II04 The American Naturalist. [December, 
Tibia slightly longer than patella, its inner lateral distal angle slightly 
prolonged, and its inner lateral surface provided with spines like those 
on the patella ; its dorsal and lateral surfaces also having smaller and 
sparser spines, and its ventral surface being provided with a few whitish 
conical tubercles tipped with black spines. Tarsus furnished with 
many rows of rather long, black, stiff hairs ; and having two very 
small black tubercles at the base of the well-developed claw. Ventrum 
light gray, hispid. Legs very short, robust, pinkish : coxae light gray 
with a slight pink tinge, provided with rather long stiff black hairs, on 
elevated whitish bases ; trochanters tuberculate, light gray with a pink 
tinge ; remaining joints pinkish, all except tarse having longitudinal 
rows of small black spines. 
The pink legs, prolonged patella, and light gray color at once dis- 
tinguish this species from O.pictus. Clarence M. Weed. 
EXPLANATION OF PLATE. 
Fig, I. OHgolophus ohioensis,r\. ^>. Female. Natural size. 
Fig. 2. Structural details of same magnified, a, Body; b, Eye 
eminence, side view ; c, Eye eminence, front view ; d, Palpus, side view ; 
e, Claw of palpus. 
Fig. 3. Oligolophus picius (Wood). Male. Structural details magni- 
fied, a, Body ; b, Eye eminence, side view ; c. Eye eminence, front 
view; d, Palpus, side view ; e. Claw of palpus;/, Claws of mandibles, 
side view ; g, Genital organ. 
Entomology in Illinois.— Two more volumes have lately been 
added to the valuable series of the Reports of the State Entomologists 
of Illinois. These are the Fifteenth and Sixteenth Reports, the first 
covering the years 1885 ^nd 1886, and the latter 1887 and 1888. The 
late appearance of these volumes is due to a series of mishaps to which 
publications dependent on State printers are always liable, but which in 
this case have been peculiarly unfortunate ; although Professor Forbes 
has gotten over the difficulty to a large extent, by the publication of 
the more important articles in bulletin form. These include the 
articles concerning arsenical poisons for the Codling Moth, and the 
life history of the Hessian fly of the Fifteenth Report, and the Studies 
on the Chinch Bug of the Sixteenth. Among the discussions now first 
published, the more important occur in the Sixteenth Report, and in- 
clude the following subjects : The Corn Bill Bugs ; The Meadow Mag- 
gots or Leather-Jackets; Notes on Cutworms; The Burrowing Web 
Worm ; and an elaborate Economic Bibliography of the Chinch Bug, 
embracing the years 1785 to 1888, and covering 122 printed pages. 
