90 



THE PLUM CURCULIO SCARE IN CALIFORNIA. 



EeceDt advices from one of our California agents, Mr. D. W. Coquil- 

 lett, show that the published statements in the California newspapers 

 of late date to the effect that the Plum Curculio has made its appear- 

 ance in Los Angeles County, are entirely unfounded. Fuller's Eose 

 Beetle (Aramigus fulleri) has been mistaken for Conotraclielus nenuphar. 

 The Rose Beetle has been found to be very destructive in that vicinity 

 to the leaves of Evergreen Oaks, Camelias, Palms (Wasliingtonia filli- 

 fera), Canna indica, and several other plants. 



LACHNUS LONGISTIGMA ON THE LINDEN IN WASHINGTON. 



The Linden Tree-louse, Laclinus longistigma Monell, described in 

 Thomas' Third Eeport on the Insects of Illinois, pp. 119 and 120, and 

 which bears a close resemblance to L. platanicola Riley, has so far been 

 recorded on the Linden in only one locality, Monell having observed it a 

 few miles west of St. Louis, as he states in his description of the insect. 

 This instance is noted by Packard in the Seventh Bulletin of the U. S. 

 Entomological Commission (p. 127), where it constitutes the sole men- 

 tion of the occurrence of this Lachnus. 



As a record for the Eastern United States, it may be mentioned that 

 the species is abundant this year (1889) in Washington on trees of the 

 European Linden, a number of which have been found infested in the 

 northwest part of the city. The first tree was examined on August 18, 

 when the insects were in abundance on the underside of the lower 

 limbs, and some winged specimens were found amongst them, while 

 the pavement beneath was stained with their exudations and held the 

 honey-dew in little puddles ; the same being observed under infested 

 trees noticed later. 



This species differs from L. platanicola in being larger, with the wings 

 more dusky and the stigma black. It is also interesting to note that 

 some experiments carried on by Mr. Pergande, of this Division, in trans- 

 ferring specimens of L. platanicola to Linden and L. longistigma to 

 Sycamore, resulted in both cases in the failure of the colonies. — T. T. 



