138 COLEOPTERA. 



*86. Hydroporus DERELiCTUSjClark; lSGo,7l: = eri/throce2}hahis, 

 Linn.; H. Schaum, 1870, 51. 

 Hychwijorns inihescens, Gvll., = melanoceiyhalus, j\Iarsh., nee 

 Gyll, Aube, Thorns.; D.' Sharp, ]872, 48. 



87. Hydoporus discretus, Fairm.; D. Sharp, 1870, 47 {nigrita, 

 Sturm, nee Fab.; Thorns., Sk. Col. ii; 2^uhesee7is, Thorns., Sk. 

 Col. ix): considered erroneously by T. J. Bold to be a sex of 

 nigrita, Fab., ihid. 



*88. Hydroporus glabellus. Thorns.; G. E. Crotch, 18G9, 18 : = 

 nigrita, Fab.; E. C. Eye, ibid.; 1860, 47. 



*89. Hydroporus brevis (Sahib.); G. E. Crotch, 1867, 58: errone- 

 ously identified. 



90. Hydroporus celatus, Clark; 1863, 71. 



91. Hydroporus melaxarius, Sturm; H. Clark, 185G, 82. 



92. Hydroporus monticola, Shai-p; 1870, 48. 



93. Hydroporos parallelus. Sharp; 1870, 49: renamed longi- 



cornlSf on account of the prior i)arallclu8 of Aube; id., 1872, 

 48. 

 Hgdroporus melanocejjlialns, Gyll. {niorio, Dej. Cat, nee Heer), 

 nee Steph., is renamed atricejJS ; G. E. Crotch, 1872, 24 : 

 subsequently named scapMformis ; D. Shaq), 1872, 48 (this 

 withdrawn in Sharp's Cat.). 



*94. Hydroporus eloxgatulus (Sturm); T. V. Wollaston, 1856, 

 82 : = 7nelanoeephah(s, Gyll., Wat. Cat. Syn. : T. J. Bold, 

 1869, 19; erroneously identified. 



95. Hydroporus tristis, Payk.; H. Schaum, 1855, 119. 



96. Hydroporus xeglectus, Schaum ; J. A. Power, 1867, 58. 



97. Hydroporus obscurus, Sturm; H, Schaum, 1855, 119. 



*98. Hydroporus tinctus, Clark; 1863, 72: = 2}alustris, Linn., 

 var. ; G. E. Crotch, 1867, 108. 



99. Hydroporus incognitus. Sharp; 1870, 49. 



100. Laccophilus variegatus, Germ.; G. E. TVaterhouse, 1863, 



69. 



101. ILYBIUS SUB^NEUS, Er.; J. A. Power, 1867, 57. 



»102. COLYMBETES SEXDENTATUS, Schiodtc; G. E. Crotch, 1864,80; 

 1865, 47 {IlijUus): — obsenrus, Marsh., rar. $ ; id., 1869, 15. 



103. Agabus sexualis, Eeiche ; G. E. Crotch, 1864, 80 ; 1865, 

 47: = Solieri, Aube, G. E. Crotch, i J «W..- D.Sharp, 1869, 18. 



