LIST OF HOMOPTEROUS INSECTS. 279 
Genus RHOPALOSIPHUM, 
Rhopalosiphum, Koch, Pflanzenl. 23. 
Aphis, Group 20, p., Cat. Hom. 962. 
1. RuopaLosipHum Croursm. 
Rhopalosiphum Cicute, Koch, Pflanzent. 24, 1, pl. 5, f. 31, 32. 
On Cicuta virosa. 
2. Raopatosippum NymPaaza. 
Rhopalosiphum Nymphee, Koch, Pflanzenl. 26, 2, pl. 5, f. 33—35, 
44, 13, pl. 8, f. 57. 
Aphis Nymphwe, Cat. Hom. 984. 
3. RuopatosipHum Narapum. 
Rhopalosiphum Naiadum, Koch, Pflanzen. 45, 14, pl. 8, f. 58. 
Aphis Nymphee, Cat. Hom. 984. 
4, Ruopatosipxum Hrerornars. 
Rhopalosiphum Hippophaés, Koch, Pflanzenl. 28, 3, pl. 5, f. 36, 
37. 
On Hippophaé Rhamnoides. 
5. RuoraLosipxum Brrpenripis. 
Rhopalosiphum Berberidis, Koch, Pflanzenl. 30, 4, pl. 6, f. 38, 39. 
Aphis Berberidis, Cat. Hom. 996. 
6. RuopatosipHum STAPHYLER. 
Rhopalosiphum Staphylew, Koch, Pflanzen. 32, 5, pl. 6, f. 40, 41. 
On Staphylea pinnata. 
7. RaoraLosiphum XyYLosteEl. 
Rhopalosiphum Xylostei, Koch, Pflanzenl. 33, 6, pl. 6, f. 42, 43. 
Aphis Xylostei, Cat. Hom. 992. 
2B 2 
