A NEW SPECIES OF TOXOPTERA. 



Described from eight livinj; specimens received from W. J. Phil- 

 lips collected on Muhlenhergia at La Fayette, Ind., September 9, 

 1909. Types mounted on four balsam slides, in the collection of the 

 Bureau of Entoniolo<^y, U. S. Department of Aj^iculture. 



WINGLESS VIVIPAROUS FEMALE. 



(Fig. 2.) 



Head and body entirely pale f^een, the head being slightly paler 

 than the thorax and abdomen. Eyes black. Antennal segments 

 I, II, and III very pale brownish, IV pale at base and gradually 

 changing to dark brown or blackish; total length slightly more than 

 half tliat of the body ; fdament of YI largest, it being about four times 

 tlie basal portion of YI; III three times the length of lY and three- 

 fourths filament YI; lY and Y subequal, A'^ being slightly the longer. 

 Beak reacliing the coxae of the 

 second pair of legs. Legs 

 pale excepting the tarsi and 

 distal ends of the tibiae, which 

 portions are blackish. Ab- 

 dominal tubercles as in the 

 winged form. Cornicles and 

 style pale, with a slight green- 

 ish tint, and not unlike those 

 of the winged female in form. 



Measurements (from speci- 

 mens mounted in balsam) : 

 Length of body, 1.1308 mm.; 

 width, 0.5198 mm. ; antenna, 

 1,0.0489 mm.;. II, 0.04 mm.; 

 Ill, 0.1548-0.2037 mm., aver- 

 age, 0.1825 mm.; lY, 0.0815-0.1141 mm., average, 0.0994 mm.; 

 Y, 0.1059-0.1141 mm., average, 0.1108 mm.; YI, base, 0.0652-0.0815 

 mm., average, 0.0684 mm.; YI, filament, 0.2119-0.2771 mm., aver- 

 age, 0.2477 mm.; average total, 0.7977 mm. ; cornicle, average, 0.1385 

 mm.; style, 0.1141 mm.; hind tarsus, 0.09 mm. 



Described from six living si)ecinaens collected at La Fayette, Ind., 

 September 9, 1909. Types mounted on four balsam slides, in the 

 collection of the Bureau of Entomology, U. S. Dejiartment of 

 Agriculture. 



WINGLESS MALE. 



(Fig. 3.) 



Head dusky green to blackish, i)rothorax ])ale green, thoracic plate 

 dark to blackish green, antl the abdomen ])ale greenish yellow. Eyes 

 black. Ocelli present as in the other forms. Antennjv blackish, ex- 

 cepting the two basal segments, which are jiale dusky; irregularly 

 placed circular sensoria as follows: 22-23 on III, 17-24 on lY, 11-17 



Fig. 2.— Tozoptcra muhlcnbcrgix: Wingless viviparous 

 female. Greatly enlarged. (Original.) 



