MORGAN HEBARD 151 



than in rnbastuin. All femora and tibiae with four carinae conspicuous. 

 Tarsi heavily supplied with hairs on ventral surfaces, the small distal pul villi 

 almost concealed. Moderate arolia present. 



Length of body, 50; dorsal surface of head, 4; pronotum, 5; mesonotuni, 

 3.7; tegmen, 7.2; wing, 27.2; cephalic femur, 12.7; median femur, 11.8; caudal 

 femur, 16.7 mm. Width of head, 4.2; pronotum, caudad, 3.9; mesonotum, 4.7; 

 dorsal field of tegmen, 3.3; wing, 19 mm. 



General coloration black. Head black with a suffused postocular band on 

 each side of sayal brown, mouthparts buffy. Antennae with two proximal 

 joints blackish, other joints sayal brown, their apices suffused with blackish, 

 this suffusion extending on the dorsal surface of each of the proximal joints to 

 near its base. Pronotum black, the lateral margins narrowly sayal brown 

 cephalad. Other portions of body and limbs solidly black, the thick hairs of 

 the ventral surfaces of the tarsi sayal brown. Tegmina velvety black, the 

 enlarged and raised veins cinnamon-buff, except toward the sutural margin 

 where they shade to cinnamon ; in consequence of the very unusual enlargement 

 of the veins on the shoulders, these portions are almost entirely cinnamon-buff. 

 Wings with lateral portion of anterior field blackish, dorsal portion divided 

 into three broad longitudinal bands, the external Imnd blackish (concolorous 

 with the adjacent lateral portion), the median band striking sayal brown, the 

 internal (sutural) band velvety black; posterior field immaculate, avellaneous. 



The type is unique. 

 Pseudophasma robustum now species (Plate XXI, Fig. 6.) 



This robust species is particularly distinctive in the abbrevia- 

 tion of its wings, these extending but slightly beyond the apices 

 of the caudal femora. The distinctively annulate antennae, dark 

 tegmina with velvety black area obsolete, immaculate posterior 

 field of the wings and limbs reddish brown in proximal half, black- 

 ish brown in distal half, are other features of decided diagnostic 

 importance. Under P. taeniatum, here described, these two 

 species are fully compared. 



From the brief description of P. unicolor (Gray), nearest rela- 

 tionship of that insect would appear to exist with robustum; in 

 that species the size is smaller, the antennae differently annulate, 

 the wings longer and the posterior field of the wings differently 

 colored. 



Type. — 9 ; Cincinnati, Sierra Nevada de Santa Marta, Mag- 

 dalena, Colombia. Elevation, 4000 to 5000 feet. July, 1913. 

 (M. A. Carriker Jr.) [Hebard Collection, Type No. 454.] 



Size medium for the genus, form robust. Head simple, much as in P. phthisi- 

 cum (Linnaeus),'* with three, very feeble, longitudinal occipital sutures and the 



"* Of which species, the genotype, we have material from French Guiana, 

 determined by Chopard as the synonymous P. necydaloides (Johannson). 



TRANS. AM. ENT. SOC, XLV. 



