Fluke—Syrphidae of Wisconsin. 
245 
Female: Length 10:5 mm. Antennae yellowish, 
slightly obscure above, face covered with yellow pollen 
and pile, no median stripe, pile absent on median ridge; 
slightly concave below antennae and then convex to oral 
margin which is slightly produced, lower part of face 
shining black; front black with greyish pollen below, pile 
black. Four broad silvery pollinose stripes on the thorax 
expanding so as to meet before reaching the scutellum, the 
lateral intermediate black stripes narrower than the me¬ 
dian ones. Scutellum yellow-translucent, pile yellowish 
or whitish. First segment of abdomen entirely silverly 
pollinose, second segment opaque black, shining poster¬ 
iorly, with a median, interrupted pollinose cross-band 
which expands laterally to reach the fore margin of the 
segment. Third and fourth segments mostly shining with 
whitish pollinose bands interrupted (only slightly on the 
fourth) and not reaching the side margins, fifth entirely 
white-pollinose. Fourth segment with a posterior reddish 
cross-band, third has posterior angles also reddish. Legs 
yellowish with the following dark markings: inner and 
outer sides of all femora with irregular spots, more pro¬ 
nounced on hind femora; inner side of hind tibiae; pos¬ 
terior tarsi and last two joints of middle tarsi. Wings 
hyaline. 
108. H. lunulatus Meigen. Numerous specimens of this interest¬ 
ing species taken in Jefferson and Dane Counties. Early 
spring only. Figures 78, 79. 
109. H. conostomus Will. Dane and Milwaukee Counties. A 
very common species in June and September. Figure 80. 
110. H. porous Walker. One specimen from Douglas County, 
July, 1909. 
Mallota Meigen 
Eyes pilose; more or less of the base of the abdomen with yellow 
• • •..... posticata 
Eyes bare; wholly black pilose. cimMciformis 
111. M. cimbiciformis Fallen. Manitowoc, Vilas, Milwaukee, 
Dane, and Washington Counties. May to July. 
112. M. posticata Fabr. Specimens from Dane, Milwaukee, Vilas, 
and Washington Counties. 
Triodonta Williston 
113. T. curvipes Loew. Three specimens in the Milwaukee Public 
Museum taken in Milwaukee County. 
