BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 47 



570. HOWARD, L. O. The work against Icerya purchasi in Portugal, 



with an account of the introduction of Nowus cardinalis. 

 <Bull. No. 18, n. s., Div. Ent., U. S. Dept. Agric., 1898, pp. 

 30-35. 



571. HOWAED. L. O. Cotton field insects. <Bull. No. 18, n. s., Div. 



Ent., U. S. Dept. Agric., 1898, pp. 85-88. 

 Long list of species taken in trap lantern. 



572. HOWARD, L. O. The introduction of beneficial ladybirds from 



Australia into India. <Bull. No. 18, n. s., Div. Ent., U. S. 

 Dept. Agric., 1898, pp. 89-90. 

 An account of the various attempts. 



573. HOWARD, L. O. The sugar-cane borers of the Mascarene Islands. 



<Bull. No. 18, n. s., Div. Ent, U. S. Dept. Agric., 1898, 

 p. 90. 



574. HOWARD, L. O. An invasion of the larger digger wasp. <Bull. 



No. 18, n. s., Div. Ent., U. S. Dept. Agric., 1898, p. 92. 

 Note on Megastizus spetiosus. 



575. HOWARD, L. O. Recent injury by the sugar-cane beetle and 



related species. <Bull. No. 18, n. s., Div. Ent., U. S. Dept. 

 Agric., 1898, pp. 92-93. 

 Damage by Ligyrus rugiceps and L. gibbosus. 



576. HOWARD, L. O. A new enemy to the grapevine in Mexico. 



<Bull. No. 18, n. s., Div. Ent., U. S. Dept. Agric., 1898, p. 93. 

 Note on Heterachthes zeneolus. 



577. HOWARD, L. O. Westward spread of the common asparagus 



beetle. <Bull. No. 18, n. s., Div. Ent., U. S. Dept. Agric., 

 1898, pp. 93-94. 

 Note on Crioceris asparagi. 



578. HOWARD, L. O. An interesting case of myiasis. <Bull. No. 



18, n. s., Div. Ent., U. S. Dept. Agric., 1898, p. 97. 



579. HOWARD, L. O. The European bat-bug in America. <Bull. 



No. 18, n. s., Div. Ent., U. S. Dept. Agric., 1898, p. 97. 

 Note on Acanthia pipistretti. 



580. HOWARD, L. O. A radical novelty in chinch bug work. <Bull. 



No. 18, n. s., Div. Ent., U. S. Dept. Agric., 1898, pp. 97-98. 

 Chinch bugs on lawns in Brooklyn, N. Y. 



581. HOWARD, L. O. Poisoned potato slices for Oniscus. <Bull. 



No. 18, n.*s., Div. Ent., U. S. Dept. Agric., 1898, pp. 98-99. 



582. HOWARD, L. O. Notes from correspondence. <Bull. No. 18, 



n. s., Div. Ent., U. S. Dept. Agric., 1898, pp. 99-101. 

 Short notes on many species. 



583. HOWARD, L. O. The economic status of insects as a class. 



<Science, 17 February, 1899, pp. 234-247. <Sci. Amer. 

 Supp., March, 1899, pp. 1209-1210. 



