278 THE CA.NADIAN f:NTOMOLOGlST, 



only lit at the landings when freight or passengers are transferred. These 

 lights attract many insects, including several species of Cicindelidae, which 

 may be easily collected on the deck under the lights. The most common 

 species taken were Cicindela repanda, C. hirticollis, C. punctulata and 

 C. cuprescens. These species are very common along the river shore, 

 where the sandy strip, extending from the river's edge to the levees, forms 

 an excellent breeding place for them. 



The most common insect attracted by the electric lights is the 

 Staphylinid Blediiis gularis, which swarms upon the decks in countless 

 thousands. By means of a small shovel I filled a large cyanide bottle 

 full of this species in less time than it takes to tell it. Indeed, so com- 

 mon was the species that the electric lights were turned on only when 

 actually needed at each landing, and by the time another landing was 

 reached the decks would be nearly clear. Very often many of the speci- 

 mens were trampled under foot and gave out a peculiar sickening odour. 



Water beetles, especially the Hydrophilidse, are very common. The 

 family Heteroceridse is exceedingly common, the most abundant species 

 being Hetei-ocenis ventralis, H. tindatus, var. limbatus, and H. pallidus. 



The only Coccinellidae noticed were Megilla maculata, Hippodamia 

 convergens and Coccinella g-?iotata. 



Cerambycidae and Chrysomelidse are especially common. Lema 

 peninsuke was so thick that large numbers would strike against a person 

 when walking along the levees in the early morning. Flying with this 

 species were large numbers of Disofiycha crenicollis and D.pennsylvanica. 



Orthroptera are fairly well represented by several species, the most 

 common being Sczidderia airvicauda, Dissosteira Carolina, Shistocerca 

 americaimm, Acridiian obsairum, Melanoplus differentialis and M. 

 atlanis. 



Hemiptera, especially Homoptera, are very abundant. Among the 

 Heteroptera the most common species collected were Anmestus pusillus, 

 Mciapodius sp., Lepioglosstis phyliopus, Geocoris bullaius and Lygus 

 praiensis, while many species of Notonectidae and Corisidas were met 

 with. 



Many interesting species of Homoptera are to be found in this region 

 Cicada tibicen is very common, while Clostopiera xanthocephala occurs 

 in large numbers. Other common species are Agallia 4-?totata, Diedro- 

 cep/iaia inoiiipes, D. versuta, Chlorotettix viridis and Homalodisca 



