53 8 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Pilophorus Westwood. 



Key to Species. 



i. Scutellum strongly convex, almost conically produced 2 



Scutellum nearly flat or onry moderately convex 4 



2. Hemelytra cinnamon brown to fulvous, the polished apical area 



only, dark brown or piceous 3 t , 



Hemehrtra dark brownish black, apex of clavus as well as corium 

 polished behind posterior silvery line ; silvery bar on clavus nearly 

 or quite connecting with posterior silvery line of corium, directed 

 somewhat obliquely distad; length 4.1 mm (p. 539) furvus n. sp. 



3. Antennal segment ii in length equal to little more than width of 



vertex ; smaller, length 3 mm heidemarmi 



Antennal segment ii in length almost equal to width of head; 

 larger, length 3.5 mm (p. 539) depictus n. sp. 



4. Hemelytra polished over entire width behind posterior silvery line 5 

 Hemelytra polished behind posterior silvery line but exterior to 



radial vein only 1 1 



5. Hemelytra beset with erect, short black bristles ' 6 



Hemelytra clothed only with fine recumbent pubescence, some- 

 times black but not erect and bristle-like 7 



6. Antennal segment iii black, nearly as thick as segment i 



(p. 540) vanduzeei n. sp. 

 Antennal segment iii pale, the apical half only infuscated, slender, 

 scarcely thicker than segment iv (p. 541) uhleri n. sp. 



7. Hemefytra yellowish brown to dark brown except behind posterior 



silvery line 8 



Hemelytra bright cinnamon fulvous except behind posterior silvery 

 line 9 



8. Antennal segment iii pale, scarcely infuscated at apex ; hind tibiae 



strongly compressed, almost carinate (p. 542) crassipes 



Antennal segment iii reddish brown to piceous, slightly paler at 

 base; hind tibiae only very slightly compressed cinnamcpterus 



9. Small, length not exceeding 3.7 mm. ; posterior silvery line inter- 



rupted on corium but not dislocated at ciaval suture 10 



Larger, length 4.5 mm. ; posterior silvery line not interrupted on 

 corium but slightly dislocated at ciaval suture ; antennal segment 

 ii gradually thickened toward apex (p. 542) amoenus 



10. Antennal segment ii strongly clavate on apical one-third, in length 



exceeding distance between tip of tylus and hind margin of pro- 



notum (p. 543) laetus 



Antennal segment ii gradually thickened from middle toward apex, 

 in length not equal to distance between tip of tylus and base of 

 pronotum (p. 543) juniperi n. sp. 



11. (4) Transverse silvery line of clavus and corium dislocated at 



ciaval suture 12 



Transverse silvery line of clavus and corium forming nearly a 

 straight line, although that of the clavus bent slightly forward 

 but never disconnected (p. 544) perplexus 



12. Antennal segment ii, in length, equal at least to distance between 



tip of tylus and basal margin of pronotum 13 



Antennal segment ii, in length, not equal to distance between tip of 

 tylus and basal margin of pronotum; length 3.5 mm walshi 



13. Antennal segment ii, in length, equal to or only slightly greater 



than distance between tip of tylus and basal margin of pronotum ; 

 clavus of the same brown color as corium ; smaller, length 4 mm. 



(p. 544) brunneus 

 Antennal segment ii, in length, distinctly greater than distance 

 between tip of tylus and basal margin of pronotum; clavus dis- 

 tinctly darker bordering scutellum and commissure; larger, 

 length 4.5-5 mm (p. 544) clavatus 



