196 THE CANADIAN ENTOMOLOGIST 



the 1908 name that was preoccupied, renamed this species Tipula xanthomela. 

 The 1912 species is here renamed as above in honour of Prof. R. W. Doane. 

 Tipula ludoviciana, new species. 



Belongs to the tricolor group; closely related to T. sayi Alex, (costalis Say); 

 male antennae very Ipng, bicolorous; wings with a dark costal margin, beneath 

 which is a vitreous streak; a narrow, brown seam albng vein Ci^. 



Male.— hength about 13.5-14 mm.; wing 11.5-11.8 mm.; antenna? about 

 13-13.5 mm. Hing l;eg, femur 9.3 mm.; tibia, 11 mm. 



Female. — Length about 12 mm.; wing 11.4 mm. 



Male.- — Frontal prolongation of the head moderately elongated, liglit 

 brown, the nasus slender. Mouth-parts and palpi dark brown. Antennae 

 exceedingly elongate, approximately as long as the entire body, the scape light 

 brown, the flagellar segments with the basal swelling dark brown, the pedicel 

 light yellow, on the terminal segments more infuscated; the pedicel of the in- 

 termediate flagefflar segments is six times as long as the basal enlargements; 

 in addition to the usual black verticils, the segments are provided with a delicate 

 pale pubescence that is easily removed. Vertical tubercle prominent, entire. 

 Head dark with an indistinct darker median line. 



Mesonotum brown, probably more or l^ss gray pruinose in dr>^ material, 

 the preescutum with three very broad, dark brown stripes; postnotum palp, 

 margined with brown. Pleura pale, probably more or less pruinose in I^fe, 

 with indistinct dark markings on the mesoplVura, and dark brownish l)lack on 

 the mesosternum between the middUe and hind coxae. Halteres slender, brown. 

 Legs with the coxae largely pale; trochanters yellowish, dark brown apically; 

 femora and tibiae brown, darkest apically; tarsus brown. Wings gray, the costal 

 region dark brown, this including cells C, Sc, 1st Ri, 2nd R\, the anterior portion 

 of R, and the outer end of i?2; a broad brown seam along vein Cii occupying 

 the space between that vein and the weak degenerate anal vein immediately 

 behind it; a vitreous longitudinal stripe behind the brown costal margin, this 

 including the posterior portion of celj R, the anterior portion of M, and the 

 base of cells Rs and Rb; veins dark brown. Venation: m-cii short but distinct; 

 petiole of cell M\ about as long as cell 1st Mi. 



Abdominal tergites light brown, the transverse impressed areas on either 

 side near the base of the segments very distinct, bljack; sternites paler. Male 

 hypopygium smal|, compressed, as in the tricolor group, with the sclerites fused 

 into a continuous ring. Ninth tergite with the median Ibbe very depressed, 

 broad, the posterior margin with a very flattened, V-shaped notch which is 

 black and roughened; no pencil of hairs on the sides of the median lobe. Outer 

 pleural appendage oval' flattened, pale, with sparse black hairs; inner pleural 

 appendage simple in structure. Ninth sternite carinate. Eighth sternite 

 unarmed. 



Female.— SimlljELr to the male; antennae short, much darker colbured than 

 in the male; ovipositor with the tergal valves long, slender, straight; sternal 

 valves short, very compressed, the tips subacute. 



Habitat. — Louisiana. 



Holotype.— d", Morgan City, Louisiana, June 18, 1917, (Cornell University 

 Expedition, Lot 542, sub. 16). 



Allotopotype. — 9. 



