CYDNIDAE OF THE WESTERN HEMISPHERE — FROESCHNER 597 



5. Corium highly polished; basal half of costa strongly depressed; male with 



ventral margin of anterior tibia abruptly, subquadrately expanded (fig. 



128) at apex dilatipes, new species (p. 602) 



Corium distinctly alutaceous; costa strongly convex for full length; anterior 

 tibia of male not expanded ventrally near apex. 



interruptus, new species (p. 608) 



6. Size larger, length of body 8 mm. or more 7 



Size smaller, length of body less than 7.5 mm 10 



7. Prosternal carinae as high as or higher than labial II (fig. 27). 



levipennis (Signoret) (p. 609) 

 Prosternal carinae not more than half as high as labial II 8 



8. Scutellum discally with numerous (35 + ) coarse, sunken, foveate punctures, 



crowded and forming coarse, transverse rugae between them. 



planicollis (Horvdth) (p. 621) 

 Scutellum with few widely scattered, fine punctures 9 



9. Pronotum with a single, irregular, medially interrupted line of close-set small 



punctures along the site of the transverse impression; posterior pronotal 



lobe impunctate horvathi, new species (p. 606) 



Pronotum with punctures coarse, along site of transverse impression forming 

 a band that extends back onto posterior lobe . . bergi (Signoret) (p. 601) 



10. Labium long, distinctly surpassing posterior coxae; prosternal carinae 



abruptly lobed (fig. 25) longulus (Dallas) (p. 611) 



Labium short, not reaching apices of posterior coxae; prosternal carinae 

 not lobed 11 



11. Antennal II shorter than I, about half as long as III. 



orchidiphilus, new species (p. 618) 

 Antennal II longer than I, nearly or quite equal to III 12 



12. Scutellum discally without large punctures; apex of mesocorium impunctate 



or with few punctures near radial vein 13 



Scutellum discally and usually mesocorium apically with numerous distinct, 

 large punctures 14 



13. Jugum with one submarginal setigerous puncture in front of eye. 



viduus (St&l) (p. 627) 

 Jugum with four submarginal setigerous punctures in front of eye. 



triangularis, new species (p. 625) 



14. Jugum with three, widely separated, setigerous punctures anterior to eye 



(fig. 44) 15 



Jugum with two, three, or more close-set, setigerous punctures anterior to 

 eye, sometimes with several more widely spaced ones distally (figs. 42, 43). 



lugubris (Stai) (p. 613) 



15. Corium distinctly alutaceous (at 15X) . . alutaceus, new species (p. 598) 

 Corium shining, not distinctly alutaceous (at 30X) 16 



16. Costa without setigerous punctures; pronotal transverse impression weak, 



marked by irregular band of small punctures. 



ovalis, new species (p. 620) 



Costa with one setigerous puncture; pronotal transverse impression distinct, 



obsolete medially, marked by regular row of large punctures 17 



17. Larger, length of body 6.4-7.0; head with subapical, distinct, poorly defined 



depression (in areas indicated by dotted circle on fig. 44) ; clypeus elevated 



apically bacchinus, new species (p. 599) 



Smaller, length of body 4.9-5.5; head without subapical depression; clypeus 

 not elevated apically murinus (Van Duzee) (p. 616) 



