52 [August, 



Anteniife with the first joint in the niickllc liirgcly red or pieeous, the last two 

 joints together as long as ( (J ) or scarcely longer than ($) the second joint. 

 Male and female with developed wings. 



7 (8). Antennae with the second joint onlj- at the apex fuscous ; the second joint as 



long as the scutellum, pronotum and head until the base of clypeus ((?),or 

 only as long as the scutellum and pronotum together (?). Pronotum at the 

 base largely and slightly sinuated, and scarcely twice as wide as at the apex, the 

 sides gradually diverging from the collar to tiie posterior angles, the pronotum 

 being much longer in proportion to its width tlian in the following species. 

 Cuneus at the apex narrowly dusky. Tibiee at the base concoloi'ous, the poste- 

 rior tibiae about 3f — 3j times as long as the width of the head (with the eyes). 

 The body more slender ; head almost plain, pale (= D.pallidus, D. & S., Saund.). 



3. D. EPiLOBii, n. sp. 



8 (7)- Antcnnse with the second joint, at least at the base and apex, jjiceous, or en- 



tirely piceons, or black, as long as the scutellum, pi'onotum and head as far as 

 the transverse impression of the vertex behind the eyes ( (?), or as long as the 

 scutellum and pronotum together ( ? ). Pronotum shorter in proportion to its 

 width than in the foregoing species, its base at least 2 — 2^ times as long as the 

 apex, raised, and at the margin more deeply sinuated, the sides diverging 

 rapidlj' from behind the central constriction. Tibire at the base narrowly fuscous 

 or pieeous, the posterior ones four or almost five times as long as the width of 

 the head (with the eyes). Cuneus at the apex largely and obliquely brown. 



4. D. ERllANS, WolfP.* 



9 (2). Antennaj not or very little longer than half the length of the body ; the fii'st 



joint always three-sevenths shorter than the head with the clypeus, or half as 

 long as the head, and at least one-fifth to one-fourth shoi-ter than the posterior 

 margin of the vertex ; the second joint towards the apex distinctly a little 

 incrassated (in the macropterous specimens), distinctly shorter than the scutellum 

 and pronotum together, mostly as long as the pronotum, the last two joints 

 together distinctly longer than the second. Head seen from above scarcely or 

 very slightly transverse. Legs rather long, the anterior eoxse scarcely reaching 

 behind the middle of mesostcrnum. Posterior tibite about three and a half 

 times as long as the width of the head (with the eyes). 



10 (11). Pronotum at the base almost more than twice (J ) or scarcely twice ( ? ) 



wider than at the apex, the sides sinuated, diverging rapidly from behind the 

 central constriction, the basal part above almost smooth, the basal margin rather 

 deeply sinuated. Antennae with the first joint one-fifth to one-fourth shorter 

 than the posterior margin of the vertex ; the third joint almost one-fourth 

 shorter than the second, and almost twice as long as the fourth. Hemiclytra 

 developed (S ?) 5. D. htaiinipennis, Klug. 



11 (10). Pronotum of the macropterous form at the base slightly sinuated, and not 



* Mr. Saunders has kindly comirmnicated me two specimens (<J 5) from the extreme S. W. 

 corner of England (" I'enzancc, by sweeping"), which differ fi-om erran.t only by the distinctly 

 longer antenna;. The second joint is as long a.s the scutellum, pronotum and half the head to- 

 gether, and the last joints together scarcely longer than the second [6 , or the last joints together 

 distinctly longer than the .second ( $ ). This form still remains to be .satisfactorily made out. I 

 have not seen it among the large number of specimens from the continent which I have ex- 

 amined. The food-plant is unknown. 



