1805.] 275, 



17. — Dclpliax duvolor, Boli. ? 



I. —Forma hrachyptera,, ^ ? . Niger ; abdominis segmenta tes- 

 taceo mai'ginata, vel saltern angulis posticis testaceis. Pronotum et 

 scutellum fusco-testacea, — aliquando fere nigricautia. Froiis nigra, 

 carinis pallidis. Hemelytra abdomini dimidio longitudine jequalia, 

 hyalina; costa undique pallida. Pedes testaeei, femoribus tibiisque 

 fusco lineatis, tarsis 4 antieis, posticorum articulo ultimo, fuscis. 



II. — Forma macroptera, ? . Hemelytra abdomine longiora, liy- 

 alina, nervis pallide brunnein subtilissime puuctatis ; costa circa mem- 

 brauam nigricans. Caetera ut in prsecedente. Long. $ , 1\ lin. 



Boh., Handl., 1847, p. 61. Flor, R. L., 2, p. 63. Stal, Ofv., 

 1854, p. 195. 



A single $ , taken in Darenth Wood, appears to answer tbe 

 descriptions of authors. The pronotum and scutellum are nearly 

 black ; but to this character little importance can be attached. As 

 certainty is unattainable without more specimens, the name is left for 

 the present with a query. 



At this point I am forced, from scarcity of material, to leave the 

 genus Delphax. Two or three individuals of other species are in my 

 possession, which I have hitherto failed to identify. But, until an 

 exhaustive comparison of published descriptions shall have proved them 

 to be true, I am unwilling to risk any possible additions to the existing 



mass of synonyms. 



{To he continued.) "^ /. Jf 



EXTRACT FROM M. ALLARD'S PAPER ON SITONES, &c. 



BT E. C. RYE. 



{Concluded from page 232.) 



S. REGENSTElNENSis, Schou. This insect, found commonly on 



broom and furze, is exceedingly variable in size, some specimens being 



quite twice as large as others ; the smallest are often apterous, with 



rounded shoulders, and more pointed apex to the elytra. It varies also 



somewhat in colour, its rather sparse clothing of scales being either 



brownish or greenish-grey ; nevertheless, its almost globular thorax, 



convex elytra, delicate (but very distinct) hairs, and " straggling " legs 



will serve to distinguish it readily from all other British species. 



S. CAMBRicus, Stephens. The robust build, prominent eyes, 

 strongly dilated and rounded sides of the thorax, coarse punctuation, 

 and scanty scales of this insect separate it at once from its congeners. 

 Like the other Sitones, it varies somewhat in size, the largest specimens 

 being as bulky as fuU-sizcd pmicticollis ; and, owing perhaps to its 



