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IN3ECT CONDITIONS IN PORTO HICO DURING JULY, 1931 
M. D. Leonard 
Insular Experiment Station, Rio : Piedras, Porto P.ico 
3 Two adults of the coconut rhinoceros "beetle, Strataegus guadrifoveatus 
Beauv., were received under date of July 16 from Alberto Correa from Utuado 
with the statement that they were found eating the shoots of young cane plants; 
the injury was noted in several places near Utuado. (M.D.L. and P. Sein. ) 
Adults of Li gyrus tumulosus Bum. were abundant at lights during the 
month at Isabela and many were being eaten by the imported toad, Bufo ma.rinus 
L. (G.N.W.) 
Dyscinetus "barbatus Pab. adults were absent at lights during the whole 
month. (G.N.W.) 
The leafhopper Protale bra brasiliensis DeLong, known to attack sugarcane 
occasionally, continued to be abundant throughout the month on Bidens pi Ipsa 
on the El Morro Golf Course in San Juan. (M.D.L.) 
Mr. Fletcher, Manager of Hill Bros. Co., a large cannery located in Rio 
Piedras, stated on July 22 that all during the past fiscal year the weevils 
Diaprepes spengleri L. had done damage by stripping the foliage on a consider- 
able number of young trees in his grove at Manati, necessitating much hand- 
picking of the weevils "by boys. He stated that less trouble was . experienced 
in his Rio Piedras grove. (M.D.L.) 
The weevil Lachnopus curvipe s Pab. has been locally more abundant around 
Isabela than the common "vaauita" ( Diaprepes abbreviatus L.) which causes the 
bulk of the injury to the leaves. (G.N.W.) 
The orange dog, Papilio androgeus Cramer. On July 12 a butterfly emerged 
from a caterpillar found on grapefruit foliage at Isabela some time previous. 
On the 3ame day two other caterpillars were brought in. (G.N.W.) 
The papaya fruit- fly, Toxotrypana curvi Cauda Gerst., was sent in under 
date of July 8 by T. B. McClelland from the Mayaguez Experiment Station in a 
rather small and rather green fruit which contained 14 newly formed puparia 
and one full-grown larva. (M.D.L.) 
One fruit was found infested at the substation at Isabela on July 3 and 
sometime during the month nearly all of the fruit on several plants in a farm 
near Aguadi 11a were infested. (G.N.W.) 
The introduced ladybird beetle Crypto laemus montrouzieri Muls. was ob- 
served during the month, but not very commonly, at Isabela feeding on a soft 
scale. (G.N.W.) The scale may possibly be Pulvinaria psidii Mask., since 
there is a previous record on this host plant and scale for the ladybird in 
Porto Rico. 
