74 NEW NORTH AMERICAN ACRIDID.E — BRUNER. 



smooth. Ocellus and lateral ocelli very round aud sinning, ferruginous. 

 Antennae a trifle longer than usual in the genus, somewhat flattened. 

 Pronotum deeper than usual, expauding slightly downward to the lower 

 edges anteriorly so as to make them nearly parallel; posterior lower an- 

 gles more acute than in any other species with which I am acquainted ; 

 dorsum with the median carina visible and nearly equal throughout, 

 twice notched; the middle lobe very short, expanding rapidly posteriorly, 

 lateral carina? visible as rounded shoulders on the posterior lobe; pos- 

 terior edge a little more than a right-angle. Tegmina and wings as in 

 T. vintulata. 



General color light cinereous, with a plumbeous tingeabout the head and 

 pronotum, mottled with dark brown. Head dirty bluish white, darkest- 

 above, the pits appearing as specksof dust; antennae dark ferruginous, 

 annulated with ochraceous, eyes ferruginous; pionotum cinereous with 

 a central quadrate whitish spot upon the lateral lobes, posterior margin 

 marked with a series of dark brown spots. Tegmina marked with dark 

 brown, much as in T. vinculata, save the middle band, which here only 

 reaches two-thirds across the wing, and if anything the apex is less 

 mottled than in that species; wings with the base very light yellow, 

 crossed by a rather narrow fuliginous band, which is divided into two 

 parts by the yellow humeral veins; humeral portion extending nearly to 

 the base of the wing, the portion beyond the dusky band hyaline with 

 the nerves whitish except at the extreme tip, where they are fuliginous. 

 Posterior femora as in T. vinculata, posterior tibiae yellowish with black- 

 tipped spines. 



Length of body, 23 mn ' ; of antennae, 14 mm ; of pronotum, G""" ; of teg- 

 mina, 25 mm ; of posterior femora, 9""" ; of posterior tibiae, 8""". 



Described from a single male. 



Hab. — Los Angeles, Cal. (D. W. Coquillett). 



Trimerotropis perplexa sp. uov. 



A peculiarly perplexing form belonging to the group of non-banded 

 winged species aud resembling to a certain extent the Tr. azurcscens 

 of the extreme west and northwest, but from which it is to be distin- 

 guished by its more robust form, shorter and broader tegmina and 

 wings, and in the much heavier posterior femora. 



Vertex between the large moderately prominent eyes, broad, smooth 

 and quite deeply sulcate, with well defined lateral and longitudinal 

 median carinas, the latter branching at the apex of the fastigial de- 

 pression and uniting with the lateral in front and continuing poste- 

 riorly upon the occiput almost to the front edge of the pronotum; frontal 

 costa moderately broad, with well defined edges, quite deeply ( $ ) or 

 more shallowly ( 9 ) sulcate, not continuous with the sulcus of vertex. 

 Pronotum nearly as broad as long, the surface finely rugose, the disk 

 nearly flat, the anterior lobes quite smooth and but gently raised 

 above; the median carina nearly equal and quite plain throughout; 



