\'ol. XXvi] ENTOMOLOGICAL NEWS. jyc 
A new Nearctic Gonomyia (Tipulidae, Diptera). 
By Charles P. Alexander, Ithaca, N. Y.* 
The crane-fly herein described as new appears to be rather 
widely distributed in northeastern North America, but has 
been confused with previously described forms. 
Gonomyia (Gonomyia) mathesoni sp. n. 
Color light brown, the thorax rather indistinctly striped; femora 
without brown bands ; wings nearly hyaline ; Sc long, extending far 
beyond the origin of Rs; cell ist M2 open by the atrophy of the outer 
deflection of vein il/3 ; basal deflection of Cm far before the fork of 
M. 
Male. — Length, 5-5.2 mm.; wing, 6-6.1 mm. Female. — Length, 6.6-6.8 
mm.; wing, 6.3-7 ™m- 
Rostrum and palpi dark brownish black. Antennae rather short, 
the three basal segments light yellow, the remaining segments brown- 
ish. Front white, the vertex more yellowish, the region adjoining the 
eyes behind more brownish. 
Pronotum pale, whitish. Mesonotal praescutum light yellowish 
brown with indistinct darker brown stripes behind, one on either side 
of the rather broad median area, these extending from the transverse 
suture to the proximal ends of the pseudosutural foveae; lateral mar- 
*Contribution from the Entomological Laboratory of Cornell Uni- 
versity. 
