ART. 13 MIEIDAE OF DIST. OF COLUMBIA KNIGHT AND McATEE H 



LOPIDEA INCURVA Knight 



Maryland near Pliimmer Island, June 22, 1921, nymphs and adults 

 on honey locust, Barber; Washington, D. C, July 12, 19, 1926, on 

 honey locust, Knight. 



LOPIDEA ROBINIAE Uhler 



Abundant on black locust {Rohhiia pseudacacia) ; adults have been 

 collected from June 7 to August 19, and nymphs from June 8 to 

 ffuly 29; occasionally taken on other plants, including scrub pine, 

 grape, yucca, and wild carrot; comes to light. P. I. 



LOPIDEA MEDIA Say 



Common May 12 to July 19; on alder {Alnus rugom) ; a specimen 

 was found sucking a carabid beetle {Harfalus). July 19, 1913, R. C. 

 Shannon. P. I. 



LOPIDEA SAYI Knight 



New Alexandria, Va., Plummer Island, Md.. July 1907, William 

 Palmer; Plummer Id., Md., June 15, 1902, Heidemann; June 29, 

 1913, R. C. Shannon; July 7, 21, 1907, A. K. Fisher; July 20, 1926, 

 on hornbeam {Ostrya virginicma.), Knight. 



LOPIDEA STAPHYLEAE Knight 



Collected on Plummer Island, Md., on numerous dates ranging 

 from June 15 to August 9 ; also at Scott's Run, Va., on August 2, 1914, 

 McAtee; and at Great Falls, Va., June 27, N. Banks. 



LOPIDEA REUTERI Knight 



Glencarlyn, Va., July 25, N. Banks. 



LOPIDEA CAESAR Reuter 



Glencarlyn, Va., July 1, 1906, D. H. demons. 



LOPIDEA INSTABILIS var. INSTABILIS Reuter 



Fairly common, June 23 to August 12; on goldenrod. V. P. I. 



LOPIDEA INSTABILIS var. MARGINALIS Reuter 



Glen Echo, Md.. July 20, Heidemann; Washington, D. C, June 

 30 to August 6, 1926, Knight. 



Genus MELANOTRICHUS Router 



MELANOTRICHUS FLAVOSPAKSUS Sahlbcrg 



Abundant on Chenopodium s})p; May 23 to September 29; comes 

 to light. V. P. I. 



MELANOTRICHUS CATULUS Van Duzec 



Washington, D. C, May 16, 1902, Heidemann. 



