oe ee 
51 
so far inland, and suggested that there might be some salt deposits or salt 
springs in the vicinity, creating conditions approximating those of the 
seacoast. ‘This is entirely possible, as those familiar with the history and 
geology of southern Illinois are well aware. There is certainly much 
salt under the surface, from Murphysboro east to the Ohio River, as wit- 
nessed by the salt springs, salt wells, and old salt works which were at 
one time of commercial importance, and it is possible that the waste water 
from the mines is a factor in the production of salt-marsh conditions at 
Herrin. The last of the three species has been taken before in the Mis- 
sissippi Valley. It is a new species, and is to be called Culex degustator 
by Dr. Dyar. 
Species oF MosQuirors REARED FROM IMMATURE STAGES,* Herrin, 1920 
Breeding place and month collected.; 
Species. ae é Son 
Apr. | May | June | July | Aug. | Sept. Oct. 
| | | 
TILES: OULLULOTUSELATYIS |. erate vilaete wale cee cde sees 4,5 | 4,7 | 5,6 
| | 
| 
Boumcrpennis: (Say) Say §  |cvwccleseees Wee Aesel( | aie As Vial oratere roa 5,8 
DELICE OUDSIMVULLC pune e a St NT lp ee etal tier nave ellie bras ol fer 0 li ane 3 
Culiseta inornata (Williston) Dyar)......|.....- Waesyarytelbreis. «(cs |rateca che eicreas iG 
Culex apicalis Adams (sazatilis | 
“SP TMUsIgL D2 Teg at Sale USGI aise ies | eeriney henoais Boegrd Miser Hind Belli aoe ot i 
Culex territans Walker (restuans |.....| 5 seeees | Deere se 
Theob. ) | | | | 
BATSON sit ot Select |Sciee's Hee STR ee ss 8 5,8 1,6 
C. salinarius Coquillett ese tes Pee ut eett hos: eects anle eres }1,3,5)1, 7,8 
EoMOUsidtor Dyats SPiN. «99° 9 1 lessee eae nue 6 4 3, 4,7 
Aédes canadensis (Theob.), D. & K. 4 ) 
A, sollicitans (Walker) D.& K. |... | 4,5 | | | 
* The last species listed in this table was not reared, but taken as an adult. AIL 
the others were reared; not taken in the adult stage. 
+ Breeding places numbered 1 to 8 are described below, and 1 to 7 are indicated 
on the map, p. 24. 
Description of Breeding Places referred to in the Table by Number 
1. Open drain, with small feeders, running through town of Herrin. 
2. Sink-holes, or hollows, filled with water. 
3. Mine pond (Sunnyside Mine) from which water for boilers and washers 
is drawn. 
. Series of woodland pools in low-lying lands. 
Large woods-swamp. 
. Mine ponds (C. W. & F. Mining Co. Mine A). 
Mine ponds (Big Muddy Coal Co. Mine 7). 
. Domestic breeding-places in Herrin: tin cans, wells, cisterns, ete. 
Was TS 
