114 BEITTSH APHIDES. 



Pale green. Head, thoracic lobes, and scutellum 

 dark brown or black. Antennae rather long, and 

 partly tuberculate. Abdomen fusiform, shining, with 

 obscure greenish fascia. Nectaries small, rather 

 thicker at their bases. Cauda rather long, acuminate. 

 Legs as in apterous forms. Stemmata distinct. Wings 

 ample, membrane delicate and iridescent ; insertions 

 yellowish ; veins dark ; stigma grey. 



Bred from the pupge at the end of May. 



0, 

 Apterous Oviparous female. 



Small, broad oval, colour ochreous-brown, carina 

 paler. Vertex very prominent. Head broad. Eyes 

 red. Cornicles and legs darker brown. 



Taken on a dry rose leaf December 8th. On the 

 previous night the thermometer marked 23° Fahr. 



Whilst under the microscope this insect commenced 

 to lay her eggs, two in number, of a yellow colour, 

 which speedily darkened to a shining black. 



They measured 0-020 inch in their long diameters, 

 that is, nearly half the length of the parent Aphis. 



Hyalopteeus teiehoda, Walk. Plate LXXYII, 

 figs. 1 — 4. 



Aphis trirhoda. Walker. 

 Hyalopterus aquilegice, Koch. 

 — trirhoda, Pass. 



Apterous viviparous female. 



