aa) Prothorax basi justa atigulos posticos reetiusculo.s baud 
vel vix sinualus. Elyra pallido-irrorata, vel limbo flavo. 
Genus Kaktus. 
Genus dyniatoptcnis. 
1. C. fuscus pag. 44. 
Obs. Abdumine segmento 2: o utrinque prope siuum le- 
vern strigulis quasi crenulato a sequentibus mox 
distinctus. 
2. C. striatus pag. 44. 
Obs. Elytiis femina} longe ultra medium profunde trans- 
versim strigosis; a sequente pedibus totis ferrugi- 
neis, statura majore, tarsis anticis niaris fortius di- 
latatis optimo distinguendus. 
3. C. dolabratus pag. 44. 
A prsocedeuto , cui clytrorum in temina sculptura si- 
milis, femoribus anterioribus subtus 1'uscis, statura minore 
et paullo angustiore , prothorace minns distincte cieatricoso- 
strigoso optime distinguendus. 
3 b. C. Groenlandicus: Oblongus, supra fuscus, oleo-mi- 
cans, prothorace vix cicatricoso , testaceo, fascia me- 
dia abbreviata nigvo-fusca; olytris reraote transversim 
strigosis; pedibus testaccis, femoribus subtus nigro- 
piceis. 
Mas: tarsis anticis unguiculis subimequalibus. 
Femina: elytiis mqualiter transversim strigosis. 
Colymbetcs Groenlandicus Aubé Spec. Hydr. 233. 11, 
