THE CANADIAN ENTOMOLOGIST 41 



he was chosen to the limited membership of the National Academy of Sciences, 

 and the Entomological Society of America made him an Honorary Fellow, one 

 of seven out of its membership of 600. 



''He was married in 1880 to Annie I. Hathaway, of New Haven, who sur- 

 vives him together with three daughters and a son." 



In his concluding paragra])h Prof. Aldrich says: '''More than any other 

 of my teachers, he became my itlcal of a scientific man; and if in later years my 

 ideal took on larger proportions, so he too seemed to expand in his nature powers; 

 and at the close of his life I still feel that a splendid and inspiring example of 

 scientific work and achievement is contained in his career." 



SOME NEW LACHNIDS OF THE GENUS LACHNIELLA. 



(Homoptera-Hemiptera.) 



by h. f. wilson, madison, wis. 



(Continued from page 22.) 



Lachniella nigra, n. sp. 



Descriptions made from specimens collected at Kilbourn, Wisconsin, 

 August 18, 1917, on Pinus sp. Very abundant and found in colonies on the 

 underside of the branches or on the trunk of young trees. General colour 

 shining or a metallic chocolate brown, not pruinose. Colour notes from live 

 specimens, other notes from alcoholic and balsam material. Types in the 

 writer's collection. 



Apterous viviparous female. — General colour metallic brown with the legs 

 and antenna? black. After being in the balsam for a few months the antennae 

 and front and middle pair of legs became lighter, especially the tibiae. Antennae 

 with the third segment being much stouter. Third segment approximately as 

 long as the fourth, fifth and sixth together, the sixth being slightly longer than 

 the fourth, and both less than the fifth. Third segment without sensoria, 

 fourth with two small ones, and the fifth with one small sensoria near the middle, 

 and a very large one at the distal end. Beak long, extending to the tip of the 

 body. Nectaries very large and with a straight sloping base, cauda angled 

 rather than rounded at the tip. Hairs abundant and of medium length. 



Measurements. — Length of body 2.5 mm. Length of antennal segments: 

 HI, 0.5 mm.; IV, 0.187 mm.; V, 0.27 mm.; VI, 0.21 mm. Total length 1.34 

 mm. Length of beak 2 mm. Length of hind tibiae 2.35 mm. 



Alate viviparous female. — General colour bronze brown with antennae and 

 legs black. Colour notes made from live specimens, other notes from balsam 

 mounts. After several months in balsam the antennae and legs become lighter 

 coloured. The antennae from the base of the third segment, gradually becoming 

 darker toward the tip, the last segment being dusky to black. The tibiae of 

 the first and second pair of legs excepting at the joints become quite clear, those 

 of the hind pair continue to be dusky black. Third antennal segment approxi- 

 mately as long as the fourth, fifth and sixth. As in the apterous forms the 

 antennae taper somewhat, the last tWo segments being thicker than the preceding; 

 from one to three sensoria are found on the distal end, except that occasionally 

 two sensoria may occur near the end, and one larger one about the centre of the 

 segment. • Fourth segment normally with one §ensorium, but two may occur. 



February 1919 



