600 Wisconsin Academy of Sciences, Arts, and Letters, 
EXPLANATION OF PLATE XXXIII. 
Fig. 71. Lachnosterna fusca Froh.: labial structures (X 15). Anterior 
and posterior plates of the sub-mentum are of about equal size. 
Fig. 73. Anomala minuta Burm.: mandible (X 50). 
Fig. 74. Anomala minuta Burm.: labial structures (X 50); semi-dia¬ 
grammatic; the anterior plate of the sub-mentum is larger 
than the posterior plate. 
Fig. 75. JPelidnota punctata Linn.: labrum-epipharynx (X 15). 
Fig. 76. Pelidnota punctata Linn.: mandible. 
Fig. 77. Cyclocephala immaculata Oliv.: labrum-epipharynx (X 15). 
Fig, 78. Cyclocephala immaculata Oliv.: mandible (X 15). 
Fig. 79. Cyclocephala immaculata Oliv.: maxilla (X 15). 
Fig. 80. Ligyrus gibbosus De G.: labrum-epipharynx (X 50). 
Fig. 81. Ligyrus gibbosus De G.: mandible (X 15). 
Fig. 82. Ligyrus gibbosus De G.: maxilla (X 15). 
Fig. 83. Xylorectes satyrus Fab.: epipharynx (X 15). 
Fig. 84. Xylorectes satyrus Fab.: mandible (X 15). 
Fig. 85. Xylorectes satyrus Fab.: maxilla (X 15). 
Fig. 86. Xylorectes satyrus Fab.: labial structures, dorsal view (X 15), 
showing the small mentum pushed entirely in over the sub- 
mentum. The anterior plate of the sub-mentum is very much 
larger than the posterior plate. 
Fig. 87. Allorliina nitida Linn.: labrum-epipharynx (X 15). 
Fig. 88. AUorhina nitida Linn.: mandible (X 15). 
Fig. 89. Allorhina nitida Linn.: maxilla (X 15). 
Fig. 90. Allorhina nitida Linn.: labial structures, dorsal view. 
Fig. 91. Euphoria inda Linn.: labrum-epipharynx (X 50). 
Fig. 92. Euphoria inda Linn.: mandible (X 50). 
Fig. 93. Euphoria inda Linn.: maxilla (X 15). 
Fig. 94. Euphoria inda Linn.: labial structures, ventral view (X 15). 
Fig. 95. Osmoderma scabra Beauv.: labrum-epipharynx (X 15). 
Fig. 96. Trichius piger Fab.: labrum-epipharynx (X 15). 
Fig. 97. Trichius piger Fab.: mandible (X 50). 
Fig. 98. Trichius piger Fab.: maxilla (X 15). 
Fig. 99. Trichius piger Fab.: labial structures, dorsal view (X 15). 
Fig. 100. Valgus squamiger Beauv.: labrum-epipharynx (X 150). 
Fig. 101. Valgus squamiger Beauv.: mandible (X 150). 
Fig. 102. Valgus squamiger Beauv.: maxilla (X 50). 
