592 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxvi. 



Plate 52. 



Fig. 96. Spongiphora hrunneipennis, metatergum and first abdominal tergum. 



97. CyUtne robinicc, mesopler.runi, external. 



98. Spongiphora apicidentata, metapleurum, lialf of sterninn, and base of 



leg. 



99. Bupresfis aurulenta, protlioracic coxa and trochantin. 



100. Spongiphora apicidentata, metapleurum, internal. 



101. Cyllene roMniw, mesopleurum, internal. 



102. Calosoma scrutator, mesopleurum, external. 



103. Calosoma scrutator, mesopleurum, internal. 



104. Buprcstis aurulenta, mesothoracic coxa and trochantin. 



Plate 53. 



Fig. 105. Ilydropliilus triangularis, mesopleurum and sternum, external. 



106. Silpha surinamensis, mesopleurum, external. 



107. Dytiscus dauricus, mesopleurum, external. 



108. Dytiscus dauricus. mesopleurum, internal. 



109. Buprcstis aurulenta, mesopleurum, external. 



110. Calosoma scrutator, metapleurum, internal. 



111. Hydrophilus triangularis, metapleurum, external. 



112. Hydrophilus triangularis, metapleurum, internal. 



113. Calosoma scrutator, metapleurum, external. 



Plate 54. 



Fig. 114. Dyiiscus dauricus, metapleurum, external. 



115. Dytiscus dauricus, metapleurum, internal. 



116. Cyllene rohinicr, metapleurum, external, 



117. Melolontha vulgaris, metapleurum, internal. 



118. Dendroctonus valens, metapleurum, external. 



119. Cyllene robiniw, metapleurum, internal. 



120. Dendroctonus valens, metapleurum, internal. 



121. Melolontha vulgaris, metapleurum, external. 



Plate 55. 



Fig. 122. Dendroctonus valens, pupa, meso- and nietaterga with wings, and 

 first and second abdominal terga. 



123. Tetropium vclutinum, pupa, meso- and nietaterga with wings, and 



first three abdominal terga. 



124. Dendroctonus valens, unemerged adult taken from pupal skin, meso- 



tergum and base of right elytrum. 



125. Hydrophilus triangularis, mesotergum. 



126. Dendroctonus valens, pupa, mesotergum and bases of elytra, ventral. 



127. Calosoma scrutator, mesotergum and axillaries of right elytrum. 



128. Dytiscus dauricus, mesotergum and axillaries of right elytrum. 



129. Cyllene rohinw, mesotergum, right axillaries, right parapteruni and 



base of elytrum. 



130. Cyllene rohinicr, mesotergum, ventral. 



131. Dytiscus dauricus, mesotergum, left axillaries and base of elytrum, 



ventral. 



