INSECTS INJURIOUS TO CUCUMBER, MELON, ETC. l6l 



side, and devour all parts except the veins and late in the 

 season sometimes eat the rind of the fruit. The beetle hiber- 

 nates under convenient shelter and appears abroad in May or 

 June according to season and locality. A single generation 

 has been observed. 



Remedies. — Remedial measures adopted for other cucurbit 

 pests will effect the destruction of this ladybird. Its habit of 

 feeding exposed on the leaves renders it vulnerable to poison- 

 ous applications, and of these the arsenites, dry or in solution, 

 arc best. Hand-picking the beetles and egg masses is the only 

 measure necessarv under usual circumstances. 



Fig. 107.— Work of squash ladybird on a squash leaf Natural size 

 (Author's illustration, U S Dept. Agr.) 



The Squash Bug (Anasa tristis DeG.).— Of all insects which 

 infest squash and pumpkin the squash bug is the best known. 

 It is also called "stink-bug" from its disagreeable odor, and 

 black or gray squash bug to distinguish it from the so-called 

 "striped bug." In some seasons as, for example, in 1901 and 

 igo2, it even vies with the latter in point of destructiveness. 



The adult bug, shown twice natural size in figure 108, a, is 

 nearly three- fourths of an inch long, dirty blackish brown above 

 and mottled yellowish beneath. It is more or less harmful 

 during its entire active existence, from the time it leaves the 

 egg till its demise. When numbers attack a plant together it 



