82 ENTOMOLOGICAL SOCIETY 



(not transverse as in Conwentzia and Malacomyza) ; a veinlet con 

 necting cubitus and first anal present. In hind wings, which are long 

 and slender, reaching beyond discal cell of fore wings, the venation 

 is similar to that of the front pair, but the branch from the radial 

 sector seems to be rather a branch from the median ; margins of wings 

 minutely ciliate. 

 Length, 3.6 mm. 



Two specimens from Los Angeles, Cal. 



Genus CONWENTZIA Enderlein. 



Conwentzia Enderlein, Ber. West-preuss. Bot.-Zool. Ver., 1905, p. 10. 



Head rather longer than broad, smaller than the thorax; antennae 

 simple; tibia of middle and hind legs swollen in middle. Fore wings 

 rather long, both radial sector and median vein forked once ; connect 

 ing veinlet from cubitus ends in the median before the fork of the 

 latter; the hind wings are scarcely more than one-half as long as the 

 fore pair, and less than one-half as broad, being rather strap-shaped; 

 neither the radial sector nor the median vein is forked, and they do 

 not reach the posterior margin of the wing. 



Type: C. pineticola Enderlein. 



Conwentzia hageni, n. sp. (PI. VI, figs. 3, 4). 



Head black; antennae brown, of about 35 joints, more slender in 

 female than in the male ; thorax and abdomen brown, male abdomen 

 very short, in female as long as hind wing; legs dark, hind tibia 

 slightly fusiform, one fourth longer than femur, tarsi rather short. 

 Wings pale, mealy; barely ciliate on margins, the cilia being extremely 

 minute. Fore wings rather long, venation as figured, the cross-veinlet 

 from radius to subcosta varies somewhat in position, as well as that 

 from fork of radial sector to the upper branch of median. The hind 

 wings are very short in both sexes, slender and strap-shaped; with but 

 few veins barely reaching the margin. 



Length, 3.6 to 4 mm. 



I have specimens from Sea Cliff, N. Y. ; Washington, D. C. ; 

 Falls Church, Va., and Aurora, W. Va., but it is not as com 

 mon as Coniopteryx vicina. 



Genus ALEUROPTERYX Low. 



Aleuropteryx Low, Sitzungsb. Kais. Akad. Wiss. (Math. Natur. Cl.), 

 xci (i), p. 79, 1885. 



Head as broad as long, a little smaller than the thorax; antennae 

 of male with a tooth below on the second joint; tibia of middle and 

 hind legs not swollen in the middle. In the front wings the radial 

 sector is simple, and the median vein has two branches; the cross-vein 



