349 



destroying the leaves, whereas in America it is only known to attack 

 a wild plant {% Epilohium). Since it is in Europe and especially in 

 France a very serious pest of the grapevine, even more injurious than 

 the Grapevine Flea Beetle is with us, its natural history has often 

 been treated, especially by the French entomologists, Lichtenstein, 

 Valery-Mayet, Girard, and others. The mode of oviposition, however, 

 has been in some dispute, some authors asserting that the eggs are laid 

 under the old bark near the ground, others that they are deposited on 

 the leaves. Mr. E. Dupont has recently investigated the subject and 

 finds {Progrds Agricole at Viticole, vol. x, No. 37, Sept. 15, 1889, pp. 576- 

 578) that oviposition takes place only on the foliage, the young larvae 

 afterwards entering the ground. The life history of the Adoxus is thus 

 in conformity with that of an allied species, Chrysochus auratus which 

 lives with us on Apocynum midroswmifolimn. We have found the eggs 

 on the leaves and the larvae underground feeding on the roots. The 

 nearest North American SiWie^oi Adoxus, viz, the species of Fidia, also 

 infest the grapevine, but their life histories have never been investi- 

 gated. 



A CATERPILLAR DESCRIBED AS A. COCCID. 



Mr. E. E. Greene furnishes the following information {Ann. and Mag, 

 of Natural History for December, 1890, p. 503): From an examination 

 of type specimens in the British Museum it was found that the Aspidi- 

 otus bicarmatus described by the late F. Walker (Catalogue of Homop- 

 tera, etc., Supplement, p. 306) is in reality the dried-up larva of a Lim- 

 acodid moth allied to the Indian Narosa conspersa. This caterpillar with 

 its coriaceous integument and two well-marked dorsal ridges has a 

 superficial resemblance to a Coccid, but, as Mr. Greene remarks, it is 

 difficult to understand how Walker could have made such a mistake. 



INJURY OF THE HOP CROP ON THE PACIFIC SLOPE IN 1890 BY THE 



HOP LOUSE. 



Mr. Aurelius Todd furnishes in Entomological News for February, 

 1891 (vol. II, No. 2, p. 34), some interesting statistics on the hop crop 

 on the Pacific slope in 1890, and the amount of damage done that year 

 by Phorodon humuli. The hop crop for 1890 in the State of Washing- 

 ton was estimated at 38,000 bales, that of Oregon at 20,000 bales ; total, 

 58,000 bales. Estimating 200 pounds to each bale, and each pound 

 worth 30 cents, we have a total value of $3,480,000. Mr. Todd esti- 

 mates that the loss from the hop louse amoun ted to at least one-fourth of 

 what was gathered, or one-fifth of the entire crop, or to at least $870,000 

 in a single year. The depredations were not evenly distributed over 

 the entire hop-growing area. The i^laces " exposed to the morning sun 

 and sheltered from the wind by woods, etc., suffered most, the upper 

 river bottoms in general next, while some places were entirely free from 

 them." 



