LIST OF HOMOPTEROUS INSECTS. 723 



41. Ptvelus EXCLAMATIONIS. 



Cicada exclainationis, Thunh. Act. Ups. iv, 24, 40. Gmel. Ed. 



Syst. Nat. i. 4, 2108, 143. 

 Cercopis exclamatiouis, Fall. Act. Holm. 1805, 253, 7. Cic. 21, 8. 



Zett. Ins. Lapp. 517, 4. 



Fuscus, depressus, subtus fulvus ; pectoris discus niger ; abdomen 

 supra nigrum ; pedes Jlavi ; alee anticce ad costam albo bi- 

 maculatce. 



Brown, covered with pale down : head and chest flat : head 

 slightly impressed on each side of the disk, concave along the hind 

 border, almost conical in front ; face tawny, shining, very convex, 

 having on each side about twelve oblique brown bands which are 

 very indistinct with the exception of five between the eyes : breast 

 tawny with a black disk : abdomen black above, tawny beneath : 

 legs yellow : fore-wings pale brown, darker along the hind border 

 near the tips, with two large, almost triangular white spots on the 

 fore border: hind-wings colourless; veins brown. Length of the 

 body If line; of the wings 3i lines. 



a. ? Presented by J. G. Children, Esq. 



42. Ptyelus? aucalis. 



Ptyelus apicalis, St. Farg. et Serv. Enc. Metk. x. 608. 

 Aphrophora apicalis, Germ. Mag. Ent. iv. 53, 7. 



Europe. 



43. Ptyelus albilatera. 



Aphrophora albilatera, Germar, MSS. 



Stramineus, depressus ; abdomen fulvum ; alee anticce ad costam 

 albidce. 



Straw colour, covered with pale down : head and chest flat 

 above: head concave behind, more convex in front; face shghtly 

 convex ; ridges on each side very indistinct : abdomen tawny : fore- 

 wings whitish along the fore border ; veins ferruginous : hind-wings 

 colourless ; veins pale straw colour. Length of the body 2 lines : 

 of the wings 4 lines. 



a. Cape. From M. Drege's collection. 



2s2 



