165 



sordidus Grav.; Micronychus sidcalus Vvoy. z=zCyp1ionnmus dorsalis Horn; 

 Erirhinus viridis Frov . ^nPhytonoyniis nlgrirostris Fab. ; Homogaster quebecen- 

 sis 'Proy.=Piazurus subfasciatus Lee], p. 5-36. Index, p. 37-38. [See 

 Rec. No. 991.] 



* 993. Cyrus Thomas, State Entomologist. Sixth 

 report of the State Entomologist (Walsh, 1. Le Baron, 4. 

 Thomas, 1.) on the noxious and beneficial insects of the state of 

 Illinois. — The first biennial report by Cyrus Thomas. — 

 Springfield, III., 1877. 174 + 4 -f- 2 + p., 31 fig. 22-5 X 

 14-5. t 18-3 X 10-8. 



Part I. Report, p. 1-62. a. Plan of work, acknowledgments, general 

 recommendations, p. 3-7. b. Horticultural entomology [directions for 

 planting and tending nurseries and orchards, so as to preserve them from 

 insects and diseases; lists of useful, doubtful and noxious birds and useful 

 insects], p. 8-15. c. History, description and habits of Anisopteryx; 

 remedies, p. 16-21. d. Descriptions and histories of wire-worms [Ela- 

 teridae]; remedies, p. 21-32. e. Habits, descriptions and lists of coleo- 

 pterous, lepidopterous and hymenopterous borers; synoptical table of wood- 

 boring larvae; remedies, p. 32-44. /. Occurrence of Caloptenus adanis 

 in Illinois; breeding grounds and migrations of C. spretus and C. dijfer- 

 enlialis, means against locusts, p. 44-56. g. Habits and oviposition of 

 Leucania unipuncla, p. 56-59. h. Description and geographical distribution 

 of Murgantia histrionica, p. 69-60. i. Description of larva and imago of 

 Ceramica picta, p. 60. j. Description of larva of Selandria rubi, means 

 against this and against Nematus ventricosus, p. 61. 



Part II. The introduction to, and first jiart of, a manuel [sjc] of economic 

 entomology for the state of Illinois. — The part herein present includes only 

 the Coleoptera, or beetles [definition of insects and of their several 

 orders, list of their important families, description of the developmental 

 stao"es and of the structure of imagos, directions for the identification of 

 injurious species, characters of the several subdivisions of Coleoptera ; 

 descriptions, habits and food of about 112 species of Coleoptera, beneficial 

 or injurious, witli means against many of them], p. 63-174, fig. 1-31. List 

 of trees, plants and other substances injured by insects desci-ibed in this 

 report, with names of the species injuring, p. 1-4, Index, p. 1-2. Errata. 

 * 994. A. S. Packard, Jr. Half hours with insects. Bos- 

 ton, Estes and Lauriat, 1877. 8 + 384 p., 2 pi. (1 pi. col- 

 ored). 20-5 X 14. t 14-5 X 9. 260 fig. 



[See Rec, no. 309.] 



10. Insects as mimics, p. 257-294, fig. 196-229. 



Use of mimicry as a protection and disguise ; insects which mimic their 

 surroundings ; insects which mimic other insects ; prophetic and synthetic 

 types of insects. 



