CLAS. III. SYNIST. Monoculus . 513 



Habitat in Europas aquls dulclbus . 



3. Monoculus antennis dichocomis , cauda elon- Uvis , 

 gata sub corpore inflexa . f abr,Sp. Ins. 1,^.^7 1, 



MonocHlHs exspinosHS brachiis dichocomls , cauda 

 simpiici inflexa , testa poscice rocundaca non 

 spinosa , Degeer. Jns. 7. p« 457« i« tab. 27. 

 fig. 5?. 10. 1 1. 



Habitac in Europa? aquis . Pr^cedenti affinis . 



4. Monoculus ancennis dichocomis , cauda infle- hitpino- 

 xa , testa postice bidentaca , capice acuminaco , j«j . 

 Fabr. Sp. Ins. 1. p. 373. 



MonocHlus hispinosHs brachiis dichotomis , capice 

 roscraco , cauda inflexa , testa postice blspino- 

 sa . Degeer, Ins, 7, p. 463. 3. tab. iS, fig. 5. 4. 



In Europ^ aquis . 



5. Monoculus antennis dichotomis , eauda refle- PedicU' 

 xa , Fdr.Sp,Ins, l. p. 374. Linn. Sjst. Nat, Ihs , 



2. p. 1058. j. 

 MonocHlns pedicHlns ramosHS brachils dichotomis , 

 cauda bifida rectiuscula exserta , pedibus nudis. 

 Degeer. Ins. 7. p. 467. 4. tab. 28, fig. 9. lo. 

 SHlz.ers. Hist. Ins. tab, 30. fig, 8, 

 In Europs aquis dulcibus . 



6. Monoculus antennis quarernis , cauda recta qHadri' 

 bifida . Fabr. Sp. Ins, i, p. 374. Linn. Syst. cornis . 

 N^^t, 1. p. 1058, 6, 



MonocHlns cornubus quaternls mobilibus secacels, 

 corpore ovaco , cauda longa , recca , cyllndri- 

 ca , bifida . Degeer. Ins. 7. p. 483. 7. tab. zp. 

 fig. II. II. 



Geoffr. Ins. 1. rab. xi, fig. j. 

 In Europae aquis stagnancibus frequens . 

 ^tennA candaqHe ritfescHnt . 



X 1 7. Mo- 



