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A NEW APHID GENUS AND SPECIES FOUND IN ENGLAND. 

 By Fred. V. Theobald. 



Genus Laingia, nov. 



This marked genus appears to be intermediate between Athcroidcs, Haliday, 

 and Sipha, Passerini. 



The characters are as foUows : Body elongate in the apterous female. Head 

 somewhat rounded in front to almost flat, moderately large ; no frontal or antennal 

 tubercles. Eyes large; ocular process prominent (fig. 1, E, oc./).) and truncate. 

 Proboscis (C) rather short and thick ; last two segments of about equal length. 

 Antennae (A) rather short, of five segments, reaching to or just past the pronotum (B). 

 Thoracic segments large and distinct. Legs rather short and thick, the prothoracic 



Fig. 1. Laii'.gia psa)un!ae,sp. n. : A, antenna of apterous viviparous ^ ; B, head 

 and prothorax ; C, proboscis ; D, anal plate (a.^.), cauda (c), apical segment (b) ; 

 E, eye, ocular process {oc.p.); F, cornicle. 



pair far from the mesothoracic. Cornicles (F) round, very slightly raised. 

 Cauda (D, c) rather small, broad, parallel-sided and slightly convex apically. Anal 

 plate (D, a.p.) somewhat rounded apically, broader than cauda, sides straight but 

 divergent ; both anal plate and cauda hidden by the prominent semicircular apical 

 segment of the body (D, b). Integument finely spinulose. A few short hairs on 

 the body ; long, thicker ones on head and apex. 



This genus differs from Sipha in the non-knobbed cauda and from AtJicroides in 

 the non-rounded cauda. Superficially it bears some resemblance to Thripsaphis, 

 but the ocular processes at once separate it from that genus. 



I have named it after Mr. F. Laing, of the British Museum, who pointed out to 

 me that it appeared to be intermediate between Atheroides and Sipha. 



Laingia psammae, sp. nov. 



Apterous viviparous female. — Elongate, rather narrow. Colour varj'ing from dull 



straw to dingy brownish-green. Eyes dark. Legs short, rather thick, darker than 



body. Abdomen with dusky lateral patches and small dusky spots ; apical segment 



dusicy, also apex of cauda ; a dusky area around base of cornicles ; anal plate dusky. 



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