PLATE 6 



EXPLANATION OF FIGURES 



101 Homalomya sp., diploid, somatic, early prophase, similar to figure 100; 

 only portion of figure shown. 



102 Same, slightly later stage, somatic, larval, nucleus not entire. 



103 Same, haploid, prophase; only part of figure shown, second spermatocyte. 



104 Same, haploid, second spermatocyte metaphase (late) showing division 

 of the chromosomes. 



105 Same, second spermatocyte, anaphase; entire nucleus. 



106 Fucellia marina, diploid, somatic, early prophase, entire nucleus. 



107 and 108 Same, somatic, later stages. 



109 and 110 Same, somatic, prophases, multiple chromosome number, prob- 

 ably tetraploid. 



Ill and 112 Ophyra leucostoma, diploid, telophases, ovarian cells. 



113 Same, spermatogonium, metaphase, showing division of chromosomes. 



114 Same, haploid, first spermatocyte (reduction division), compare with 

 figure 113. 



115 Neuroctena analis, haploid, metaphase, second spermatocyte. 



116 Same, diploid, spermatogonium. 



117 and 118 Chaetopsis fulvifrons, diploid, metaphase, spermatogonia. 



274 



