48 OETHOPTEEA. 



Hah. Noeth America 1_6 , eastern slopes of the Rocky Mountains from Northern 

 Texas to Southern Wyoming. 



Found in all the American collections, but not in the ' Biologia ' material, which 

 would indicate that the species does not extend far into Mexico. All the records 

 of specimens taken beyond these limits refer without doubt to either A. variegatus or 

 A. uniformis. 



2. Acrolophitus variegatus, sp. n. (Tab. I. fig. 3, s .) 



General colour dark apple-green, greatly streaked and mottled with pinkish-testaceous or dull salmon-colour. 

 The crest on the hind lobe of the pronotum very high and evenly rounded, forming almost one-half of a 

 circle. Head pyramidal, the vertex greatly ascending, acuminate ; occiput short, narrow ; frontal costa 

 prominent, its sides nearly parallel below the antennae, rather deeply sulcate throughout. Antennae long 

 and slender, the joints scarcely depressed. Pronotum strongly contracted in front and widened behind, 

 the posterior margin of the disc acute-angled in both sexes ; the median carina wanting on the anterior 

 lobe, but present and modified into an exceedingly high and evenly rounded crest on the posterior lobe, 

 occupying about four-fifths of the length of the pronotum. Tegmina and wings ample, extending 

 considerably beyond the tip of the abdomen in both sexes. Hind femora also long and slender, nearly 

 attaining the apex of the closed wings. 



General colour above of various shades of apple-green, below testaceous and dirty white with a faint tinge of 

 green. Face dirty greenish- yellow ; cheeks and occiput dark green, with two oblique dull salmon- 

 coloured streaks on each side, which are continued on to the sides of the pronotum ; the latter with a 

 similarly-coloured band on each side of the disc above running from near the front edge of the crest to 

 the hind edge just below the shoulders. Anterior and middle legs testaceous, with obscure bands of 

 brown and dirty green ; hind femora green, with their lower edge and the base, also two oblique bands 

 and one preapical band, of a pale salmon-colour. Tegmina dark green, varied with irregular light- 

 coloured maculations in the discal field ; on the basal half the light and dark spots are much smaller and 

 occupy about an equal amount of space, beyond this the dark colour predominates and occupies nearly 

 the entire width of the wing as unequal transverse blotches. Antennae dark ferruginous or reddish- 

 brown. 



Length of body, c? 34, $ 44; of pronotum, tf 8, $ 10 ; of tegmina, 3 31-5, $ 36 ; of hind femora, <3 23, 

 2 26 ; of antennas, <5 19, $ 20 miUim. 



Hab. North Ameeica, Carrizo Springs, Dimmit County, Texas, and about 20 miles 

 from the Mexican border {A. Wadgymar, in coll. Bruner). 



Specimens of both sexes were collected in the month of June.] 



ACROCARA, Scudder. 

 Acrocara, Scudder, Psyche, v. pp. 436, 437 (1890). 



The representatives of this genus are widely distributed over the arid regions of 

 the Rocky Mountains. Two species are now known ; and in both cases but few 

 individuals have thus far been reported. One of these, A. maculipennis, Scudd., is 

 confined to Mexico ; the other, A. pulchella, Bruner, comes from Idaho among the 

 lava-beds. 



