Logotype of the genus: Dictyophora europaea Linn. 

 The following key is adapted from publications of Gib- 

 son and Metcalf. 



Key to North American species of Dictyophora 



1. Transverse veinlets of the elytra forming three nearly regular 

 bands, dioxys Walk. 



... Transverse veinlets of elytra in no regular pattern, .2. 



2. Length of vertex slightly longer than its basal width, 4. 



3. Length of vertex twice or more its basal width, 



Head process slender, intermediate carinae of f rons nearly parallel, 

 plates longer than the ovipositor, : microrhina Walk. 



... Head process stout, nearly parallel sided, intermediate carinae of 



frons not parallel, ovipositor slightly longer than plates 



recurva Metcalf. 



4. Frontal carinae meeting in an obtuse angle and tinged with black; 

 female plates short, extremely broad and rounding,.. ..florens Stal 



... Frontal carinae meeting in an acute angle and not tinged with 

 black; female plates long and narrow, lingula Van D. 



Dictyophora microrhina WALKER 

 (1851 List Homop. in the British Museum, i, p. 315). 



This is our most common and widely distributed species 

 and is distinguished at once by its very long head. 



Recorded from N. Y., N. J., N. C., Fla., La. and Kans. 



Body a bright grass-green. Head narrower than the pronotum. 

 Vertex very long, more than twice as long as its basal width, slightly 

 turned upwards, the elevation varying considerably within the species, 

 a slight indication of a median carina at the base. Frons elongate 

 and narrow, a median and two lateral carinae, all straight and 

 parallel throughout their length and converging to a point on the suba- 

 cute base. Elytra long and narrow, pale greenish hyaline with the 

 nervures green; the apical half very finely reticulated. Tibiae rufous 

 testaceous. 



Male pygofer with ventral margin very deeply and obtusely emargi- 

 nate; the genital styles or plates long, rather straight, the surface 

 somewhat arched, the tips rounded outward. The plates of the female 

 are ferrugineous, ligulate, and scarcely attaining the ends of the 

 green anal tube. 



Length of body 8.5-11 mm.; length to tip of elytra 11-15 mm. 



Redescribed from a series of adults and nymphs taken 

 by the writer by sweeping coarse grasses in pine lands 

 during 1921 at the following localities in Mississippi: 

 Pascagoula, July 5, 1920 ; Port Gibson, July 22 ; Woodville, 

 July 26; and Laurel, August 12. He has also taken this 



31 



