1328 The Zoologist — August, 1868. 



truth should be known, and I am therefore well pleased to think that 

 the matter may be regarded as definitely settled. 



W. B. Tegetmeier. 



PS. — In order to render the distinctions between the British species 

 of Clupea more evident, I append a table of the differences, compiled 

 from Dr. Giinther's catalogue. 



Table of the Distinctions betiveen the British Species of Clupea. 



Herring [Whitebait). — Teeth on the vomer, or central line of upper 

 jaw. Scales along lateral line less than 50. Dorsal fin in 

 advance of ventral. Vertebrae 56. 



Sprat. — No teeth on the vomer. Scales less than 50. Dorsal and 

 ventral fins even. Vertebra? 47. 



Allice Shad.— No teeth at all. Scales more than 50. 70 to 80 

 gillrakers on great branchial arch. 



Twaite Shad. — No teeth at all. Scales more than 50. 30 to 40 

 gillrakers. 



Pilchard [Sardine). — No teeth at all. Scales less than 50. Gill- 

 cover deeply furrowed. — From the ' Field'' of June 20. 



Notes on Aphides. By Francis Walker, Esq., F.L.S. 

 (Continued from S. S. 1301.) 



Tribe 2. Lachnin.e, Passerini. 

 A. Sixth joint of the antennae setaceous. . . • 1. Sipha. 



AA. Sixth joint of the antennae filiform or clavate, often ter- 

 minating in a spur like a rudimentary joint. 

 A. Fourth vein of the fore wings nearly straight; stigma linear. 2. Lachnus. 



A A. Fourth vein of the fore wings curved ; stigma trapezoidal. 

 a. Abdomen hare. 



a. Rostrum short, not extending to the middle legs. 3. Callifterus. 



aa. Rostrum more or less long, extending at least to the 



hind legs. ..... 4. Pteiiochloeus. 



aa. Abdomen woolly. ..... 



Genus 1. Sipha, Passerini. 

 Antenna? short, six-jointed, slightly pilose-setose ; third and seta- 

 ceous sixth joint longer than the others. Nectaries tubercle-shaped. 

 Typical species, Aphis Glycerue, Kallenbach. 



A. Abdomen green, with a paler dorsal longitudinal line. . 1. Glycerin. 



\ A. Abdomen brown and shining above, rusty brown beneath. . 2. Maydis. 



