be Fast 
1914] Melon Fly, Dacus cucurbitae. 183 
The old stems of the pumpkin vines are often infested with 
the larva of a Cerambycid (Apomecyna pertigera) which is 
able to penetrate through the hard nodes. More often, how- 
ever, this beetle larva was found in the roots of the pumkin plant 
- (Text fig. 3.) 

Text Fig. 3. Root of a pumpkin vine split open lengthwise showing the larva of a 
Cerambycid (Apomecyna pertigera) which feeds on the tissue of the 
roots and occasionally of the stems. 
6. Injury to petioles—Melon fly larve, which had recently 
hatched, were found within the petioles of leaves, but nearly, 
full-grown maggots were never observed within this part of the 
plant. In order to ascertain whether the pest could complete 
its larval period within a petiole, ten maggots of different sizes 
were placed within a half dozen leaf-stalks. All of the larvee 
obtained sufficient nourishment from the wall of the petioles 
to complete their development. While most of the maggots 
bored out of the petioles to pupate, others pupated within the 
leaf-stalks close to the node of the stem. 
7. Injury to flowers.—The larve that hatch from the eggs 
deposited in the anthers, first feed upon and destroy these 
structures (plate XXIX, fig. 28); then they may eat out the 
