, seen from in front; 6, seen from behind. 
Fig. 25. 5 x gf, mesosternum. 
Fig. 26. Acritus (Halacritus) algarum Schmidt: outline of elytron and wing to same scale. 
Fig. 27. 5 (diletes) daubani, sp. nov. 
Fig. 28. - Ee 5 pro- and mesosterna. 
Fig. 29. A = davidsont, sp. nov. 
Fig. 30. 3 x 5 pro- and mesosterna. 
Fig. 31. - s Sryert, sp. nov. 
Fig. 32. “a 3 - prosternum. 
