65-4 FAMILY IV. SCOIA'TIMS. 



North Mt., Pa., Aug. 31, under spruce bark. (Wenzel.) Oc- 

 curs in Maine, Michigan, New Hampshire, Canada, Pennsylvania. 

 Host trees, Picea rubens, canadensis, mariana. 



1056 (9182). DENDROCTONUS PUNCTATUS Lee., 1868, 173. 



Dark reddish-brown. Head convex, with moderately distinct anterior 

 impression. Punctures of pronotum distinct, coarse, irregular; posterior 

 half of proepisternal area punctured. Striae of elytral declivity impressed 

 and with coarse punctures; elytral striae distinctly impressed; punctures 

 coarse and distinct; interspaces rather narrow, convex, moderately rugose 

 on dorsal area, but nearly smooth on lateral area. The coarse punctures 

 of elytral striae, especially on the declivity, at once distinguish this 

 species. Length 6.5 mm. 



Adirondack Mts., New York; Pennsylvania. High Mts. of Ran- 

 dolph Co., W. Va., under bark on spruce stump. 



1057 (9179). DENOROCTONTJS TEREBRANS Oliv., 1795, 6. 



Piceous to deep black, the latter prevailing. Front convex, without 

 impressions, epistomal process moderately broad, lateral angles tubercu- 

 late. Pronotal punctures very coarse, regular, moderately dense, scarcely 

 decreasing in size toward base. Elytra without long hairs toward base. 

 Length 5 8 mm. 



Dunedin, Fla., Feb. 12 Nov. 9. Lahaway, N. J., Mch. 23, in 

 dying pine. (Wenzel.) Ranges from New Hampshire and Penn- 

 sylvania south to Texas and Florida. Host trees, Finns palustris, 

 rigida, tccda, scrotina, stro~bns, echinata, rubens. Specimens are 

 sometimes found which appear to be hybrids with valens. 



1058 (' ). DENDROCTONTJS VALENS Lee., 1S60, pt. 2, 59. 



Above light to dark red, never black, ventral part of body light red 

 to black. Distinguished from terebrans by less uniform and more densely 

 placed pronotal punctures, much broader epistomal process, with the 

 lateral sections less angular and more oblique, and the more evident and 

 numerous hairs on the anterior dorsal area of the elytra. Male, mandi- 

 bles stouter, antennal club narrower, declivity more opaque, striae less 

 distinctly impressed, punctures more obscure. Length 5.7 9 mm. (Pig. 

 132.) 



West Point and Ithaca, N. Y., May 3 June 2. Occurs from 

 Canada and New England south to North Carolina; also in the 

 Western Mts., LeConte's type being from California. Host trees, 

 Finns many species, Picea, Larix and Abies. 



In addition to the species above treated, it is necessary to consider 

 D. borealis Hopkins (1909-a) and D. rufipennis Kirby (1837). The first 

 is found in Alaska, Kenai Peninsula; was known to Dr. Hopkins by but 

 five specimens in 1909, and is brought within the scope of our work by 

 its mention in a list of Labrador Coleoptera by John D. Sherman, Jr., based 



