1904.] 



OF THE GENUS HIPPORRHIKUS. 



17 



88. (89.) 



89. (88.) 



90. (87.) 



91. (92.) 



92. (91.) 



93. (86.) 



94. (101.) 



95. (98.) 



96. (97.) 



97. (96.) 



98. (95.) 



99. (100.) 



100. (99.) 



101. (94.) 



102. (107.) 



103. (106.) 



104. (105.) 



105. (104.) 



106. (103.) 



107. (102.) 



108. (131.) 



109. (122.) 



110. (111.) 



111. (110.) 



112. (115.) 



113. (114.) 



114. (113.) 



115. (112.) 



116. (119.) 



117. (118.) 



118. (117.) 



119. (116.) 



120. (121.) 



121. (120.) 



122. (109.) 



123. (128.) 



Proc. 



Interval 2 with a row of conical tubercles from behind 

 middle to apex; apical processes short. 42. H. humeralis, sp. nov. 



Intei-\'al 2 with only a single large conical tubercle 

 on the declivitj^ ; apical processes very long and 

 sharp 43. S. nestor Mshl. 



Prothorax with a smootli defined space on each side of 

 central furrow ; interval 2 entirely devoid of tubercles. 



Interval 5 with only two or three large distant conical 

 tubercles in addition to the basal one ; prothorax 

 without a central carina 44. H. nodulosus P. 



Interval 5 with a row of seven or eight small closely- 

 set tubercles behind the basal one ; prothorax with 

 a central carina 45. S. occidenfalis 'Mshl. 



Elytra with shoulders normal. 



Sides of prothorax angulated ; the central furrow very 

 broad and distinct, more or less dilated in middle. 



Intervals 2, 4, and 6 entirely devoid of tubercles. 



Rostrum without a central carina ; tubercles on elytra 



large, separated and conical throughout. 46. H.Jictilis Mshl. 



Rostrum with a low central carina ; tubercles on 

 elytra from base to beyond middle small and agglo- 

 merated, the intervals costate 48. T£. liornilA%\\\. 



Interval 2 always, interval 4 usually with a row of 

 distant rounded tubercles. 



Prothorax with a strong central carina. 47. S. canaliculatus Mahl. 



Central carina on prothorax obsolescent. 49. S. rubifer F. 



Sides of prothorax rounded, the central furrow narrow 

 and much more shallow. 



Intervals on elytra granulate, granules subequal 

 throughout. 



All intervals on elytra similar, subcostate and evenly 

 granulate throughout. 



Anteoeular furrows not converging ; rostrum con- 

 tiguous dorsally with head throughout its breadth ; 

 apical processes of elytra very long ... 50. S. eclcloni Gyl. 



Anteoeular furrows converging so as to leave only a 

 narrow dorsal ridge joining head and rostrum ; 

 apical processes short 51. if. bokemanii Fahr. 



Intervals 4 and 6 not elevated and without any 



granules 52. S. cMrindensis Mshl. 



Intervals on elytra tuberculate, tubercles uneven ; 

 intervals dissimilar. 



Transverse basal furrow on the underside of rostrum 

 absent. 



Dorsal anterior margin of prothorax lobate or convex. 



Anteoeular furrows distant, invisible from above. 



67. S. eaudatus F&hr. 



Anteoeular farrows approaching, visible from above 

 in the form of a more or less marked constriction at 

 base of rostrum. 



Lower lateral sulcus on rostrum obsolescent. 



Prothorax with a broad horseshoe-shaped costa en- 

 closing the central carina 69. S. tricostatus Mshl. 



Prothorax with large rounded tubercles on each side 



of the carina 68. S. scaber, sp. nov. 



Lower lateral sulcus on rostrum distinct. 



Upper lateral sulcus on rostrum distinct. 



Prothorax aliuost as long as broad, the tubercles large 



and subcristate ; size smaller 70. S.fei'usGyl. 



Prothorax distinctly transverse, the tubercles small 



and evenly set ; size larger 71. S. mammillatus G j'l. 



Upper lateral furrow on rostrum obsolescent. 



Dorsal margins of rostrum strongly raised in the form 



of angulated carinse ; length 23 mm. 72. if. Zoia^Ms Mshl. 



Dorsal margins rounded; length 14mm. 73. JT. exiJis, sp. nov. 



Dorsal anterior margin of prothorax truncate and 

 not lobate. 



Rostrum with a deep central furrow throughout. 



ZooL. Soc— 1904, Vol. I. No. 11. 2 



