2QO ENTOMOLOGICAL NEWS. [Oct., '06 



others, when the species was not the special object of my 

 search. May 14 is the date of my latest capture, but the speci- 

 mens at this time are very worn, for their period of flight is 

 short. They are found almost always in open spaces sur- 

 rounded by trees, where the sun shines hottest, skipping around 

 the bluets (Houstonia cacrulca), which often carpet the 

 ground in these places. They are very wary and most easily 

 lost sight of on account of their manner of flight and their 

 sombre color. To go after these insects on a cloudy day would 

 be quite useless, for they seem to prefer nooks where scarcely a 

 breeze blows, and disappear among the grass even while the 

 sun is obscured by a passing cloud. 



Macrosiphum granaria Buckton. 



BY C. E. SANBORN. 



Winged viviparous female. 



Head yellowish green; antennae; first and second segments also base 

 of third concolorous, remainder black. Length of segments, i, 0.13 

 mm.; 2, 0.08 mm.; 3, 0.56 mm.: 4, 0.48 mm.; 5, 0.39 mm.; 6, o. II mm.; 

 7, 0.67 mm. Total length 2.49 mm. The sixth segment extends to the 

 caudal end of the style. Sensoria circular, seven to ten on the third, 

 nearly in a straight row, none on the fourth, the usual distal one on 

 the fifth, and a group of seven or eight small ones at the distal end 

 of the sixth segment. Eyes dark red, occular tubercles prominent, 

 ocelli prominent. Beak, first segment concolorous, second and third 

 dark, 0.58 mm. long, extending to the meta-coxse. 



Prothorax yellowish green. Thoracic lobes dark, insertions yel- 

 lowish ; wings deflexed and normal, veins brownish, stigma smoky gray, 

 0.83 mm. long by 0.15 mm. broad. Total wing expansion 7.3 mm. 

 Femora yellowish green proximally, and dark distally. Tibia yellowish 

 green except distals, which are dark. Tarsi black. 



Abdomen glabrous, yellowish green. Honey tubes cylindrical, black, 

 strongly reticulated, 0.41 mm. long, extending a little caudad the base 

 of the style. Latter yellowish green, halbert shaped, with a few 

 setaceous hairs, 0.33 mm. long. 



This form was found colonizing the leaves and stalks of oats 

 June 3, 1904, at College Station, Texas. 



What is apparently the same species was sent from the 

 Naturhistorisches Museum zu Hamburg, by Dr. L. Rep, col- 

 lected February 10, 1904, on oats, at Boernsen, Germany. 



