xxxiii, '22] ENTOMOLOGICAL NEWS 243 



Amazon River Steam Navigation Co. for Manaos ; proceeding down the 

 Madeira River, many stops were made, at some of which (Humayta, 

 Manicore, Borha) a little collecting was done. On the Madeira below 

 I '.< irba and on the Amazon, which was entered on June 3, the "waters 

 overflowed banks, cacao groves, banana fields, etc. Native huts hall 

 submerged and cattle kept on rafts." 



One June 4 Manaos was reached. "Rio Negro is now [at] highest 

 stage ever recorded, being 2y 2 inches higher than in 1909, the former 

 high water mark. Back water appears in the streets in places and the 

 river is still rising." On June 21 Mr. Williamson wrote : "Rio Negro 

 stays at same high level. Frequent rains keep the swamps and creeks 

 in the hills well tilled much better collecting than when rains cease 

 and they go down a foot or two." During this month collecting was 

 done at Manaos itself and between the city and Flores, to which a 

 street car runs. "Real original growth forest was seen for first time 

 to-day [June 18]. Near the road except where under present culti- 

 vation was the usual second growth, so common around Manaos, but 

 beyond this, the original forest began in lines plainly marked where 

 clearing had ceased. [This was about 7 miles beyond Flores.] In the 

 bottom or swamp lands between the hills there probably has been little 

 or no clearing and no big trees ever grew." On June 17 the total catch 

 of dragonflies was estimated at 7697 specimens and 157 species. 



In the beginning of July a "friage" or cold wave, temperature 74" 

 F., was experienced, lasting seven days. On July 2, taking steamship, 

 the expedition proceeded from Manaos up the Rio Negro, which is split 

 into many channels and full of long, wooded islands, the latter, like 

 the river banks, being completely flooded, only the tops of trees visible. 

 On July 6 Santa Isabel was reached without having seen any favorable 

 collecting grounds on the way. At this place, 423 miles from Manaos, 

 indications of a different Odonate fauna were obtained. The return 

 to Manaos began July 8 and on July 11 "many teneral Diasialops and 

 four other species of teneral Libellulines were caught by ourselves and 

 fellow passengers," while "large numbers of Tholymis came out from 

 hore at sunset, but only caught two as they flew over the boat." 

 Manaos was reached near midnight July 12. 



"It is indeed fortunate that we made Porto Velho our chief objective 

 on the trip instead of any of the so-called towns along the Negro. There 

 is nothing worthy the name of village above Manaos. Xo place have 

 we seen collecting ground for one real day's work, let alone a monthly 

 stop which would be necessary here. Haven't seen a creek all the way 

 up; there may be -<>nie but the flooded country lias them well con- 

 cealed. I imagine one would have to travel several hundred miles above 

 Santa Isabel by launrli and caiun- before reaching .^ond collecting s| 

 and tV MI }} would prartieally have to camp out to work them" ( Julv 

 11, 1922). 



From July 13 to 22 some further collecting was done in the vicinity 



