724 Cecidomyiidae 



L. nassauensis Felt. Nassau, Jl. 



L. neofusca Felt. Albany, May 25. 



L. nodulosa Bt. Produces an irregular, subfusiform or elongate swelling on the 

 smaller branches of blackberry. The gall is reddish, usually of the same 

 color as the adjacent bark, about 2 cm. long, 1 cm. in diameter, and poly- 

 thalamous. Vic. Albany ; appears to be much more common in and about 

 NYC; SI (Ds). 



L. palustris Felt. W. Nyack, Ap 18, reared from a subglobular to elongate, ir- 

 regular, fusiform stem gall on an unknown plant. 



L. panici Felt. Albany, Je 27, taken as the female was evidently about to oviposit 

 on Panicum macrocarpon. 



L. riparia Felt. Westfield, Ap 27, reared from an oval or fusiform petiole or tendril 

 gall on Vitis bicolor. 



L. serotina Felt. Albany, May 23, on choke cherry. 



L. solidaginis O.S. Produces a rough, eccentric stem gall, length and diameter 

 about 2.5 cm., on Solidago rugosa. Albany, scarce ; vie. NYC, common. 



L. vernoniae Bt. NYC; SI. Reared from flower and leaf galls on ironwood. 

 The leaf gall is oval, about 5 mm. long, green tinged with red, and shows 

 on both surfaces of the leaf. 



L. viburni Felt. Albany, Je 10, on maple-leaved arrowwood. 



L. vitis O.S. Produces a reddish, irregular, frequently lobulated, succulent enlarge- 

 ment of the leaf stalk, parts of the leaf, or even the tendrils, of grape, the mass 

 ' being 2 or 3 inches long and polythalamous. Several species of midges have like- 

 wise been obtained from this gall. The insect is probably widely distributed 

 in NY, excepting possibly the Adirondack region. Kingston, Je; Manorville, 

 Jl; Suffern, Jl; Rensselaer, Je; Nassau, Jl; Port Jervis, Aug; NYC, Je 13; SI: 

 New Brighton, Je (larvae). 



Neolasioptera Felt 



N. albitarsis Felt. Nassau, reared May 18 and 21 from fusiform, irregular stem galls 

 1 cm. long and 6 cm. in diameter on Diplopappus cornifolius. 



N. albolineata Felt. Albany, Aug 5. 



N. ambrosiae Felt. Ithaca, Jan, reared by Cy from apparently normal stems of 

 the giant ragweed {Ambrosia trifida). 



N. asclepiae Felt. Albany, Je 20, reared from an elongate, fusiform stem gall on 

 the swamp milkweed (Asclepias incaniata) . 



N. basalis Felt. Albany, Aug 6, on hazel. 



N. celastri Felt. Albany, Jl 17, on bittersweet, 



N. cinerea Felt. Albany, Je 21. 



N. clematidis Felt. Newport, Jl 17, captured as the female was attempting to 

 oviposit in the stem of Clematis ; Hudson Falls, Sep, gall. 



N. cornicola Bt. Produces an irregular, nodular, polythalamous gall on the small 

 twigs, the larger branches, and the old stems of Cornus stolonifera. The gall 

 varies in length from 1 to 2 cm., and is usually on one side of the twig. 

 Hudson Falls, Mar, Nassau, abundant ; W. Nyack ; vie. NYC. Presumably 

 widely distributed in the State. The midges appear in early May. 



N. erigerontis Felt. Produces a fusiform stem gall on horse-weed {Erigeron 

 canadensis) . 



