132 ENTOMOLOGICAL NEWS. [Mar., '15 



was half reversed, on its side, the insect was crawling up and 

 around the side. When the reversal was complete, it was 

 crawling toward the mouth of the jar and could easily have 

 escaped. Obviously, its movements were geotactic. They 

 were repeated as often as the jar was reversed. The side of 

 the jar traversed was that turned toward the window. 



This insect is often found on windows facing the light and 

 then is always at the top of the pane, either resting there or 

 else crawling upward as far as possible, falling down and 

 repeating the same operation time after time. This is not only 

 true for this species but for most of the species of its family, 

 all or most of the Mymaridae and a very large number of other 

 Chalcidoidea, Proctotrypoidea, Vespoidea, Apoidea and other 

 Hymenoptera under similar conditions. A certain amount of 

 positive phototaxis was also present^ a turning toward greater 

 brightness. 



Diastrophus nebulosus (Hym.). 



Galls of this species obtained at Annapolis, Maryland, March 17, 

 1901, were full of larvae; on April 8, the latter had pupated and emer- 

 gence occurred late in April. Besides the cynipids Ormyrus lohatus 

 Walker and a species of Torymus were reared, the identifications by 

 Ashmead. 



Trypeta solidaginis Fitch (Dip.). 



A gall of this species taken from Solidago at Annapolis, Maryland, 

 March 31, 1901, gave the adult on May the 9th following. The 

 puparium is yellow, lighter between segments, that is the body is 

 marked with alternating dark and lighter cross stripes. The gall 

 measured over an inch. The adult was authoritatively identified by 

 Coquillett. 



Catolaccus Reared from a Gall (Hym.). 



A species of Catolaccus was reared in May, 1901, from some cynipid 

 gall on an unknown briar growing in a marsh at Annapolis, Maryland, 



Cecidomyia farinosa Osten-Sacken in Maryland (Dip.), 



About April 29, 1901, at Annapolis, I cut a twig containing a small 

 yellow larva from a blackberry bush; the twig was swollen into an 

 oval gall. The larva was taken out of the gall and placed into a watch 

 glass, where it pupated on May 6 following; the pupa was yellow, 

 turning to orange after several days and then to black when nearing 

 ecdysis; the latter occurred on May 17 or after eleven days. Later, 

 the galls were found to be common and usually to contain from three 

 to four larvae. The species was identified by William H. Ashmead. 



