May t^oo,] 



PSYCHE. 



55 



ON SOME AMERICAN SPECIES OF MACROPSIS (JASSIDAE). 



BY C. F. BAKER, ST. LOUIS, MO. 



In America, JMacropsis is distinctly 

 soutiiern in ilistribiition. In Van 

 Duzee's List of Jassina four species 

 arc credited to North America, two 

 to Mexico, and two to Colorado and 

 the southwest. Three have been de- 

 scribed from South America by Stiil 

 and one by Lethierry. In this paper 

 three are added to the South American 

 list and six to the United States. As 

 at present known, one species occurs 

 throughout the southern United States, 

 one in Alabama, one in the Argus Mts., 

 Cal., one in the Magdalena Mts., N. 

 M., two in southern California, two in 

 Colorado, two in Mexico and four in 

 South America, Undoubtedly a num- 

 ber more will be found in Central and 

 South America. 



Pachyopsis Uhl., is strictly synony- 

 mous with Macropsis Le\vis. 



Macyopais itUoccroides n. sp. . — Male. 

 Length 5.5 mm. Strongly resembling an 

 Idiocerus in form. Head very little if any 

 narrower than pronotum, verte.v .scarcely 

 longer at middle than at eyes. Front very 

 minutely rugose below. Ledges over an- 

 tennal cavities sliort. Clypeus strongly- 

 convex, very broad at base, suddenly stronglv 

 narrowed beyond the middle to the rounded 

 apex. On a space along the anterior margin 

 of pronotuiTi, the usual aciculation gives 

 place to a fine shagreening. Lateral prono- 

 tal carinae not reaching eyes but curved far 

 down on to the pleurae. Punctures on cla- 

 vus fairly numerous and setigerous; punc- 

 tures on corium obsoletely if at all setiger- 



ous, sparse, antl arrangeLJ in longitudinal 

 rows. 



Color pale olivaceous, head and below 

 yellowish, the legs greenish. Eyes dull 

 carmine. Elytra transparent. 



Valve transverse, longer than preceding 

 segment, hind margin straight. Plates 

 strongly convex, twice longer than width of 

 both, bulging laterally below, then narrowed 

 to an acute point. 



Described from one example col- 

 lected in the Magdalena Mts., N. M., 

 in August (Snow). This is one of the 

 most interesting Bythoscopids occurring 

 in North America. Though so closely 

 resembling an Idiocerus, it yet presents 

 all the characters of Macropsis. The 

 width of head, form of clypeus, and the 

 position of the lateral pronotal carinae, 

 separate it widely from all other species 

 of the genus. 



Macropsis lacfiis(Y\\\\.) — I have col- 

 lected this species at Fort Collins, Colo., 

 in September. It somewhat resembles 

 theEuropean/r(75/w?/.sin coloration and 

 size, but is nearer la?iio in structme. 

 The head is broader than in pras/itus, 

 and the elytra possess supcrnimierary 

 veins at apex. It ditlers from /aiu'o in 

 various structural characters, and more 

 conspicuously, in lacking the fuscous 

 irrorations on head and pronotum. 

 Laetiis is the only American repre- 

 sentative of the group including frasi- 

 mis and lanio., and in which the elytra 

 are elongate and the punctures not 



