320 THE CANADIAN ENTOMOLOGIST. 



situated in slight brown shade; t. a. hne broad, brown, angled twice in- 

 wardly, almost straight across wing ; t. p. line brown, slightly dentate in 

 upper portion, strongly outcurved just below costa, incurved somewhat 

 opposite reniform, strongly incurved below same to inner margin, where a 

 slight outward angle is formed ; orbicular represented by a brown dot ; 

 reniform by two brown dots, situated at either extremity, placed vertically 

 to each other ; from just beyond orbicular to t. p. line the median area is 

 largely suffused with light brown ; beyond the t. p. line is a narrow band 

 of white, the remainder of the subterminal area washed with brown ; sub- 

 terminal line represented by a white, irregular, dentate band, beyond which 

 the brown shading again obtains; fringes white, tinged with brown at 

 extremities. Secondaries white. 



Beneath primaries smoky-brown, whitish along inner margin; second- 

 aries white, tinged with brown along costal margin and with traces of a 

 brown postmedial line. Expanse, 28 mm.; 2 c^ s, 2 9 s; Redington, Ariz.; 

 Babaquivera Mts., Ariz. Types, Coll. Barnes. 



The three brown dots representing respectively orbicular and reni- 

 form are quite characteristic. The (^ specimens are in very poor shape, 

 but the $ is well preserved; the description has been drawn from the 

 latter. 



PREDACEOUS BUGS. , 



A very remarkable occurrence of predaceous bugs has taken place in 



Southwestern Ontario during the last few weeks. Correspondents in the 



counties of Dufferin, Norfolk, Oxford and Middlesex have sent in specimens 



oi Perilliis bioculatus Fabr., and of its variety, claudus Say. The latter 



form was described and figured in the Second Annual Report of the 



Entomological Society of Ontario, published in 187 i, under the name of 



Perillus circumcincius. These bugs, both in the imago and nymphal 



forms, are destroying the Colorado Potato Beetles, both eggs, larvje and 

 mature beetles, to such an extent that in some fields it is reported tliat 

 hardly any of the beetles are to be found, though the plants have not been 

 sprayed. They are quite abundant also at the College in Guelph and 

 other parts of the County of Wellington. The specimens have been kindly 

 identified by Mr. E. P. Van Duzee, of Buffalo, N. Y. He expresses sur- 

 prise at the species being found in this part of Ontario, as he considers it 

 a southern form, and is rarely known to be found as far north as the State 

 of Illinois. It is to be hoped that the insect may continue prevalent and 

 keep the Colorado Potato Beetle in control. — [C. J. S. Bethune. 



Erratum. — P. 286, line 7, for '■'•poliachroa'' read ''poliochroa." 



