The Zoologist— July, 1868. 1299 



aa. Body bright green, or luteous-green. 



* Body white-powdered. 



t Antennae as long as half the length of the body. Nectaries and 



tail brown ; coxae black. .... 45. Cucubali. 



ff Antennae as long as one-third of the body. Nectaries and tail 



pale green. Coxae whitish or hardly brownish. . 46. Atriplicis. 

 ** Body not white-powdered. 



f Dorsum of one colour, or with deeper. Nectaries and tail pale, 



the former sometimes with brown tips. . . 47. Origani. 



ft Dorsum with deeper longitudinal striae. Nectaries and tail black. 



48. Beccabungce. 

 aa. Nectaries and tail very short, about as long as broad. 



a. Body pale green. ..... 49. Caretcs. 



aa. Body brown. 



* Rostrum reaching or extending beyond the hind legs. Dorsum 



wholly powdered. ..... 50. terricola. 



** Rostrum not extending beyond the hind legs. Dorsum powdered 

 excepting two spaces and a transverse line, rarely quite bare. 



51. Donacis. 

 AA. Tail none or not visible. 



A. Nectaries more or less long. 

 a. Body shining. 

 a. Dorsum green, with black shining and sometimes confluent black bands. 



52. Persica. 

 aa. Dorsum of one colour. 



* Colour bright green. .... 53. Myosotidis. 



** Colour black or brown. 



f Nectaries slender, longer than the fore femora. . 54. Cenlaurece. 



ff Nectaries rather thick, much shorter than the fore femora. 



% Abdomen of the viviparous winged female deep black and shining 

 beneath. ..... 55. Prunicola. 



XX Abdomen of the viviparous winged female brownish black and dull 

 beneath, only the anal folds shining. . 56. Tragopogonis. 



aa. Body powdered. 



a. Viviparous winged female with a black dorsum. . 57. Ranunculi, 



aa. Viviparous winged female with an olive-green dorsum, with a black 



dorsal spot and with black marginal points. . . 58. Lappa. 



AA. Nectaries wholly wanting. ..... 59. G altar urn. 



Genus 8. Siphocoryne, Passerini. 



Nectaries clavate, more or less long. In other characters like 

 Aphis. 



Typical species, Aphis Xylostei, Schrank. 



A. An oblong little horn above the tail. . . . . 1. Capreat. 



A A. No horn. 



