23 
Type locality, Dubois, Ill., Aug. 9, 10, 1917 (Malloch). Paratypes: 
Ashley, Ill., Aug. 7, 1917, White Heath, Ill, Aug. 8, 1915 (Malloch) ; 
Falls Church, Va., July 8, 9, Aug. 7-9, Sept. 29 (Banks). 
This may be relativa Viereck, but it is not possible to decide without 
comparison of the types. 
TIPHIA ROBERTSONI, sp. n. 
Female——Larger than affinis, resembling in most respects punctata, 
from which it differs in having the lower half of sides of metathorax 
very distinctly shagreened or cross-striated. The basai dorsal abdominal 
segment has a poorly defined post-marginal depression in which there are 
1-3 series of deep punctures; the anterior declivitous portion of this 
segment is doubly punctate on a large portion of center of disc; and the 
pygidium is smooth on apical impunctate space, which is smaller than in 
punctata. For other characters see key. 
Length, 10.5-11.5 mm. 
Type locality, Carlinville, Ill., August (C. Robertson). Paratypes: 
Urbana, Ill., July 23, 1891, Sept. 9, 1892, and Aug. 30, 1914; Muncie, 
Mil, Sept. 7, 1912; Alto Pass, Ill, Aug. 12, 1891; and Falls Church, Va., 
Sept. 6 and 10 (Banks). 
TIPITIA WINNEMANAE, sp. Nn. 
Male.—Very closely related to punctata, but readily separated from 
it by the characters mentioned in the accompanying key. The tegulae in 
punctata usually have on the posterior margin a distinct incised line, but 
very rarely if ever in typical specimens is it carried forward along the 
outer margin. In those cases where such line occurs the much coarser 
and closer punctuation of the mesopleura should serve to separate the 
species. 
Length, 7.5 mm. 
Type locality, Plummers Island, Md., July 24 (N. Banks). 
TIPHIA RETICULATA, sp. n. 
Female.—Closely related to punctata, separable by the very distinctly 
shagreened ventral surface of thorax, even the posterior flap-like exten- 
sion of the mesothorax being so distinctly reticulated as to appear almost 
subopaque. The clypeus is flat, rather broad and low, with a broad im- 
punctate margin anda rounded central emargination. The pygidium is 
distinctly but not coarsely shagreened. Tarsal groove long and deep. 
Length, 8.5 mm. 
Type locality, Falls Church, Va., Sept. 29 (N. Banks). 
‘TIPHIA FLORIDANA Robertson 
I have examined the type series of this species. I can not distinguish 
very striking differences between this species and waldeni Viereck, and 
