REPORT OF THE STATE ENTOMOLOGIST I916 



[99 



segment narrowly margined posteriorly with silvery white, the 

 eighth segment and ovipositor fuscous yellowish; venter black with 

 a broad median white stripe. Legs dark brown, femora, tibiae and 

 the tarsal segments narrowly annulate with silvery, except the 

 third to the fifth posterior tarsal segments, which are broadly annu- 

 late basally, the second, third and fourth also narrowly annulate 

 distally; the pulvilli as long as the claws. Ovipositor probably 

 one-half the length of the body, the terminal lobes, short, broadly 

 oval. Cecid. ai36i. 



Neolasioptera erigerontis Felt 



1907 Felt, E. P. N. Y. State Mus. Bui. 110, p. 163 (Choristoneura) 



1907 Cook, M. T. Dav. Acad. Nat. Sci. Proc., separate, p. 10 (Lasioptera) 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 332 



1913 Beutenmueller, William. Can. Ent., 45:414 (L. podagrae) 



This species was reared in some numbers from 

 a fusiform gall on horseweed, Erigeron 

 canadensis. It is hardly the same as the 

 species described by Brodie 1 as Cecidomyia 

 eregeroni , since he clearly states that the 

 larvae forsake the galls, a habit we have never 

 observed in the Lasiopterariae. The larvae of 

 this insect winter in the gall, the adults appearing 

 the latter part of May. This species is pre- 

 sumably widely distributed, as it undoubtedly 

 occurs in Ontario, various portions of New York 

 State, and specimens were found in the collections 

 of the late C. V. Riley. Adults in the National 

 Museum were bred May i, 1895 from galls taken 

 at Washington, D. C, and July 8, 1893 from 

 material taken in Missouri. This species was also 

 reared by Mr Beutenmueller, the host being 

 erroneously identified as aster and the insect 

 described by him asL. podagrae. Polyg- 

 notus angulatus Ashm. , Torymus 

 ostensackenii D. T. and a Eurytoma 

 species were reared from this gall or that of the 

 associated Asteromyia modesta Felt. 



Gall. The gall produced by this insect is 

 simply a slight enlargement on the stem, a 

 rather evident fusiform enlargement near the base of the branches 



Fig. 37 Neolas- 

 i o ptera eri- 

 g e r o n t i s , two 

 infested stems, 

 raturalsize (orig- 

 inal) 



1 Brodie, William. Biological Review of Ontario, 

 and noticed, as Diplosis). 1894. 



1:13-15 (Gall described 



