78 



Dytiscid.e 



Deronectes Shp. 82-418 



2428. depressus (Fab.) 75-233 Nfld. N. Y. 



brevis (Sturm) 35-9 [L. Sup. 



rotundatus (Lee.) 63-21 Can. 



29. catascopium (Say) 23-103 Wis. Vt. N. Y. 

 prosternalis Shp. 82-434 " N. A." 

 suffusus Shp. 82-434 " N. A." 

 interruptus (Say) 34-445 



])arallelus (Say) 23-98 



30. griseostriatus"(DeG.)74-103 Lab.N.H.Can. 



Or. 



31. .striateUus (Lee.) 51-207 Cal. Ariz, 

 pulcher (Mots.) 59-363 [Mont. 



32. a-quinoetialis(Clk.) 62-178 Ariz.Me.\-. 



Guat. 

 Hydroporus C'lairv. 06-182 



2433. auUcus Aube 38-572 Ga. Tenn. 



34. diversicornis Shp. S2-437 Te.x. 



35. triangularis Fall 17-170 Wis. 



36. pilatei Fall 17-170 La. 



37. wickhamiZaitz. 08-118 Pa. Va. 111. 

 concinnus || Lee. 55-297 [Kans. Minn. 



38. ohionis Fall 17-172 Ohio. 



39. cocheconis Fall 17-171 N.H. 



40. pulcher Lee. 55-297 N.Y. 111. Ala. 



41. integer Shp. 82-438 Vt. Pa. 



42. shermani Fall 17-172 N.Y. Ind. T. 



43. lineolatus Lee. 5.5-296 111. Ga. 

 vittatipennis G. & H. 68-442 



44. mellitus Lee. 55-299 Vt. Ind. Ga. 



45. dixianus Fall 17-173 Ga. 



46. eimicoides Shp. 82-439 N.J. Va. Fla. 



47. undulatus Say 23-102 Ind. Mass. 

 fasciatus Harr. 28-164 [Fla. 

 pubipennis Aube 38-480 



velutinus Aube 38-481 



48. oppositus Say 23-102 



49. lobatus Shp. 82-439 Mass. 



50. scrutator Shp. 82-440 " N.A."? 



51. lynceus Shp. 82-440 " N.A." 



52. clypealis Shp. 82-441 Mass. 



53. anticus Shp. 82-441 Pa. La. 



54. consimilis Lee. 50-214 L.Sup. Or. 

 placatus Fall 17-177 Or. 



55. eruditus Shp. 82-442 Pa. 



56. republicanus Shp. 82-442 " N.A." Fla. 



57. proximus Aube 38-483 N.H. Mass. 



Ind. 



58. spurius Lee. 55-296 Vt. Mass. 

 peltatus Shp. 82-441 [N.Y. 



59. dilatatus Fall 17-174 N.H. Mass. 



a. suffusus Fall 17-175 N.J. [Md. 



60. sulcipennis Fall 17-175 N.H.N.Y.Va. 



61. hybridus Aube .38-5 13 111. la. 



62. semiflavus Fall 17-176 111. Mo. 



63. mixtus Lee. 55-296 Nebr. Kans. 



64. carolinus Fall 17-180 N.C. 



65. vittatus Lee. 55-296 Nebr. Minn. 



111. 



66. sericeus Lee. 50-214 Man. L..Sup. 



67. solitarius Shp. 82-445 L.,Sup. Mass. 



Nfld. 



68. venustus Lee. 55-295 N.J. Va. N.C. 



69. arizonicus Fall 17-178 Ariz. 



70. semirufus Lee. 55-296 Nebr. Kans. 

 dimidiatus G. & H. 68-432 [Conn. 



71. striatopunetatus Melsh. 46-28 



Ind. N.Y. Va. 



72. tigrinus Fall 17-178 Va. 



73. vitiosus Lee. 55-296 Can. 111. 



Hydroporus Clairv. 



2474. blanehardi Sherm. 13-52 Mass. Ala. 

 vitiosus Shp. nee Lee. 82-443 



75. e.ximius Mots. 59-164 Cal. 



76. addendus Cr. 73-393 B.C. L.Cal. 



77. funereus Cr. 73-392 L.Cal. 



78. mexicanus Shp. 82-447 Mex. Ariz. 



79. roffiClk. 62-176 Mex. Ariz. 



80. eorvinus Shp. 87-754 Tex. Ariz. 



81. alpinus (Payk.) 98-226 L.Sup. Nfld. 



82. 12-lineatus Lee. 50-214 L.Sup. 

 ?liEvis Kby. 37-67 



83. septentrionalis (Gyll.) 27-385 



Nfld. N.H. 

 ?scitulus Lee. 55-295 L.Sup. [N.Y. 



84. picturatus Horn 83-283 Nev. 



85. rivalis (Gyll.) 27-384 Cal. 

 obesus Lee. 66-365 Cal. 

 congruus Lee. 78-452 Colo. 



86. 4-maculatus Horn 83-284 Nev. 



87. occidentalis Shp. 82-456 B.C. 



88. longicornis Shp. 70-205 Lab. 



89. ealiginosus Lee. 50-214 L.Sup. 

 puberulus Lee. 50-215 L.Sup. 



90. morio Shp. 82-471 Lab. N.H. 

 atrieeps Cr. 70-96 Greenland. 



91. tartaricus Lee. 50-214 L.Sup. 

 ?nigellu3 Mann. 53-163 Alas. 



92. obscurus Sturm 35-65 Mieh. Nfld. 



93. tenebrosus Lee. 50-214 L.Sup. Lab. 



Mass. 

 ?lutulentus Lee. 55-298 L.Sup. 

 luridipennis II Lee. 50-216 L.Sup. 

 ?hirtellus Lee. 51-208 Cal. 



94. subpubescens Lee. 51-208 Cal. 



95. despectus Shp. 82-466 Can. Mass. 



96. perplexus Shp. 82-467 Lab. Cal. 



97. rustieus Shp. 82-467 Nev. 



98. appalachius Sherm. 13-53 N.H. Can. 

 signatus Shp. nee Mann. 82-469 



99. longiuseulus G.&H. 68-436 Alas, 

 oblongusll Aube 38-605 



2500. glabriuseulus Aube 38-312 Alas. 



01. tristis (Payk.) 98-232 Can. Mich. 

 Vvarians Lee. .50-214 L.Sup. [Mass. 

 ?rufieapillus Mann. 52-304 Alas. 



02. subtonsus Lee. .55-292 L.Sup. Vt. 



03. eontraetulusMann. 52-304 Alas. [N.Y. 



04. rufinasus Mann. 52-305 Alas. 



05. americanus Aube 38-575 Ind. Mass. 



06. dentellus Fall 17-181 N.H. Mass. 



07. fortis Lee. 51-207 Cal. Or. 



08. signatus Mann. 53-161 Can. 111. N.Y. 



09. fuscipennis Kies. 68-64 Mass. 

 ?puberulus Mann. 53-163 



10. dichrous Melsh. 46-28 Ind. Mass. 



11. melsheimeri Fall 17-182 Mass. 



12. inornatus Shp. 82-478 Mass. 



13. a.xillaris Lee. 53-132 Alas, 

 humeralis II Lee. 51-207 Colo. 



14. niger Say 23-102 Ind. Mass. 

 modestus Aube 38-576 [Can. 

 punctatissimus Aube 38-484 



15. latifrons Shp. 82-478 " N.A." 



16. rufieeps Shp. 82-479 Mass. Va. 



17. rufilabris Shp. 82-479 Tex. 



18. notabilis Lee. 50-216 L.Sup. 



19. aretieus Thorns. 54-197 Lab. 



20. humeralis Aube 38-578 Lab. B.C. 



Alas. 



