150 



Pronotuiii tUstinctly carinate throughout ; tlie transverse impressions distinct. 

 Elytra abl^reviated, a little broader than long, rotundate, densely reticulate, 

 contiguous at tlie liasc. Vertex of the head sub-convex,»sub-impressed, antl 

 slightly produced in front of the eyes; face somewhat oblique, punctate; 

 frontal costa broad, obtuse ; lateral carinas very obtuse, or obsolete, sub- 

 evanescent near the apex, divergent. Antennae not reaching the tip of the 

 pronotum, filiform, pale. Pronotum narrowed in front; anterior border sub- 

 truncate ; hind border obtusely rounded, sub-angulate ; the disk slightly con- 

 vex ; before the third transverse sulcus spai-sely punctate, behind it densely 

 punctate ; median carina distinct throughout, behind the middle acute. 

 Elytra abbreviated, contiguous at the base, rounded at the apex, somewhat 

 broader than long, scarcely longer than half the pronotum, densely and retic- 

 ulately veined. Prosternal spine obtuse, conical. Pectus on each side above 

 the posterior coxae fusco-olivaceous, with a pale-yellow oblique stripe. Pos- 

 terior femora testaceous-yellow above, rufous beneath; one of the dark spots 

 at the base, the other interior in front of the middle, and the dorsal carina 

 behind the middle fuscous ; spines of tibiee pale at base, apex fuscous. 



Dimensions. — 9 Length, 0.95 inch ; width, 0.28 inch. 



San Francisco California (Stal). 



P. ziiniiieriiianiii, Sauss., Rev. et Mag. de Zool., 2d sen, XIII (1861), 159. 



Female. — Face broad, vertical, quadricarinate; carinas distinct; front 

 above somewhat prominent. Vertex not inflated ; foveola in front deflexed 

 and sliglitly emarginate; eyes globose, distant. Pronotum compressed, 

 broad, carinate, gibbous in front of the middle ; posterior lobe flat ; lateral 

 carinas acute, densely punctate; anterior margin arcuate, produced npon the 

 occiput; posterior margin truncate, sub-arcuate; posterior transverse impres- 

 sion situated behind the middle as in P. alpina. Prosternal spine pyramidal, 

 acute. Elytra rudimentary. Legs very slender. 



Dimensions. — Length, 1 inch. 



Carolina (Saussure). 



P. longicorni<^, Sauss., Rev. et Mag. de Zool, 2(1 ser., XIII (1861), 159. 



Male. — Size small. Antennas very long, the length of the posterior 

 femora. Vertex not prominent, carinate ; foveola narrow, elongate ; eyes 

 large, inflated, approximate at the vertex. Pronotum compressed, disk flat, 



