518 BEPORT OF NATIONAL MUSEUM, 1892. 



Charles V. Riley — Continued. 



The subject is treated after the following scheme: Characteristics of insects; scope and im- 

 portance of entomology ; classification of Hexapods; collecting; killing and preserving in- 

 sects; entomotaicy; insect boxes and cabinets; arrangement of insects in the cabinet; museum 

 pests, mold, etc.: the rearing of insects; directions for packing and transmitting insects; 

 notes and memoranda; instructions for collecting and preserving Arachnids and My riapods; 

 text -books and entomological works; how to obtain entomological books and pamphlets. 

 Charles V. Riley and L. O. Howard. The three pear tree Psyllas. 



Tnseet Life, IV, Nos. 3 and 4, November, 1801, pp. 127, 128. 



A list ract of a paper by Dr. F. Loew, pointing out the differences in life habits of the three 

 specimens of Psylla (Ps. pyrisuga, Ps.pyri, and Ps. Pyricola) known to infest pear trees in 

 Germany and Austria, with a synoptic table of the structural characters. Also characteris- 

 tics of a fourth species, Ps. sinvulans, which has been found in England on pear trees. 

 Charles V. Riley and L. O. Howard. An interesting aquatic bug. 



Tnseet Life, iv, Nos. 5 and C, December, 1891, pp. 198-200, Fig. 22. 



Original figure and characteristics of a remarkable North American aquatic Heteropteron 

 assigned to the family Hydrobatidce, and must nearly related to the genus Metrobateg. Subse- 

 quently (1. c. Nos. 9 and 10, June, 1892, p 321) Dr. E. Bergroth named the inse< t ltheumatobates 

 rileyi. 

 Charles V. Riley and L. O. Howard. The Potato-Tuber Moth. (Ufa solanella 

 Boisd. ) 



Insect Life, iv, Nos. 7 and 8. April, 1892, pp. 239-242, Fig. 27. 



Ravages of Lita solanella in New Zealand, Tasmania and Australia; Mr, Tryon's account 

 of its habits and life-history ; appearance of the insect in California in 1891 ; suggestion of 

 preventive measures ;. figures of the insect in all states, and mode of work of the larva in a 

 potato. 

 Charles Y. Riley and L. O. Howard. A genus of Mantis. Egg parasites. 



Insect Life, iv. Nos. 7 and 8, April, 1892, pp. 242-245, Figs. 28-31. 



Wide geographical distribution and specific richness of the Chalcidid genus rodagrion, 

 which lives parasitically in the eggs of Mantids : history and systematic position of Podagrion , 

 arrangement of the individual eggs in the egg-mass of Stagmomantis Carolina, and of an un- 

 named Australian Mantid; mode of issuing of the young Mantids and the parasites from the 

 egg-mass; figures of Podagrion mantis, egg-mass of Stagmomantis earolina; cross-section of 

 the same, and of the egg-mass of an Australian Mantid. 

 Charles V. Riley and L. O. Howard. The Pea and Bean Weevils. 



Insect Life, iv, Nos. 9 and 10, June, 1892, pp. 297-302, Figs. 40-43. 



Resume of the life history of Bruchus pisi, and evidence as to whether the larva destroys the 

 germ of the pea; natural history of Bruchus fabce, and points wherein it differs from that of 

 B.pisi; description of the first larva of B. fabce, the most remarkable character being the 

 temporary legs. Figures of both species of Bruchus, and original figure of the first larva of 

 B. fabce. 

 Charles V. Riley and L. O. Howard. The Locust and Grasshopper Outlook. 



Insect Life, iv, Nos. 9 and 10, June, 1892, pp. 321-323. 



Mainly a reproduction of a paper read before Section I of the American Association fur the 

 Advancement of Science, at the Washington meeting (August. 1891) regarding the injury done 

 by grasshoppers, and the movements of the migratory species in various parts of the United 

 States in 1891. 

 Charles V. Riley and L. O. Howard. Some' Icerya and Pedalia notes. 



Insect Life. in. Nos. 11 and 12, August. 1801. pp. 439-441, Fig. 31. 



Perfected figures of the Australian Ladybird, Tedalia eardinalis, in the larva, pupa, and 

 imago states. Account of the attempts to transport living Tedalias from California to the 

 Cape Colony, New Zealand, and Egypt. 

 Charles V. Riley and L. O. Howard. Experiments with a Hate-Palm Scale. 



Insect Life, in, Nos. 11 and 12, August, 1891, pp. 441-143. 



A number of date-palm trees received in 1890 by the IT. S. Department of Agriculture from 

 northern Africa with a view to establish them in California proved to be badly infested with 

 a scale, Parlatoria zizyphi. After often repeated treatment with kerosene emulsions of vari- 

 ous strengths the scales were finally exterminated without injury to the trees. 

 Charles V. Riley and L. O. Howard. Some of the bred parasitic Hymenoptera 



in the National Collection. 



Insect Life, ill, Nos. 11 and 12. August, 1891, pp. 460-464. 



Systematic enumeration of the rearings of North American parasitic Hymenoptera of the 

 families Tchneumonidce (subfamilies Tryphonince, Pimplince, and Trigonalidce.) Continued 

 from Insect Life, in, No. 4, November, 1890, p. 158. 



