34 John June Davis 



do not agree with the winged viviparous females collected by 

 Williams on hollyhock. There are no wingless viviparous 

 females from hollyhock in the collections of Williams so that an 

 exact comparison cannot be made. I think, however, that there 

 is little doubt but that Williams has confused two species. 

 Whether or not one of these is M. pelargonii Kaltenbach we 

 cannot say, not having European specimens for comparison. 



Camera lucida drawings of the head, antenna, cornicle and 

 style of winged viviparous female ; and antennal segment III, and 

 hind tibia of wingless oviparous female (drawn from specimens 

 on slide No. 148) are given on Plate VI, figs. 104 to 108. 



110. M. destructor (Johnson) {Siph. pisi Kaltenbach). 



" Siphonophora pisi Kalt. No. 152. On Clover in greenhouse, 

 Lincoln, Dec. 30, 1890." 



Winged and wingless individuals on this slide. As shown by 

 Miss Patch, it will be more proper to retain Johnson's species as 

 distinct from the European pisi until the positive identity of the 

 two is established. 



111. M. rubi (Kaltenbach) {Siph. rubi Kaltenbach). 



Specimens were deposited only in the collection of the U. S. 

 National Museum and I have had no opportunity of examining 

 them. 



112. M. rudbeckiae (Fitch) {Siph. rudbeckiae Fitch). 



113. M. solidaginis (Fabricius) {Siph. solidaginis Fabricius). 



" Siphonophora solidaginis Fabr. No. 154. On Solidago, 

 Ashland, Oct. 10, 1890." 



There are two winged and several pupae on this slide. Another 

 slide examined, which bears the same data as the first but is 

 numbered " 155," contains two winged, one wingless female, and 

 several pupae. The wingless female is in poor condition. All of 

 the winged individuals are apparently males. 



Winged male: Antennal segment III bears 44 to 56 rather small but 

 distinct, irregularly placed, circular sensoria; IV with 13 to 20 circular 

 sensoria, sometimes more or less in a row but usually irregularly placed; 

 V with 15 to 18 circular sensoria somewhat irregularly placed; end of VI 

 base with a single sensorium surrounded by several smaller ones; average 



286 



