218 THE ENTOMOLOGIST. 



Like so many of the Cecidomyidce, it is very lively in its move- 

 ments. 



March 29th. — Sent to Dr. Meade specimens of a miner of the 

 Tartarian honeysuckle that came forth this clay from its pupa in 

 the mine, where it had remained inactive since July, 1881. Dr. 

 Meade says, in a letter dated March 31st, " The little miner of 

 the honeysuckle leaves appears to be an example (female) of 

 the Agromyza geniculata, Fallen. Nothing is recorded of its 

 life-history, and it is said to be rare." 



March 30th. — A little Cecidomyia emerged from deflected 

 rosettes of the true Salix repens. The rosettes or leaf-tufts are 

 very small, but beautifully symmetrical. I can hardly consider 

 it as identical with our old friend C. rosaria, though quite aware 

 that it is aj)t to be modified by circumstances so far as size and 

 contour. Another insect-problem that has yet to be satisfactorily 

 solved ! 



April 25th. — The first gall-gnat, the true C. rosaria, emerged 

 from the vertical leaf-rosettes of Salix caprcea, upwards of a 

 month later than the reputed C. rosaria that came forth from the 

 deflected rosettes on the same species of willow. 



May 4th. — Cecids emerging from the vertical (all) rosettes of 

 Salix alba. Modification of the long narrow leaves of this 

 species to the exigencies of the tenants. Eeputed identity 

 between the two imagines. 



May 13tli. — Bar-winged fly {Trypeta cylindrica, Desvoidy) 

 bred from the seed-heads of Centaurea nigra. Feeds, according 

 to Loew, on the seeds or receptacle of various Composites on the 

 Continent. Pupa lies loose and exposed among the fluff, short 

 and tufted, of the seeds. 



May 31st. — Another gall-gnat {Cecidomyia salicis) coming 

 from the woody branch-galls of Salix cinerea. The terminal and 

 lateral branches are both galled, the gall appropriating the sap 

 that should have supported the shoots, which frequently perish 

 in their efforts to subsist. Dr. Meade remarks, in a letter to me, 

 " This species is very similar to C. rosaria, but has a little tuft 

 of white hairs over the mouth." 



June 3rd. — Both Cardaruines {pratensis and amara) giving 

 evidence of their flowers serving as food to the larvae of Ceci- 

 domyia cardaminis. Flqwers distorted by the larvae. Styles, 

 stamens, sepals, petals, capsule, all showing the effects of their 



