76 



following is by IMacquiirt, in Annales Soc. Entomol, France, 

 p. 294: 1845: Siphona cinerea^ Mcigen, System. Bescli. Enr. 

 ^^- . Zweif. Ins., Vol. IV, p. 150; 1824. The following is by llondiini 



/"^""T*^^^ in Dipt. Italicje Prod., Vol. Ill, p. 1<>, 1859, and is repeated by 

 I y^ ' Scliiner: Si2}h(manig)07riftatai\udfinaUsMeigen,8ysitem.Be&('.\i. 



^^^^i.'CUi^ UJa^^^wv. Zweif. Insekten, Vol. IV, p. 157; 1824. Syphona perHilla 

 \ Desvoidy, Essai snr les Myod., p. 92; 1830. Sjjphona iris- 



tis Desvoidy, Annales Soc. Entomol. France, p. 203; 1850. 

 Syphona fusclcorniH and eonsimiUs Desvoidy, loc. cit., p. 205. 

 The following is by the writer: Siph(ma illinoicnsisTo\v\\f^end, 

 Trans. Amer. Ent. Soc, Vol. XVIII, p. 308; December, 1891. 

 Sipho)ta s])., Brauer and Bergenstamm in litt.). .fjenicniata DeG. 

 2. Abdomen opaque gray pollinose, black, the sides of the first two 

 ^'^j^^^,^^^^ segments sometimes partly or wholly yellow, terminal joint of 



^/^-v the proboscis at least two-tliirds as long as height of head; 



^ length, 3 to 4.5 mm. From the type specimen. Southern Cali- 



fornia. (Canadian Entomologist, Vol. XXVII, p.l25; May, 1895. 



^Siphona sp., Brauer and Bei'genstamm hi lift.) jilnskc Coq. 



Abdomen shining, destitute of pollen, yellow, a dorsal vitta and 

 hind margins of last three segments black; insect elsewhere 

 black, the face, paljti, apex of scutellum, coxa-, lemora and tibia' 

 yeHow, apices ot femora brown, frontal vitta brownish yellow, 

 antennjp and proboscis yellowish brown, the base and- apex of 

 the latter more yellow; terminal joint of proboscis one-half as 

 long as height of head, thorax gray j)ollinose, not distinctly 

 vittate, scutellum bearing three long marginal pairs and a short 

 apical pair of macrocha'ta', last three segments of abdomen 

 bearing only marginal ones; wings hyaline, calypteres whitish; 

 length, 4 mm. Kirkwood, Mo. Three female specimens from 

 Miss M. E. Murtfeldt. Type No. 3574, U. S. National Mu- 

 seum brevirostris u. sji. 



Genus HETEROPTERINA Macq. 



neteropterina Mncqnart, Annales Soc. Ent. Franco, p. 420; 1851. 



Our species is black, the palpi and usually the base of the antenna^, 



sides of iirst three segments of the abdomen, femora, and tibia', yellow; 



^^^^^^^.^^-^^..^gi^^^j^ ^''^st three segments of abdomen each marked with a transverse row of 



'5^^"^'^ five black s])ots, two of which are on the lateral margins; three post- 



/— X sntural and two sternopleural macrocha'ta', scutellum bearing three 



yT^ margiiml ])airs; length, 3.5 to 5 mm. From the type specimen. North 



ern Illinois; Colorado, and Los Angeles County, Cal. (Entomological 



News, Vol. VI, p. 207 ; April, 1895.) nasoni C()(]. 



'On page 501 of the Encj'clopddie Mdthodiqne, Vol. X, 1828, St. Farge.an and Scr- 

 A'ille ]1ro])()S(^ the name of Meifjctii for c'nicrva Mcigcn, "which had been ])revioiisly 

 nsed in tliis gcsuiis hy Latreillo, and this name niiist thereft)re also be added to the 

 svnon\ niy. 



