PROC. ENT. SOC. WASH., VOL. 24, NO. 2, FEB., 1922 59 



The next items are of three new species belonging to the 

 Dicranomyia whartoni (Needham) group, all representing the 

 least development of the medial vein in the tribe Limnobini, 

 an almost similar veination existing in the Limnobinae tribe 

 Antrochini, or species Diotrepha mirabilis O. S., which has but 

 one media and three radii reaching the wing margin, but this 

 tribe is largely separated by having sixteen antennal segments 

 instead of fourteen as in the Limnobini. Another somewhat 

 similar veination is found in the tribe Anisomerini, species 

 Anisomera magacera O. S., this having one media and four 

 radii to the margin, and only six to ten antennal segments and 

 tibial spurs, etc. Dr. Needham when describing Dicranomyia 

 whartoni inferred that it may represent another distinct group, 

 he however did not erect a new genus possibly due to having 

 only a single female and single specimens may often be of the 

 freak of nature when considering Tipulid veination. Before 

 me are three other distinct species (in the first case a male and 

 female, the second two males and a female, and third a single male) 

 seemingly quite sufficient material to establish the constancy of 

 this veination in particular species, I would thus propose the 

 new generic name of Alexandriaria to contain these three new 

 species and Dicranomyia whartoni of Needham. The latter 

 should have the right to be the type of the genus but it does 

 not quite fulfill the idea of the characters, namely the complete 

 absence of that vein usually representing M3 or M3 --(- 4, in 

 whartoni; this seems to be represented as a spot occurring near 

 the wing margin situated on Cu 1 and I would therefore select 

 suffusca as the genotype. 



I take much pleasure in naming the proposed genus after the 

 well known Tipulid expert Dr. C. P. Alexander, whose kindness 

 to me in the past is much appreciated and most helpful. In a 

 recent letter, without having examined the specimens, Dr. 

 Alexander suggests that it may be only of subgeneric rank, but 

 contrary to the usual male hypypogium of Dicranomyia which 

 are always supposed to have a base of fleshy lobes, these have 

 quite a distinct form, being all horny; thus I did not follow 

 his suggestion. Whether subgenus or not they are at least 

 distinctly separated from the general tangle of the two genera 

 Dicranomyia and Limnobia, which at times seem impossible to 

 separate distinctly. 



Excepting where mentioned the types and paratypes are in 

 the author's collection. 



It will be noted that the type of Dicranomyia whartoni, the 

 male paratype of Alexandriaria intermedia and the type of A. 

 kooteniensis were all taken at lamplight, which would indicate 

 a habit of night flying. The types of suffusca were taken about 

 2 to 3 P. M. when out duck hunting. 



