396 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxv. 



two-thirds the length of the prozona; lateral lobes distinctly longer 

 than deep, cephalic margin oblique, ventral margin arcuate caudad, 

 obliquely emarginate cephalad. caudal margin arcuate emarginate. 

 Tegmina surpassing the tips of the caudal femora by about the length 

 of the pronotum, very narrow, subequal, apex subacute, intercalary 

 area rilled with an irregular network of cells, a false intercalary vein 

 being present distad where the cells are chiefly rectangular in shape. 

 Wings lono; and narrow, the greatest width contained 



. „ to ^ 3 & 



^\ // about two and three-quarter times in the length. 

 \\ // Prosternal spine slender, somewhat compressed. Inter- 

 space between the mesosternal lobes about twice as long 

 as broad, widened cephalad and caudad; metasternal 

 lobes contiguous caudad. Caudal femora as long as the 

 pronotum and twice the length of the head, slerfder, the 

 greatest width contained about four and a half times in 

 the length, pattern of the pagina distinct but not deeply 

 impressed; caudal tibia' armed on the external margins 

 with seven spines, the margins with distinct lamellate 

 inds?a ^ ridges distad. 



till arum. General color raw umber dorsad, pale ochre yellow 

 ofheadInd ventrad, a dividing line of white extending from the 

 pronotum. caudal margin of the eye to immediately dorsad of the 

 articulation of the caudal limbs. Face clouded with 

 red brown; eyes tawny olive; genicular lobes with a spot of black; 

 tibial spines and spurs tipped with black. 



Measurements. Mm. 



Length of body 22.8 



Length of pronotum 4.2 



Length of tegmen 20. S 



Length of caudal femur 12.0 



The type alone has been examined. 



Genus PROCTOLABUS Saussure. 



PROCTOLABUS BULLATUS, new species. 



Type.— Cat. No. 11962, U.S.N.M. Male; collected in the Tidies 

 and Perene valleys. 2,000 to 3,000 feet, Peru. (Soc. Geog. de Lima.) 



This species is quite distinct from the previously known forms, the 

 small size and peculiar yellow and bluish coloration being quite dis- 

 tinctive. In the general form of the fastigium it agrees with the 

 Costa IJican /'. pulchripennis, but the form of the genitalia is quite 

 different. 



