IXSKCTS AFFECTIXC; PARK AND WOODLAND TREES 345 



the month of May ami that hirvac arc found in abundance from the first of 

 June lo llie he^inninu- of winter. I'upae commence to appear earl\- in |uly 

 and ma)- he found from then till winter. The adults of the first hrood 

 devehjp aliout thi; mithUe of July and emers.,re in .Au^-ust or possibly late in 

 July since he has found nouul; larxac- b\- Aul;'. io. Late in the fall all 

 stages occur in the l)ark of infested trees and often in the bark of the roots 

 as much as 6 inches below the surface of th(! ground. 



These observations agree very closely with our own in this section as 

 large numbers of eggs were found by us at Round Lake, Sep. 20, 1901. 

 The observations of I )r 1 lo])kins indicate that there are at least two broods 

 in West \ irginia and the same aj^pears to be true for the latitude of 

 Albany. 



Dr Ho])kins states that he has observed a clerid, Thanasimus 

 clubius babr., attack and kill this large l)ark beetle, and he records hnd- 

 ing large numbers of th(! beetles in the stomachs of brook trout caught in 

 Randolph count)-, W. \"a. the latter ])art of May. 



Bibliography 

 1862 Harris, T. W. Insc( ts Injurious lo Vegetation, p. 86. 

 1858 Fitch, Asa. Ins. X. Y. 4th Rei)'t 1S57, ]>. 42-43. 

 1S90 Packard, A. S. I'. S. Ent. Com. 5tli Rcp't p. 721. 

 1899 Hopkins, A. D. W. \'a. Agric E.\p. Sta. Bui. 56, p. 284, 294, 296, ^^^. 342, 344, 



347. 349. 39^. 415-20- 

 1903 Felt, E. P. I'lir. I'isii & Cianic Com. ytli Rep't, [). 480-Si. 



Coarse writing bark beetle 

 'J'oniiius cixlligraphus C'jerm. 



A rather stout brownish or blackish cylindric beetle, about % inch in length, makes 

 more or less longitudinal Inirrows in the thicker bark of the trunk and larger limbs of 

 various ])ines. 



This is one of the largest and commonest species of the genus found 

 on or in the thick bark of our natixe ])ines. Its operations have been 

 observed by the writer in many localities in and about Albany during the 

 seasons of 1899-1902 and in sonic instances at least it appeared to be an 

 active partner in causing very serious injuries to these trees. 



