62 BIBLIOGRAPHY OP ECONOMIC ENTOMOLOGY. 
859. Hopkins, A. D. Injurious insects, and how to deal with them in 
May. <W.Va. Farm. Bull., v. 1., No. 13, May, 1893. 
Remedies for Nematus ventricosiis, Hwmatobia serrata, Clisiocampa americana, 
and Pliorbia brassicce. 
860. Hopkins, A. I). Notes on timber worms and bark borers. <Proc. 
Ent. Soc. Wash., 1893, v. 3, p. 813. 
Short notes on Hyleccetus lugubris, Serropalpus striatus, Lymexylon sericeum, 
and Agrilus sp. 
861. Hopkins, A. D. Notes on food habits of Gorthylus punctatissimus. 
<Proc. Ent. Soe. Wash., 1893, v. 3, p. 105. 
862. Hopkins, A. D. Short notes on list of pine infesting insects. 
<Proc. Ent. Soc. Wash., 1893, v. 3, pp. 192-193. 
863. Hopkins, A. D. Destructive scolytids and their imported enemy. 
<Insect Life, v. 6, December, 1893, pp. 123-129. <Also in 24th 
Ann. Kept. Ent. Soc. Ont., p. 71. 
864. Hopkins, A. D. Defects in wood caused by insects. <Bull. No. 
35,W.Va. Agric. Exp. Sta., January, 1894, pp. 291-306, figs. 26. 
Classifies and discusses the cause of insect damage to timber. 
865. Hopkins, A. D. Black holes in wood. <Bull. No. 36,W.Ya. Agric. 
Exp. Sta., February, 1894, pp. 311-336, figs. 43, pis. 2. 
Injury due to scolytid beetles, extent of damage, use of the lumber. 
866. Hopkins, A. D. The relations of insects and birds to presentforest 
conditions. <Garden and Forest, 1894, p. 348. 
867. Hopkins, A. D. Insect enemies of the yellow poplar. <The Tiin- 
berman, 21 July, 1894, pp. 8, figs. 11. 
Remarks on Corthylus Columbia)! us, Centrodera decolorata, Hyleccetus lugubris, 
Xyleborus pubescens, and Xyletinus peltatus. 
868. Hopkins, A. D. Notes on some discoveries and observations of 
the year in West Virginia. <Insect Life, v. 7, October, 1894, 
pp. 145-151. 
869. Hopkins, A. D. Serious trouble over. <Southern Lumberman, 
1894; <Hardwood, v. 6, November, 1894, pp. 270-271; <Tim- 
berman, 1894. 
870. Hopkins, A. D. Some interesting conditions in wood resulting 
from the attack of insects and woodpeckers. Abstract. <Proc. 
A. A. A. Sci., 1894, p. 252. 
871. Hopkins, A. D. “The northern timberworm of the grub species.” 
<Southern Lumberman, 5 January, 1895, p. 7, 5 figs. 
Habits of Monoliammus sp. 
872. Hopkins, A. D. Forms of the so-called potato scab, caused by 
insects. <Special Bull. No. 2, W. Va. Agric. Exp. Sta., 1895, 
pp. 97-111, figs. 11. Notice of in Insect Life, v. 6, p. 349. 
Discovery of a small fly as the cause, description of the same, and remedies. 
873. Hopkins, A. D. Notes on the habits of certain Mycetophilids, 
with descriptions of Upidapus scabiei, sp. nov. <Froc. Ent. 
Soc. Wash., v. 3, pp. 149-159,12 figs., March, 1895. 
