um.\ 67 



Var. 1. Flavo-fuscus ; hemelytra utrinque maculis 2 lateralibus albidii^. 



(Cercopis spumaria, Fab.) 

 Var. 2. Niger, capite thorace hemelytrorum margiue albis. (C margi- 



nella. Fab.) 

 Var. 3. Niger, oculis tautum pallidis. (C lencophtlialma, Fab.) 

 A^ar. 4. Niger, capite pronotiquebasi pallidis. (CZeMcocepAaZa, Lin., Fab.) 

 Var. 5. Pallidus ; pronotum, scutellum, et hemelytra medio, longitudi- 



naliter nigro unistriato. {G. lineata, Fab.) 

 Var. 6. Supra cinereus, vitta atra. (C. vittata, Fab.) 

 Var. 7. Niger, hemelytris latere albis. ((7. lateralis, Fab.) 

 Var. 8. Niger, hemelytris extus adlatera albido bimaculatis. (C.gihba, 



Fab.) 

 Var. 9. Niger, pallido maculatus ; hemelytris fuscis, puneto marginali 



albo. {C. higuttata, Fab.) 

 Var. 10. Nebulosus, vertice punctis 2, abdominisque basi, atris. (C. 



Populi, Lin., Fab.) 

 Var. 11. Cinereus, scutello basi atro ; hemelytris apice fuscis. {Issus 



prceustus, Fab.) 



This abundant and familiar insect has been noticed throughout the 

 whole of Europe, northern and central, and as far south as Malaga. I 

 have myself seen it at Cette and Marseille, and also in Corsica, where 

 it was very large. The imago is found from June till October, upon low 

 shrubs and herbage. The frothy excretion in which the larvae reside, 

 and which is common to this and the following genus, has been often 

 described. [See especially Grriffiths, Animal ELingdom (Cuvier), Sup- 

 plement on Somoptera.'] 



Gen. APHROPHOKA, Germ. 



The sheath of the rostrum in this genus is three-jointed, and ex- 

 tends to beyond the hind coxse. The vertex and frons have a distinct 

 medial carina, and the frons is also transversely furrowed. The ocelli 

 are closely approximated, and situated between the eyes. We have 

 apparently two species, of which one is rare. They are both much 

 larger than any Ptyelus, and are found upon alder and willow trees. 



* Hemelytra flavocinerea, maculis 2 albidis, 



fasciisque 2 transversis fuscis A. Alni, Lin. 



** Hemelytra flavocinerea, immaculata A. Salicis, Degeer. 



.1. — Aphrophora Alni, Lin. 

 Supra flavocinerea, subnitida, punctulata. Hemelytro ad costam, 



