OF WASHINGTON, VOLUME XV, 1913. 59 



Aenaria lewisi Scott does much damage to rice in Japan by pierc- 

 ing the heads. The insect is single brooded, the adults hibernating 

 under trash in field and woodlands. Cuspicora simplex Walker 

 the brown potato bug, and C. virescens Try on, are potato pests in 

 the Illawarra and Toowoomba districts of Australia. 



Coreidce. 



In this family are several important species, though but few are 

 seriously destructive. One spec ; es, the rice or paddy bug, Lep- 

 tocorisa varicornis Fabr., is a serious pest to rice, ranging over 

 Japan, China, India, Ceylon, Philippine Islands, etc. 



Mictis prof ana, the crusader bug, is abundant in citrous orchards 

 in Victoria and punctures the shoots, blighting the twigs, often 

 causing the crop to fall. 



Lygmdce. 



Nysius vinitor Bergroth, the Ruthergren bug of Australia, punc- 

 tures fruits, as grapes, peaches, and the like, causing them to rot,, 

 and is considered one of the most destructive plant bugs on that 

 continent, swarming over fruit and foliage in countless millions. 



Oncopeltus quadriguttatus, the cotton bug, is common on cotton 

 in the Richmond River section and ranges from Sydney to Queens- 

 land. Oxycaroenus Icetus Kirby is a cotton pest in many parts 

 of India. Only twelve days are required from egg to adult. 



Pyrrhocoridce. 



This family is of interest principally on account of several mem- 

 bers of the genus Dysdercus, which contains species quite injurious 

 to cotton in various parts of the world. There are some four or 

 five Nearctic species and a single one from the Paleartic region, 

 D. crucifer Stal occurring in Japan, the Philippines, etc. Some 

 twenty species occur in the West Indies and South and Central 

 America. 



Dysdercus sides infests cotton in New South Wales, staining the 

 cotton fleece with its excrement, in common with the other forms of 

 the genus, which seem always to infest cotton when grown within 

 their range of distribution. D. cingulatus Fabr. is abundant on 

 cotton in India, while D. fasciatus Sign, is the cotton stainer bug 

 of South Africa, occurring also in Portuguese East Africa. Another 

 species, D. superstitiosus frequents cotton on the Cape. D. insu- 

 laris and D. pacifica occur on cotton in Fiji, but have not as yet 

 caused much trouble. Certain species are pests to the south of us, 

 i.e., D. ruficollis L., in Peru; D. howardi Ballou, considered quite 

 important in Trinidad and Tobago; and D. andrece L. in Cuba. 

 D. delauneyi Leth. is common in the Southern Islands. The harle- 



