74 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



NEW SPECIES, DIMORPHIC FORMS AND EARLY STAGES 



OF JASSID.^i. 



DoRYCEPHALUs Vanduzei n. sp. (Plate VI., Fig. 2.) 



Remarkably long and slender, ten times longer than wide, pale yel- 

 low with a greenish reflection. Form nearly of D. baeri but much 

 longer, as long as D. platyrhynchushui much narrower, elytra much 

 shorter than in either species. Length, 13-14 mm.; width, 1.25 mm. 



Brachypterous form ; Female, head long, foliaceous, three and one-half 

 times the length of pronotura, nearly as wide as across eyes, very 

 slightly narrowing before the obtusely rounding apex, apex very 

 slightly elevated, a distinct median carina and a lesser one slightly 

 nearer this than the eye on either side, the latter fading out anteriorly, 

 ocelli on the margin before the eye. Front very broad and inflated 

 on the clypeus, broadening to a point before the eyes, then narrowing 

 slowly to near the apex of head, convexly inflated, obliquely ribbed, 

 and thickly beset with coarse hairs on the sides ; broadly, concavely, 

 longitudinally depressed in the middle as in baeri. Clypeus broad, 

 hairy, slightly longer than wide; genae, broad at base below eye, then 

 excavated to the lateral angles, which are almost rectangular. Prono- 

 notum one-half wider than long, two parallel longitudinal depressions 

 near the middle, lateral margin parallel, carinated, anterior margin 

 broadly shallowly emarginate, the lateral angles obliquely cut off" against 

 eye, posterior margin rather deeply angularly emarginate. Elytra 

 short, reaching only to the base of the third abdominal segment, 

 broad at the base, rapidly narrowing to the roundingly divergent 

 apices, venation simple, claval veins united posteriorly, second sector 

 forked near base, first sector forked near apex, apical cells small, ir- 

 regular; abdomen long, broader than pronotum near base, tapering to 

 the long attenuate pygofers ; legs small, inconspicuous, fore and middle 

 femora much dilated near base, their width equalling more than half 

 their length. 



Color: Pale straw-yellow with an iridescent greenish tinge espe- 

 cially noticeable on the vertex, a small black spot on the vertex ju-t 

 inside the reddish eye on either side, another on the middle of the 

 posterior margin and a fourth on the median carina a little over one- 

 third the distance to the apex, a small spot near apex of scutellum, 

 four black spots on each abdominal segment arranged in two dorsal 



