186 



THE AGRICULTURAL NEWS. 



Jl'se 7. 1913. 



INSECT NOTES 



ROOT BOPERS AND OTHER GRUBS IN WEST INDIAN SOILS. 



The following tabular diagram serves to summarize the chief points in regard to the classification, distribu- 

 tion, life-history fti'd parasitism of the more important root borers and other grubs of West Indian .soils. It is intended 

 as an assistance to the memory, and as a partial index to the contents of the preceding articles on the subject: — 



HHYNCHOPHOR.'^. 



NAMl 



DISTEIBUTION. 



Diaprepes ablreviattts. , Barbados, St. Lucia, 

 Dominica. 



Ji.i.oph tfialmus esuriens. 



7'repodes vittatus. 

 Diaprepes spevffleri. 



J)ia/'iepes sp. 

 IHa/inpcs sp. 



Leeward Islands. 



Jamaica. 



St. Vincent, Porto 



Rico. 



Montserrat. 

 Virgin Islands, 



L.VRVA. 



ADULT. 



PARASITK. 



Root borer of cane. Also known [""eeds on leaves of corn 



to attack roots of limes and and cane.s. 



other plants. 



Root borer of canes. Feeds on leaves of limesi 



and plants. 



Root feeder on orange. \EiU atrata 



In Porto Rico, feeds on roots of Feeds on leaves of young- 

 orange, guava, avocado, mango orange trees in Porto Piico, 



and rose. 



Sl'ARABEIDAE. 



l^hytalus smitlti. 

 Lachnostema patrvelis. 



/.achnosterna sp. 

 L'lchvostema sp. 



Lixvlitioitema patens. 



•Ayyriis tumulosus. 

 Tvinarvs bituhercuhitm. 



Slrategus titanus. 



litraiegiis anachwetui. 



C i/cloctp/i all tridenlata 

 C yclocephala dimidiala 

 'jyclocephala riucenlne 

 J^eiicothf/reti.i vincentae. 

 Leiicothyreui' sp 

 Iii/scinalus barhntus. 



Barbados, Mauritius. 

 St. Kitts, Dominica. 



Antigua 

 Porto Rico. 



St. Vincent 



West Indies. 

 Dominica, St Lucia. 



St. Croix, Jamaica, 



' Porto Rico, Virgin Islands. 



iTrinidad. 



Dominica, St. Lucia. 



'fJrenada. 



St. Vincent. 



St. Vincent. 



St. Lucia. 



Barbuda, St. Kitts 



MKLOLOMllIDAi;. 

 Root trimmer of canes. 

 In soil of sugar cane fields. 



In soil of sugar cane field.s. 



Root trimmer of canes, attacks Leaf feeder on orange, etc. 



roots of orange, trimming young 



roots and often girdling the tap 



root. 



Feeds on cacao leaves. 



Eats leaves of various ?'////(/« j>ara- 



plants. lella 



Parasite grub 

 has been found, 

 but adult not 

 known 



Dyxa.stidak. 



Scavenger. 



Feeds on roots of banana. 



Tunnels into base of 

 banana suckers. 



Ditlis d<yrsat<i> 



Feeds on roots of canes and 



tunnels into base of cane stalk. 

 Same as .y. ^iVa)i«s. Tunnels into base of 



young coco- nut trees. 



lEats flowers of cotton. I 



Eats leaves of plants. 



Eats leaves of plants. 



Eats leaves of cacao. 



In Barbuda, tunnels into 



cane plants. j 



