1911] Aleiander — Synonymical and Other Notes on the TipuUdw (Dipleni) 197 



Basal deflection of Cui anterior to the middle of cell 1st Mi. Rs+s, so arcuated 

 that Rs is not in a direct hne with Rj. 2d Anal vein curved sharply inward at its 

 tip. Cell R> is decidedly anterior to cell Rs and about on a level with cell Isl Mi. 

 -Mi + i fused to the wing-raargin, eUminating cell Mi. (See fig. 3.) 



Lwmopkila 7ioieboracerisis comes in lh(> .same category with 

 lenia, O.S., quadrata, O.S.; nigrilinea, Doaiio and antennuki, Coq. 

 in that it lacks cell Mj. It differs from these .species as follows: 



L. lenia, O.S. (fig. 1) (E. U. S.) has: Scj, slightly longer than 

 Sc2; petiole of cell R2 (R2+3) rather long, two thirds the length of 

 R2; cross-vein r usually just be.yond the fork; vein Ro short, ob- 

 lique; Ra almost on a straight line with R3; cells R3, R5 and 1st 

 j\l2 all on a level; distal portion of vein M3 rarely longer than cell 

 1st M2; Rs usually short, arcuated at origin; coloration, ochra- 

 ceous-yellow. 



L. quadrata, O.S. (fig. '2) (E. U. S.) has: Sc2 longer than Scj; 

 petiole of cell R2 (R2 + 3) nearly as long as R2; the cross-vein r in- 

 serted ju.st beyond the fork; vein R2 short, oblique; Rg in a straight 

 line with R3; cells R3, R5 and 1st M2 all on a level; distal portion 

 of vein M3 about as long as cell 1st JM2; R3 long, gently arcuated 

 near its origin; coloration yellowish-gray. 



L. nigrilinea, Doane (Jour. N. Y. Ent. Soc., VIII, p. 190) (W. 

 U. S.; Olympia, Wash.) has: Petiole of cell R2 one and one half 

 the length of the basal deflection of Cuj; cross- vein r shghtly re- 

 moved from tij> of Ri; cell R3 slightly anterior to cell R5; general 

 color yellow, with a black dorsal band. L. (female) 12 mm.; distal 

 portion of wings pubescent. 



L. antennaia, Coq. (Jour. X. Y. Ent. Soc., XIII, pp. 58, 59) 

 (W. Am.; Brit. Col.) has: Petiole of cell R2 obliterated or nearly 

 so; cross-\ein r at the tip of Rj; cell R3 slightly anterior to cell 

 R5; general color black; antennte of the male long, reaching the 

 base of the 6th abdominal segment. 



Although noveboracensis agrees, superficially, with lenta and 

 quadrata, it belongs to a very different group of species. In all 

 respects except the presence of cell Mj, this species is a typical 

 member of the luteipennis group of the genus. The four species, 

 luieipennis, contempta, inornata and the present species, agree in 

 possessing the following group characters: Structure of the head, 

 narrowed and prolonged behind; neck {)roduced forewards to 



