ENTOMOLOGICAL NEWS 



AND 



PROCEEDINGS OF THE ENTOMOLOGICAL SECTION 



THE ACADEMY OF NATURAL SCIENCES. PHILADELPHIA. 



VOL. XXXI. 



MAY, 1920. 



No 5. 



CONTENTS 



Smyth Cotton Insects in Porto Rico 121 

 Hebard The Genus Timema Scudder, 

 with the Description of a New 

 Species (Orthoptera, Phasmidae, 



Timeminae) 126 



Skinner Descriptions of New Species 



of Hesperidae (Lepidoptera) .... 132 

 Coding The known Membracidae of 



Ecuador (Homop.) 135 



Editorial Remember the Veterans!. . 137 



Change of Address 138 



Garnett Notes on the Habits of 

 Promecognathus laevissimus De- 

 jean (Col., Carabidae) 138 



Brimley Notes on North Carolina 



Dragonflies (Odonata) 138 



Crosby The Cornell University En- 

 tomological Expedition to South 

 America of 1919-20 139 



The Williamson Expedition in Vene- 

 zuela 141 



Stoner Sciocoris microphthalmus 

 Flor. in Northern Michigan 

 (Heterop.) 141 



Entomological Literature 141 



Review Rohwer & Williams' Philip- 

 pine Wasp Studies 145 



Review Curtis Riley's Some Habitat 

 Responses of the Large Water 

 Strider, Gerris remigis Say 147 



Obituary Lord Walsingham 148 



William E. Sharp, Thomas Broun, 



Bruce F. Cummings, Frederick . 

 Herschell Waterhouse, Emily I . 

 Morton /. . . . 1 4<> 



MAY 



Cotton Insects in Porto Rico.* 



By E. GRAYWOOD SMYTH, 

 Entomologist, Insular Experiment Station, Rio Piedras, P. R. 



Very little having been published concerning the insect 

 pests of cotton occurring in Porto Rico, it is the object of 

 this paper to present a brief discussion of the species that 

 feed upon this crop, whose growing importance on the Island 

 is recognized. 



It should be said that no evidence has yet been found of 

 presence of the dreaded pink boll worm, Pectinophora gos- 

 sypiella Saun., though the pink scavenger worm, Pyroderces 

 rileyi Wals., is frequent enough, and does no perceptible 

 damage. The common boll-worm, Chloridea obsoleta Fab., 

 while a not uncommon pest of corn on the Island, has not 



*Published by permission of the Director of the Station. 



121 



