-55- 
From early October throughout the winter Diabrotica porracea Kar. has "been 
troublesome to grapes. It has also "been found on lemon and orange, and was 
recorded as doing some damage to potatoes during the winter. 
Diabrotica vittata Fab. var. damages the leaves of chiberre, and is 
occasionally found in the blossoms of cucumber. Baring the fall it was so nume- 
rous on the chiberre vines that the beetles would rise in swarms when disturbed. 
JSpilacima borealis Fab. was collected during late June damaging chayote. 
During- late August it was found on caiba. 
Spilachna virgata Mais, badly chafes leaves of dama ( Citharexylum caudatum ) . 
Observations were made in mid-September at Paso Ancho de San Sebastian. 
F/oilachna defect a. Muls. was found on aguacatillo ( Phoebe tonduzii ) , a tree 
which we are trying out as a stock for avocado. The beetle chafes the leaves. 
Early in January it was also collected on tobacco. 
During mid-November Fpitrix fuscata Jac.-Duv. was the worst pest- of. potatoes. 
It was also damaging newly set tobacco plants, wheat, rice, and tomatoes. 
P 
Faula brunneipennis Btsr was found on avocado ana peach on May 27. 
G-eraeus lentiginosus Bohi 5 was damaging the tender shoots on isolated peach 
trees November 10. 
The scarabaeid Gymne t i s liturata Oliv.^eats the calluses at the union of the 
stock and cion in avocado grafts. It has also been collected from ylang-ylang, 
aople, and Acnistus arborescens . 
4 
Homotelus jansoni Or. eats the leaves of orange, apple, avocado, citron, 
and mango; It is rarely numerous enough to be important. 
During mid-November Homophoeta aequinoctialis Linn, was so numerous on the 
vines of chiberre that it rose in swarms when the vines were disturbed. It 
attacks a variety of plants including apple, cherimoya, orange, peach, pear, plum, 
coffee, kunq" 1 tat , and c ro t on « 
- Lechriops auritus Boh as collected on balsa leaves September 12 at Paso 
Ancho de San Sebastian. An unidentified species of this genus has been collected 
on ylang-ylang and terciopelo (an ornamental vine) at San Pedro de Montes de Oca. 
p 
Macrodactylu s lineatus Che v. was destroying orange blossoms in Heredia on 
June 3, 1931. There were thousands of the beetles in each tree and they practical 
ly destroyed all of the blossoms. 
Monocrepidius sexpustulatu s Champ, is usually found between the leaves of 
avocado which have been webbed together by caterpillars. 
Nodonota irazuensis Jac.-^is very destructive to the flowers of roses; it is 
also found on pecan, cucumber, plum, rice, and coffee. 
(1) Det. H. S. Barber. (2) Det. 3. A. -Chapin. (3) Det. L. L. Buchanan. 
(4) Det. W. S. Fisher. .'■■ 
