1 66 ECONOMIC ENTOMOLOGY 



Eggs- — One-fifteenth inch long, dirty white, curved and with two 

 prominent white incurving hooks at micropylar end; smooth and glossy. 

 Inserted in the bark or wood of hop poles, Aug.-Sept. Duration 9- 

 93-^ months. Hatch throughout June. 



Nymphs. — Five stages; duration about 30 days. Active. 



Enemies. — Apeteticus maculiventris , a Pentatomid; Reduviolus sub- 

 coleoptratus, a nabid; and a species of Tromhidnim. 



Pentatomid^ (Stink Bugs) 



Harlequin Cabbage Bug (Murgantia histrionica Hahn). — A native 

 of Mexico and Central America. Injurious in the Southern states 

 but its ravages do not extend much farther north than New 

 Jersey and Long Island. Also known as "calico bug" "fire bug," 

 and "terrapin bug." Attacks cabbage, radish and turnip. 



Adult. — A moderate sized red and black plant bug, the markings 

 running more or less transversely and alternating. In South active 

 throughout the year; in North hibernates as adult. 



Eggs- — ^Resemble "miniature white barrels bound with black hoops 

 and'with black spots set in for bung-holes." Usually laid in two rows, 

 fastened by one end to under surface of leaf. Hatch in 2-1 1 days. 



Nymphs. — Like adults in markings; antennae with 4 joints; 5 

 instars, first instar glossy yellow; duration 2-10 weeks but shorter in 

 the South. Probably 4 or 5 generations in the South and 2 or 3 in 

 the North. 



Control. — Trap-crop of kale, rape, mustard, radish or turnip; 

 clean farm practice; bounties for collections. 



Green Soldier Bug (Nezara hilaris Say). — (Consult Ohio Bull. 

 310.) In N. E. parts of U. S. and Canada; a general feeder, and a 

 serious pest of the peach industry in Ohio. 



Adult. — Oblong-oval; bright green, finely punctate; edges of head, 

 thorax and abdomen white-yellowish or rufous; % inch long. Hiber- 

 nates. 



Eggs. — ^Light yellow; oval; circular cap with a row of short spine- 

 like processes. Laid in clusters on leaves or fruits in June- July. Hatch 

 in 7 to 8 days. 



Nymph. — Five instars; mature in 50-75 days. Injures by punc- 

 turing the fruit. 



Parasites. — A Proctotrypid — Trissolous euschisti Ash. 



