180 



Meloid^s; 



Zonitis bilineata Say. Two-lined Blister-beetle. (PI. XLIV. fig. i.) 



This beetle was taken on the apical leaves of the common milk- 

 weed, Asclepias syriaca (Sta. I), Aug. 12 (No. 33). Blatchley 

 ('10, p. 1356) records it as from the flowers of the wild rose. 



Bpicauta Jidttata Fabr. Old-fashioned Potato Beetle or Striped 

 Blister-beetle. (PI. XLV, fig. 5.) 



Several specimens were taken by T. L. Hankinson at Station I 

 July 3, 191 1 (No. 7665). 



Bpicauta marginata Lee. Margined Blister-beetle. (PI. XLV, fig. 2.) 



This beetle was taken at Station I by T. L. Hankinson only — July 

 3, 191 1 (No. 7665) ; it was taken also from the leaves of the rosin- 

 weed, Silphium integrifolium, on the Loxa prairie (Sta. II) Aug. 13 

 (No. 48) ; from an open ravine in Bates woods (Sta. IV, h) Aug. 22 

 (No. 124) ; and in the lowland glade (Sta. IV, c) Aug. 22 (No. 143). 

 For accounts of the common Illinois species of blister-beetles see 

 Forbes and Hart ('00, pp. 487-490, and Forbes, '05, pp. 111-114). 



Bpicauta pennsylvanica DeG. Black Blister-beetle. 



This beetle was collected from flowers of goldenrod, Solidago 

 Sta. I, a), Aug. 12 (No. 26); on the Loxa prairie (Sta. II) from 

 flowers of the rosin-weed, Silphium integrifolium, Aug. 13 (No. 

 48) ; on flowers of Silphium terebinthinaceum (Sta. Ill a), Aug. 20 

 (No. 119) ; in the cleared margin of 3ates woods (near Sta. IV, a), 

 on flowers of Pycnanthemum pilosum Aug. 23 (No. 146) ; again on 

 goldenrod, Solidago (near Sta. I, a), Aug. 24 (No. 152) ; and from 

 the Loxa prairie on flowers of rattlesnake-master, Bryngium yucci- 

 folium, (Sta. II, a) Aug. 27 (No. 178). 



The larvse of this and some other species of blister-beetles prey 

 upon locusts' eggs. (Cf. Riley, First Rep. U. S. Ent. Comm., p. 293. 

 1878.) The beetle lays its own eggs in the vicinity of the locusts' 

 eggs. 



RHlPIPHOKIDiE 



Rhipiphorus dimidiatus Fabr. 



Five specimens of this mordellid-looking little beetle were taken 

 on flowers of the mountain mint Pycnanthemum flexuosum (Sta. 

 I, g) Aug. 8 (No. 6) ; and three specimens on flowers of the moun- 

 tain mints P. flexuosum and P. pilosum on the Loxa prairie (Sta. 

 II) Aug. 13 (No. 52). Blatchley ('10, p. 1366) reports it as from 

 the flowers of. P. linifolium Pursh. 



