REPORT OF THE STATE ENTOMOLOGIST 1907 ii, 
c Wings smoky, especially along the course of the veins, veins reddish 
brown, including the cross vein, end of knob of the halteres brown; 
(new name for caliginosus, which is preoccupied for fossil 
SSCS) 4s a eke eerste Oke aaeeGiae ae ae ithacanensis new name 
cc Wings hyaline, with brown cross vein 
d Forestarsi of the male bearded 
e Foremetatarsus not over 1% times the tibia in length 
f Abdominal segments black, posterior margins sometimes gray, 
not yellow 
g Foremetatarsus 1% times the tibia in length, abdominal seg- 
ments with faintly grayish margins...... niveipennis 
gg Foremetatarsus I 1/5 or more times the tibia in length 
h Legs black, fourth tarsal joint of foreleg about 34 the length 
of the third (legs fuscous; var. meridionalis).......... 
! hyperboreus 
hh Legs subfuscous, third and fourth tarsal joints subequal in 
Ler gitlateet sep es areata orators Sete rem en see cas a aeaent lWalereis 
ff Abdominal segments with yellowish posterior margins 
g Ground color of the thorax gray, stripes blackish, humeri 
yellowish, large species 9 to 12 mm in length..plumosus 
gg Ground color of the thorax more yellowish, smaller species 
78 tO ©) waowaoy ihn lherweadn oo occcoes ogo 0d 00 5c do bse DrAGCIMES 
ee Foremetatarsus over 1% times the tibia in length 
flaltenesuyie low ven-sas ese oe oe mics Sates ie ee maturus n. sp. 
ff Halteres dusky, third and fourth tarsal joints of the forelegs 
SUD SC Ola leita CT oiitater neta ees on ce cide ons cures ALETCMUATS 
dd Foretarsi of the male nct bearded 
e Male claspers unusually stout, foremetatarsus 1%4 times the tibia 
in length; abdominal segments gray, margined with yellow; 
Nefeasy SAS ONSIS) ate eas os rare ices ote keene meer mer 
ee Male claspers slender 
f Foremetatarsus about 1% times the tibia in length; black species, 
legs blackish, abdominal segments with cinereous margins... 
SLACHORI 
ff Foremetatarsus over 144 times the tibia in length 
g Thoracic stripes black divided by gray lines, humeri some- 
times yellow; abdominal segments black, posterior margins 
gray; foremetatarsus 114 times the tibia in length........ 
riparius 
gg Not as above in all particulars 
h Small species, 3 to 4 mm in length; foremetatarsus over 
1A (HIMES Une thou, iim learns c coocedco0cc90000 similis 
hh Species 5 mm or more in length 
i Middle and hind femora each with broad yellow band 
bCLORCM ADE Kenya etre Seer ene chalets cts compes Cog. ’08 
ti Legs not so marked 
7 With foremetatarsus about 1% times the tibia in length; 
OS vO S sma ihn eed ooosscccgoccd000e cristatus 
77 With foremetatarsus about 1.6 times the tibia in length; 
ements tities amr tapes tat yiars. 8a redeunsP 
