No. 34-] HEMIPTERA OF CONNECTICUT: APHIDIDAE. 265 



bluntly angled and short. Abdomen covered with irregular black 

 spots, a hair arising from each one ; outside these are found other 

 hairs or bristles. The purpose of these spots has not been 

 determined, the entire body being set with numerous long and 

 spine-like hairs. 



The femora are brown in color and the spines which are not as 

 coarse as those on the tibiae stand more nearly upright. The tibial 

 spines are set in a reclinate position pointing toward the tarsi. 



Measurements: Length of body, 4.16mm. Antennal segments, 

 iii, 0.52 mm.; iv, 0.29 mm.; v, 0.31mm.; vi, 0.25 mm. Total 

 length, 1.52 mm. Length of rostrum, 1.5 mm. Hind tibiae, 

 2.39 mm. 



Alate viviparous female : Antennae dusky toward the tip, lighter 

 at the base of the fourth segment and only the distal one-quarter 

 of the third segment dusky. Legs with femora brown, tibiae 

 black. Beak black at the tip and extending slightly beyond the 

 third pair of coxae. Antennae medium slender and reaching to 

 the hind coxae. Segment four and five approximately equal. 

 Fifth segment about three-fifths as long as the third and much 

 longer than the fourth or sixth. Third segment with six or eight 

 round sensoria along the distal two-thirds. Fourth segment with 

 two or three sensoria on the distal half. Cornicles as in apterous 

 forms. Abdomen with numerous dusky spots each of which bears 

 a spine-like hair as in the apterous form. Additional spines occur 

 outside these areas. 



Entire body, legs and antennae with numerous hairs. 



Measurements : Length of body, 4.08 mm. Antennal segments, 

 iii, 0.56 mm. ; iv, 0.27 mm. ; v, 0.29 mm. ; vi, 0.25 mm. Total 

 length, 1.55 mm. Length of hind tibiae, 2.33 mm. 



Food plants : Pinus sp. 

 D. laricis (Walker). Lachnus laricis Walker. 



Ann. Mag. Nat. Hist., Ser. 2, ii, 102, 1848. 



Apterous viviparous female : General color dark brown to black, 

 with a covering of white pruinose and with a light streak down 

 the center of the dorsum. The antennae are dusky yellow at the 

 base and black toward the tip. The legs are black except the basal 

 portions of the femora and the middle of the tibiae which are 

 dusky yellow. Cauda black, after mounting in balsam numerous 

 brown spots may be seen on the abdomen. Antennae reaching to 

 the base of the middle coxae. Rostrum reaching to the hind 

 coxae. Third antennal segment nearly as long as the fourth, fifth 

 and sixth segments together. The third and fourth segments with 

 a single sensoria at the distal end and the fifth with two. Cornicles 

 large and volcano-shaped. The edge of the base more or less 

 broken. 



Measurements : Length of body, 4 mm. ; width, 2,2 mm. 

 Length of antennal segments, iii, 0.73 mm. ; iv, 0.27 mm. ; v, 



