66 DESCRIPTION OF PLATES. 



PLATE XI. 

 Euphoria inda. 



PIGS, iio-in. First spermatocyte, prophases. 



112-113. First spermatocyte, late prophase. 

 114-116. First spermatocyte, metaphase. 



117. First spermatocyte, equatorial plate, x the unequal pair. 

 1 18-120. First spermatocyte, anaphase. 



121. First spermatocyte, daughter plates. 



122. Second spermatocyte, prophase. 



123. Second spermatocyte, equatorial plates. 



124-125. Second spermatocyte, daughter plates of the two classes. 

 126-127. Second spermatocyte, anaphase. 

 128-130. Spermatids, n the chromatin nucleolus. 



Ble^harida rhois (Family Chrysomelidce). 



131-132. First spermatocyte, spireme stages, showing the heterochromosome 



group. 

 133-135. First spermatocyte, beginning of metakinesis. 



136. First spermatocyte, equatorial plate, x the unequal pair. 



137. First spermatocyte, late anaphase, showing the heterochromosomes / 



and s. 



138. Second spermatocyte, equatorial plates. 



139-140. Second spermatocyte, daughter plates of the two classes. 



Stl-pha americana (Family Silphidce). 



141. Equatorial plate of spermatogonium, 40 chromosomes 39 large, i 



small. 



142. Resting nucleus of spermatogonium, showing 2 plasmosomes (p). 

 143-144. First spermatocyte, spireme stage. 



145. First spermatocyte, prophase. 

 146-147. First spermatocyte, metaphase. 



148. First spermatocyte, equatorial plate. 



149. Second spermatocyte, equatorial plates. 



150. Second spermatocyte, showing metakinesis of the small chromosome. 



