8o NEW YORK STATE MUSEUM 



b Head suboblong and prominent ; pronotum nearly equably punctured, 

 not more strongly roughened in front; tarsi witli the 4th segment 

 mucii smaller than the 3d, which is usually dilated and hcartshapcd 

 or bilobed [pi. 7, fig. 20, pi. 8, fig. 21; pi. 9, fig. 25; pi. 10, fig. 26; 



pi. II, fig. ji, 32, 36, 37] Hylesininae 



bb Head globose, not visible from above, deeply immersed in the pro- 

 notum, which is prolonged and usually strongly roughened with 

 stout, backward pointing spines in front, and smooth or punctured 

 behind ; 3d tarsal segment simple, 4th segment distinct [pi. 4, fig. 6, 

 pi. 5, fig. 10-12; pi. 7, fig. 19] Ipinae (Tomicini) 



Genera of the Eccoptogasterinae 



a I-'oretibiae with the outer apical angle produced into a curved spine, 

 outer border unarmed 

 b V'enter of abdomen with the caudal portion bent abruptly dorsad 



[pi. 3, fig. 4J Eccoptogaster Herbst. (Scolytus Geoff.) 



bb Venter of abdomen regularly curved, nearly horizontal. .Loganius Chap. 

 aa Foretibiae with the outer apical angle produced into a bifid spine, outer 

 border near the base of the spine armed with a small tooth 



/' ■' Prothorax with a defined side margin." Bothrosternus Eich. 



/ b " Prothorax witli no defined side margin, but usually with a fold above 

 the femoral impression 

 c " Sutures of the club curved ; rostrum narrower than the front ; body 



oval." Pagiocerus Eich. 



cc " Sutures of the club straight ; rostrum scarcely narrower than the 



front ; body oblong." (Blandford) Cnesinus Lee. 



The subfamily Erineophilinae contains one genus, Erineophilus Hopk. 



Genera of the Hylesininae 



a Antenral funicle w^ith less than 4 segments 



b Antennal funicle with 2 segments; club not distinctly annulated 



Crypturgus Erich. 



bb Antennal funicle with 3 segments; clul) annulated Dolurgus Eich. 



aa .\ntennal funicle with more than 4 segments 



b Antennal club not annulated, pubescent on both sides [pi. 9, fig. 24] 



c Eyes completely divided Polygraphus Erich. 



cc Eyes not divided [pi. 10, fig. 26] Chramesus Lee. 



bb Antennal cluli annulated [pi. 9, fig. 27; pi. 10, fig. 28-30] 



c Antennal clnl) lamellate, of 3 loosely adjoined segments [pi. 10, fig. 



30I . . Phloeotribus Latr. 



cc Antennal clul) not lamellate, segments closely connate [pi. 9, fig. 27; 

 pi. 10, fig. 28. 29] 

 d Antennal club strongly compressed 



c Antennal funicle with 7 segments Hylesinus Fabr. 



ee Antennal funicle w^ith 5 segments 

 / Front coxae not contiguous 



g Antennal funicle with outer segments distinctly broader; 



coxae moderately distant [pi. 9, fig. 27] 



Phloeosinus Chap. 



