150 COLOMBIAN DERMAPTERA AND ORTHOPTERA 



and bases of the til)iae black, all the femora and the median and caudal tibiae 

 each showing two wide, but very faint, bands of ochraceous-tawny. 



The antennal coloration and the unusual marking of the internal margin ol 

 the anterior field of the wings, and of the limbs, all are found in the otherwise 

 apparently widely separated Holca annulipes Redtenbacher. 



The type of this interesting species is unique, 

 Pseudophasma "' taeniatum new species (Plate XXI, fig. 5.) 



This insect agrees with P. rohustum, described in the present 

 paper, in the decidedly robust form and abbreviate wings. The 

 latter extend but slightly beyond the apices of the caudal femora 

 and are clearly useless for sustained flight, though they can 

 probably be employed as parachutes. Very decided difference 

 from rohustum is found in the nodulose occiput, differently 

 colored antennal joints much more strongly defined, exceptionally 

 short mesonotum, distinctive venation of tegmina, broad medio- 

 longitudinal pale band of the anterior field of the wings, uni- 

 colorous limbs and bluntly rounded apex of operculum. 



Type. — 9 ; San Antonio, Cauca, Colombia. Elevation, 6600 

 feet. November, 1908. [United States National Museum.] 



Size smaller than rohustum, form robust. Head very slightly longer than 

 wide; occiput with six irregular rows of widely spaced nodules. The three 

 ocelli minute, but not as much reduced as in rohustum, not closely crowded, 

 forming the apices of an equilateral triangle, the surface about each feebly 

 raised, the depression before the median ocellus decided. Antennae with 

 joints weakly but distinctly enlarged distad, excepting the elongate distal 

 joints, which are subdivided into short segments. Pronotum with surface 

 roughened and with a few weak nodules. Mesonotum extremely short, con- 

 siderably shorter than pronotum, with surface decidedly roughened, with three 

 decided and closely placed tubercles on each lateral margin and one decided 

 pair laterad on the dorsum, with a pair of nodes cephalad and caudad, in which 

 region the surface is generally nodulose. Tegmina of normal length for genus; 

 production decided at sutural angle; shoulders compressed with outline irregu- 

 larly convex, due to the varicose condition of the veins, which though promi- 

 nent in the dorsal field are decidedly more thickened and raised on the shoul- 

 ders; distal margin of dorsal field evenly and weakly convex to the rather broadly 

 rounded angle at the sutural margin, sutural margin very feebly convex. 

 Wings reduced, extending only very slightly beyond apices of caudal femora; 

 anterior field broad. Distal portion of al)domen appan^ntly as described for 

 rohustum (dorsal segments distorted), excei)t that the angle formed by the 

 apex of the operculum is only slightly less than a right angle and is bhmtly 

 rounfled. Cephalic femora with cephalic flexure moderate, slightly weaker 



^' The necessity of following Kirby in the use of this name for Phasma of 

 authors (not of Lichtenstein as restricted) is fully explained by Holui. I'roc. 

 Acad. Nat. Sci. Phila., 1904, p. 9.5, footnote 43, (1904). 



