559 



Diaptumus — Continued. 

 albucjuerquensis, q8, loi, 113, 

 115, 146-149, 176, 184. 

 and D, mississippiensis, means 

 of distinguishing males of, 

 140. 

 distribution of, 1S3. 

 ambiguus, 177. 

 armatus, 133, 135, 136. 

 aslilandi, gS, iii, 120, 124, 158, 

 167-169, 260, 265. 

 distribution of. 168, 183. 

 females of, 100. 

 baciUifer, 107. 

 birgei, gg, 108, 117, 172-173. 

 caroii, 181. 

 castor, g8, 106, 130. 

 chnipcs, g8, loi, 108, iig, 127, 

 178-181. 

 distribution of, i8(. 184. 

 similarity to D. piscina? and I> 

 leptopus, 181. 

 C(L'ruleus, gg, loi, 107. 

 color of, 138. 



Cyclops, and Osphranticum, rel- 

 ative hardihood of, 100. 

 deitersi, gg. 

 diagnosis and remarks on genus 



of, 105-107. 

 distribution of tlie American 



species of, 182-184. 

 drieschi, gg. 

 eggs of, 228. 



eiseni, g8, 101, no, 115, 162 164, 

 166. 

 distribution of. 183. 

 first establishment of genus of, 



97- 

 franciscanus, g8, no, nS, 132. 

 160-162, 166, 182. 



distribution of. 183. 

 fresnanus, 176, 178, 184. 

 gibber, gg, loi. 

 giganteus, 138. 

 glacialis, loi. 



I) i a p t o m u s — Con tin ueo\ . 

 gracilis, gS, 173, 182. 



compared with I), siciloides, 155. 

 graciloides, 98. 

 incongruens, 99. 

 kentuckyensis, 97, 130, 132. 

 leptopus. g7, n2, wj, 130 132, 

 135, 181. 

 distribution of, 182. 

 fifth pair of legs of male of, 

 contrasted with those of D. 

 l)iscina?, 125, 127. 

 synonymy of, 132. 

 lintoni, \\^, n8. 127 I2g, 134, 160. 

 contrasted with I), stagnalis, 



I2g. 

 distribution of, 182. 

 literature of, <j7. 

 lobatus, loi. 

 longicornis, 132. 



var. lejitopus, 130, 132. 

 \ar. similis, 132, 162, 182. 

 niinnetonka, 133, 135, 136. 138. 

 minutus, g8, 106, ni, 116, 129, 

 134, 156-158, 160. 260, 265. 

 distribution of, 100, 1^7, 158, 



183. 

 normal habitat of, 100. 

 synonymy of. 158. 

 mirus, loi. 

 mississii)piensis g8. 109. 122, 



173 I7'''- 

 and I ). ,ilhii<iu('r<|uensis, means 

 of distinguishing males of, 

 140. 

 distril)ution of, 184. 

 most favorable seasons for col- 

 lecting, gg. 

 North .American species of, 

 1)7 207. (.Special Index, 

 ji. 208.) 

 collections examined in 

 preparation of .Schacht's 

 article on, and localities 

 represented, gg. 



