154 CHROMOSOMES IN THE SPERMATOCENESIS OE THE HEMII'TEKA HETEKOPTERA. 



Group and Species. 

 TUNICATA. 



Styelopsis grossularia. . . 

 Styelopsis grossularia... 

 Phallusia mammillata.. 

 Ascidia 



Arachnida. 



Agalena njevia 



Lycosa insopita 



Chilopoda. 



Scolopendra heros 



Scutigera forceps 



Insecta. 



1. CoJeoptera. 



Dytiscus 



Oryctes nasicornis 



Tenebrio inolitor 



Hj'dropbilus 



Cybister roeselii 



Silpha carinata 



Agelastica alni 



Agelastica alni 



Donacia 



Lampyris spleiididula.. 

 Crioceris asparagi 



2. Odonata. 



Anax Junius 



3. Hymenoj^tera. 



Apis mellifica 



Lasius niger 



Rbodites rosaj 



4. Isoptera. 

 Termopsis angusticollis 



5. Lepndoptera. 



Bombyx mori 



Pieris brassicje 



Pieris bi'assicje 



Pieris uapi 



6. Orthoptera. 



(Gryllida'.) 



Gryllus assimilis 



Gryllus domesticus 



Gryllotalpa vulgaris 



(Mautidaj.) 

 Mantis religiosa 



(Blattida'.) 

 Perijjlaueta americana. . 



Blattella germauioa 



(Locustida'. ) 



Orcliesticus 



Orphania denticauda.... 

 Steuopelmatus 



Cycle. 



Ov. 

 Sp. 

 Ov. 



Sp. 



Ov. 



Sp. 



Ov. 

 Sp. 

 Ov. 



Sp. 



Ov. 



Sp. 



li 



Ov. 

 Sp. 

 Ov. 



Sp. 



a 

 t < 



Sp.Ov. 



Sp. 



Authority. 



Juliu, 1893. 



Hill, 189G. 

 Boveri, 1890. 



L. B. Wallace, 1905. 

 Montgomery, 190.5. 



Blackman, 1905. 

 Medes, 1905. 



Giardiua, 1901. 

 Prowazek, 1901. 

 Stevens, 1905&. 

 Vora Eatb, 1892. 

 •Voiuov, 1903. 

 Holmgren, 1902. 

 Heuking, 1892. 



McGill, 1904. 



Petrunkewitsch, 1901. 

 Henking, 1892. 



Stevens, 1905t. 



Toyama, 1894. 

 Henking, 1890a. 



" 1891. 



" 18906. 



Baumgartner, 1904. 



it a 



Vom Rath, 1892. 

 Giardina, 1898. 



Moore and Robinson, 1905. 

 Stevens, 19056. 



McClung, 1902. 

 de Sinety, 1901. 

 Stevens, 19056. 



Gonium 



40 

 2(3 



33 

 37 



ca. 40 

 12 

 20 

 16 



ca. 22 

 32 



ca. 24 



28 



.55 



26-28 



30 

 50 



29 

 21 

 12 



14 



ca. 32 

 23 



ca. 33 

 31 

 46 



Cytel 



4 

 8 

 9 



20 

 13 



Cyte II 





 10 

 32 

 13 



16 



12 



lG-17 



15 



(J-8 



14 



IG 

 10 

 ca. 9 



26-28 

 14 



14-15 

 25 



15 

 11 

 24 



14 



16 

 12 



17 

 16 

 24 



19, 21 

 13 



17 16, 17 

 19 18,19 



10 

 16 



16 



12 

 17 



6-8 



8 



14 



16 

 10 



26 



28 



14 



14-15 



14,15 



10,11 



12 



14 



16 

 11,12 



16, 17 



15,16 



23 



Tid. 



2 

 1 



?8 



19, 21 



16,17 



10 

 8 



16 



12 

 17 



6-8 



13,14 



8 



14 



14 



14-15 



14,15 

 10,11 

 6 



16 

 11,12 



16, 17 

 24 



I 



