298 PROCEEDINGS OF THE ACADEMY OF [PaRT II 



abdomen cinnamon-buff, deepening to warm sepia distad, the supra- 

 anal plate of this color, the cerci snuff brown. Limbs and ventral 

 surface clay color, deepening to prouts brown distad on abdomen . 

 In some of the paratypes before us the limbs and ventral surface are 

 snuff brown, the latter becoming blackish toward the margins. 



Measurements (in millimeters). 



Length of Length of Width of Length of Width of 

 cf body pronotum pronotum tegmen tegmen 

 Icaiio, Argentina, paraiype 6.3 1.8 2.4 6.4 2.4 

 Icano, Argentina, paratype 6.8 1.95 2.5 6.7 2.6 

 La Palisa del Bracho, Argen- 

 tina, para«?/pe 6.8 1.95 2.6 6.4 2.4 

 Cordoba, Argentina, <?/pe 6.3 1.8 2.3 5.9 2.1 



In addition to the type, three paratypic males from Icano, 

 Santiago del Estero, Argentina, and one paratypic male from La 

 Palisa del Bracho, Santiago del Estero, Argentina, taken in De- 

 cember, have been examined. 



Lajita peniculiger'-^ new species. Plate XIII, figures 9 and 10. 



The species is related toL. scotia, under which species a compari- 

 son is made on page 297. 



Type: cf ; Las Garzas, Rio Las Garzas, Santa Fe, Argentina. 

 [Paris Museum.] 



We give the following characters, supplementing those described 

 in the generic treatment. Size smaller, structure more delicate 

 than in scotia. Space between antennal sockets three-quarters as 

 wide as interocular space, the latter wider than the occipital depth 

 of the large eyes by slightly over one-fourth. Maxillary palpi as 

 described for scotia. Tegmina with numerous (15 and 16) costal 

 veins, discoidal sectors (4 and 5) longitudinal. Dorsal surface of 

 abdomen unspecialized, but with median segment supplied with a 

 number of very fine microscopic hairs in median portion, succeeding 

 tergites with fewer similar hairs mesad. Supra-anal plate trans- 

 verse, free margin laterad straight, oblique, mesad straight, trans- 

 verse in broad section, the angles thus formed rounded. Paired 

 plate beneath supra-anal plate with dextral portion developed into 

 a large plate extending to median line, subchitinous mesad, with a 

 minute projection mesad on its ventral margin; sinistral portion 

 as in scotia, developed into a smaller though large chitinous lobe, 

 which tapers and curves dorsad to its acute apex. Subgenital plate 

 asymmetrical, sinistral margin weakly convex and weakly oblique 

 to median point, with sinistral style just before that point; dextral 

 margin more strongly convex and oblique to median point, where 

 by a sudden small offset the juncture of these margins is formed, 

 the specialized dextral style projecting from this angulation, the 



^28 The brush carrier, in alhision to the brush- hke dextral style. 



