ASPIDIOTUS CAMELLIA. 93 



to seven ; they are connected with a corresponding 

 number of dorsal pores, which are circular and unusu- 

 ally small. There are usually four dermal scars, but 

 the central pairs are sometimes united. Anal opening 

 very large and near the margin. Vaginal opening at 

 the commencement of the second-third of the space 

 from the base. Margin (PL XI, fig. 3) with the median 

 lobes well developed and unusually large ; their lateral 

 margins are either straight or slightly curved ; and 

 the hind margin is usually notched at the angles, but 

 sometimes has a wavy outline; the second and third 

 pairs of lobes are very minute, and pointed. The two 

 plates between the median lobes are long and slender, 

 and have two or three points ; the next five are irre- 

 gularly furcate or branched, and very long; there are 

 usually two simple plates beyond the third lobe, the 

 farthest being much the shortest. There is a long 

 spine at the base of each lobe at the anterior margin ; 

 and an isolated pair considerably beyond the last plate, 

 which are somewhat longer. 



There are two deep incisions in the body-wall, one 

 between the median and second lobe, and the other 

 between the second and third lobe ; the margins of the 

 incisions are strongly chitinised and thickened. 



Habitat. Under glass, on Myrtle, Camellia, Euony- 

 mus, Euphorbia, Asparagus pluwosus, .Begonia, culti- 

 vated fig, etc. In Cheshire and Lancashire it is 

 apparently common, and very generally distributed. 

 Mr. Douglas was the first to record the species from 

 Exeter. I am not aware of its occurrence elsewhere, 

 but from experience I should imagine it will occur in 

 almost every neglected greenhouse and conservatory in 

 Great Britain. 



Distribution,. It occurs in the open air in the south 

 of Europe, and has been taken in Algeria by the Rev. 

 Eaton. But I have not heard of its occurrence in 

 other parts of Africa. Elsewhere it is a common pest, 

 and very generally distributed. 



Habits. The females are universally parthenoge- 



