50 MISC. PUBLICATION 6 9 8, U. S. DEPT. OF AGRICULTURE 



Indiana, Michigan, Montana, Nebraska, New Jersey, New York, North 

 Carolina, Pennsylvania, South Carolina, South Dakota, Texas, Vir- 

 ginia, Washington, and Wisconsin. 



Hosts. — This species has been reared from Pinus ponderosa in Idaho 

 and Pinus strobus in Virginia. Knull (1934) collected adults in the 

 outer bark of a living pitch pine tree, and L. A. Hetrick collected 

 adults at Chatham, Va., infesting the bark of Pinus taeda trees that 

 suffered severe fire injury during the preceding year. 



Stephanopachys densus (LeConte) 



Dinoderus densus LeConte, 1866, Sniithsn. Inst. Misc. Collect. 167: 102; Horn, 



1878, Amer. Phil. Soc. Proc. 17: 549-550; Casey, 1898, N. Y. Ent. Soc. Jour. 



6: 75. 

 Stephanopachys densus Lesne, 1898, Soc. Ent. de France Ann. (1897) 66: 324, 



326; Leonard, 1928, N. Y. (Cornell) Agr. Expt. Sta. Mem. 101: 415; Brimley, 



1938, Insects of North Carolina, p. 198. 



The following is a copy of LeConte's original description : 



Elongatus, cylindricus, niger subopacus, setis fulvis erectis vestitus, thorace 

 latitudine baud breviors, lateribus antice cum apice rotundatis et fortiter denta- 

 tis, postice subparallelis subserratis, angulis posticis rotundatis, disco convexo 

 dense granulato, granulis anticis acutis; elytris confertim fortiter punctatis, 

 subgranulatis, postice aequaliter convexis. Long. .12. 



Two specimens ; New York. Differs from D. siibstriatus by the thorax being 

 more densely granulate and by the elytra not being substriate, and from D. 

 porcatus by the elytra not being so rough, and from both by the sides of thd 

 thorax from the middle being only feebly serrate. 



The types of this species in the LeConte Collection have not been 

 examined. The characters used in the key for separating densus and 

 hispidulus are based entirely on the specimens identified as those two 

 species in the Casey Collection. The specimens of densus and hispidu- 

 lus as identified by Casey are both valid species, but there may be some 

 doubt about Casey's identification of densus. If not correct, his his- 

 pidulus might be a synonym of densus LeConte and his specimen iden- 

 tified as densus would require a new name. The Casey specimens 

 identified as densus LeConte are from South Carolina. 



Stephanopachys hispidulus (Casey) 



Dinoderus hispidulus Casey, 1898, N. Y. Ent. Soc. Jour. 6 : 75. 



Stephanopachys hispidulus Leonard, 1928, N. Y. (Cornell), Agr. Expt. Sta. Mem. 



101 : 415 ; Lesne, 1938, in Junk (pub.) , Coleopt. Cat., pt. 161, p. 20. 

 Dinoderus parvulus Casey, 1898, N. Y. Ent. Soc. Jour. 6: 75. (New synonymy). 

 Stephanopachys parvulus Lesne, 1938, in Junk (pub), Coleopt. Cat, pt. 161, p. 21. 



Uniformly dark reddish brown to brownish black, the palpi, anten- 

 nal clubs, and tarsi brownish yellow. 



Head with front and elypeus coarsely, densely granulose or punctate, 

 sparsely clothed with long, inconspicuous, erect hairs ; labrum coarsely, 

 uniformly punctate ; mentum subtruncate in front. 



Pronotum strongly convex, slightly gibbose in front of scutellum, 

 widest near middle ; sides broadly rounded, feebly, irregularly serrulate 

 along margins ; surface sparsely clothed with rather long, recumbent 

 hairs on disk, the hairs long and erect toward sides and anterior mar- 

 gin, coarsely, densely granulose on basal half, the granules flattened, 

 distinctly separated, and slightly elongate in front of scutellum, apical 

 half with numerous broad, short, strongly elevated teeth, which are 

 longer, acutely rounded at apices, and separated at bases from one 

 another along anterior margin. 



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