148 MISC. PUBLICATION 47 0, U. S. DEPT. OF AGRICULTURE 



from the West Indies, northern Mexico, various localities in southern 

 Canada, and nearly all sections of the United States. 



Hosts. — This species seems to be restricted to coniferous trees, and 

 has been reared from northern white pine (Pinus strobus Linnaeus) ,. 

 western yellow pine (Pinus ponde^osa Lawson), and tamarack (La- 

 rix laricina (DuRoi) Koch). The larvae probably infest nearly all 

 species of Pinus, as the adults have been collected on shortleaf pine 

 (Pinus echinata Miller), Virginia pine (Pinus virgimana Miller), 

 Parry pifion (Pinus parry ana Engelmann), lodgepole pine (Pinus 

 contorta Loudon), and longleaf pine (Pinus palustris Miller). The 

 species has been recorded in the literature as attacking oaks (Quercus 

 sp.) but these records may be from adults collected on these trees or 

 from misidentifiecl specimens. Harris (1862) states that the adults 

 inhabit trunks of oak trees, but in his notebook he records the adults 

 as having been collected on oak logs. 



For a species with such a wide distribution, very little variation is 

 found except in size and color. In most specimens the pronotum is 

 widest at the apical third, with the sides more or less sinuate and 

 converging posteriorly, but occasionally a specimen is found with the 

 sides sinuate and parallel at the middle. There are usually two small 

 callosities on the front of the head, but rarely these are obsolete, and 

 frequently the anterior part of the head of the male is bright green. 

 In nearly all the specimens examined the anterior margin of the 

 prosternum is truncate without any indications of a median lobe, al- 

 though in a few there is a vague median lobe, but this species should 

 not be placed with those having a median lobe on the prosternum. The 

 sculpture on the dorsal surface of the body is more or less variable, 

 but difficult to describe. The length is from 12 to 18 mm. 



Obenberger (1934) places lata Kerremans as a synonym of dentipes, 

 but this is incorrect, as Kerremans (1899) in his original description 

 of lata states that the femoral tooth is pointed, which cannot be 

 applied to dentipes. 



(63) Cheysobotheis dolata Horn 



(Fig. 60; fig. 120, A) 



Chrysolotliris dolata Horn, 1886, Amer. Ent. Soc. Trans. 13: 85, 87, pi. 3. figs. 

 71-74 ; Kerremans, 1892, Soc. Ent. de Belg. Mem. 1 : 212 ; Fall, 1901, Calif. 

 Acad. Sci. Occas. Papers 8: 118: Woodworth, 1913, Guide to California 

 Insects, pp. 194, 196: Cliamberlin, 1917, Ent. News 28: 136-138, figs. 1-6; 

 Van Dyke. 1924, Pacific Coast Ent. Soc. Proc. 2 (2) : 18; Cbamberlin, 1925, 

 N. Y. Ent. Soc. Jour. (1924) 32: 191 (separate, p. 190) ; 1926, Cat. Bupres- 

 tidae North Amer., p. 149; 1929, Pan-Pacific Ent. 5: 115: Obenberger, 1934, 

 in Junk (pub.), Coleopt. Cat, pt. 132, p. 622: Cbamberlin, 1934, Pan-Pacific 

 Ent. 10 : 42, fig. 17 ; Beer, 1940, Pan-Pacific Ent. 16 : 16. 



Female. — Broadly elongate, strongly depressed above, strongly shining on 

 elevated spaces, uniformly piceous, with a vague bronzy tinge ; beneath purplish 

 black, more strongly shining than the depressed areas above. 



Head purplish black, with a narrow, smooth, longitudinal carina on the occi- 

 put, and two small, smooth callosities on the front ; front slightly convex, surface 

 coarsely, deeply, irregularly foveolate-punctate, more or less transversely rugose 

 anteriorly, rather densely clothed with long, erect, white hairs ; clypeus broadly, 

 deeply, arcuately emarginate in front, arcuately rounded on each side. Antenna 

 purplish cupreous, gradually narrowed to apex : intermediate segments distinctly 

 wider than long, subtriangular, not compact, broadly rounded at outer margins; 

 third segment as long as following two segments united. 



