No. 34.] HEMIPTERA OF CONNECTICUT: APHIDIDAE. 267 



sixth antennal segment long and finger-like. Third antennal seg- 

 ment with ten to twelve irregular round sensoria ; the fourth with 

 two or three and the fifth with two. Rostrum reaching to the 

 cornicles with broad sloping -sides. Cauda broadly angular. 

 Antennae, body and legs with long drooping hairs. 



Measurements : Length of body, 3 mm. Length of antennal 

 segments, iii, 0.45 mm.; iv, 0.17 mm.; v, 0.22 mm.; vi, .18 mm. 

 Total length, 1.36 mm. Rostrum, iii, 0.21mm.; iv, 0.187 mm.; 

 v, 0.063 mm. Total length, 1.97 mm. Length of hind tibia, 

 2.70 mm.; hind tarsus, 0.1 and 0.27 mm. 



Food plant : Pinus strobus. 



Springdale, 5 Sept., 1903 ; Waterbury, 1 April 1904, eggs ; West Goshen, 

 15 Oct., 1909 (S. N. Spring) ; New Haven, 10 Nov., 1910; Middletown, 22 

 June, 1911; Portland, 5 June, 1914; Hartford, 23 July, 1915 (M. P. Z.). 



D. pinivora (Wilson). Lachniella pinivora Wilson. 



Can. Ent, li, 44, 1919. 



Alate viviparous female : Antennae light-colored at the base of 

 the third, fourth and fifth antennal segments, distal portion of 

 these segments and the sixth dusky. First and second pairs of 

 legs yellowish at the base of the femora and along the middle of 

 the tibiae. Other parts and tarsi deep dusky brown. Hind 

 femora yellow at the base and dark brown at the joint, hind tibiae 

 with yellow area clear and covering about one-third of the segment. 

 Cornicles large and volcano-shaped. Cauda and anal plate both 

 broadly rounded. Third antennal segment with seven medium- 

 sized sensoria widely set apart, fourth with one or two and fifth 

 with two. Third segment shorter than the last three together, five 

 distinctly longer than four, and six four-fifths as long as four. 

 Beak short, extending to the farther edge of the middle coxae. 

 Hairs long and drooping but not so much as in L. strobi. 



Measurements : Length of body, 2.9 mm. Length of antennal 

 segments, iii, 0.55 mm. ; iv, 0.22 mm. ; v, 0.24 mm. ; vi, 0.164 mm. 

 Rostrum, iii, 0.172 mm. ; iv, 0.15 mm. ; vi, 0.63 mm. Total length, 

 1.25 mm. Length of hind tibia, 2.29 mm. Hind tarsus, 0.27 mm. 



Food plant : Pinus spp. 

 D. curvipes (Patch). Lachnus curvipes Patch. 



Me. Agr. Expt. Sta., Bull. 202, 161, 1912. 



Apterous viviparous female : Antennae long and slender. Third 

 segment approximately equal in length to the fourth, fifth and 

 sixth. Fourth segment shorter than the fifth and longer than the 

 sixth. Third segment with one or two sensoria near the distal 

 end. The fourth with a single small one at the distal end and the 

 fifth with one small and one large one. Tarsi and tip of tibiae 

 black. Hind tibiae deep dusky black except at the base and very 

 strongly curved. Rostrum slender and reaching to the base of the 

 cornicles. Cornicles with a wide cone-shaped base. Cauda 

 bluntly pointed. Antennae, legs, and body with short, more or 

 less drooping hairs. 



