IOWA ACADEMY OF SCIENCES. 53 



areas between the ocelli and the eyes are ligh% often partly enclosed 

 by a black circular line and with a heavy black spot in the middle. 

 The reflexed portions of the front striated with dark. Pronotum, 

 as in other forms, the markings smaller and more numerous. 

 Elytra mottled with blue-green, the nervures somewhat fuscous, 

 claval sutures often broadly light. 



Reddish form — Reddish, pronotum and elytra mottled with 

 creamy, anterior margin of pronotum and scutellum distinctly red- 

 dish, dark markings often obscure or wanting, the outer pair of 

 lines on vertex often enlarged, somewhat lobed. 



^ Var. confluens Uhl. , Plate III, Fig. 4. 

 (^ Proconia oonjluens, Uhler. Proc. Acad. Nat. Sc, Phila., p. 285, 1861. 



Stouter than even the preceding varieties, elytra usually long 

 nearly parallel margined. Dark testaceous, shading to fuscous, 

 elytra slightly and obscurely mottled. Vertex and scutellum fus- 

 cous, a few of the light markings of tchleri persisting, as follows; 

 a dash back of the apex of vertex, three lines on the disc, a trans- 

 verse spot at base and a margin next the eyes. Often light mark- 

 ings on pronotum, the lateral ones arranged in rows, apex of scu- 

 tellum light. The face is usually light, with dark mottlings. Ely- 

 tra often with the mottlings arranged in light stripes, especially 

 along costa and claval suture. 



This species, as a whole, is very variable in size and color, 

 and recalls 0. iimJafa a,ndP lateral is in their red, green and 

 black forms. The varieties readily fall into two series on 

 strnctural characters. The first hasV^ ierof/lyph ica, and dolo- 

 hrafa as the extreme in darkening np. These forms are the 

 only ones found in the Mississippi valley and as far west as 

 central Kansas; they ocp^r also in Texas, Arizona and Mexico. 

 The second series has uJtleri as the common form, and con- 

 fluens as the dark extreme. The iihleri is the common 

 form in Wyoming, Colorado, Arizona and New Mexico, and 

 extends westward to the coast. The specimens from the 

 western coast, including Idalngr, are much larger, and have 

 longer elytra, and are mostly con/iuens. 



Specimens of this species are at hand from Illinois, 

 Iowa, Missouri, Nebraska, Kansas, Ark^^nsas, Texas, Wyo- 

 ming, Colorado, Utah, New. Mexico, Arizona, Idaho, Wash- 

 ington, Vancouvers Island Oregon, California and Mexico. 

 All specimens received d.^hieroghjp]iica from points east of 

 Illinois belonged to the following species: 



<^ Tettigonia gothica Sign., Plate IV, Fig. 1. 



Tettigonia gothica S\gn. An. Soc. Ent. Fr.. ]>. 345, 1854. 



