-AMERICAN IIYMKNOPTERA, 61 



J^. D. (Hylotoma) melanictera, King, Bcrl. Mag. vi, 1810, 309,41; Jalirbuclior, 



245, 78.— Para. 

 y. D. (Hylotoma) trigemina, Klug, Berl. Mag. vi, ISlC, ?,Q7 , '.'.d ; Jalirb. 240, SI.— 

 Brazil. 



Wini/.<; loiih one marginal and four subrnarr/inal celts. 



1. Socond and third submarginals each witli a I'ocLirrenl iiervurc. 

 Posterior tibife without side spur. 



23. PTILIA, L.'pel. 

 Pfilia. Lppel., Monogr. 1823, 49, k. 



Westwood, Mod. Class., App. 52. 

 H;/lolo?na, **, Klug, Jalirbuch. 

 Hylotoma, A, Stepliciis. 



WiiH/ii with one marginal, appendiculate, am] four submaruinal cells, 

 of which the second and third each receive a recurrent nervure ; the 

 third produced and wider on its upper edp;e. 



Antennx 3-articulatc, of females pilose, somewhat filiform, of males 

 furcate. 



Tihif£ all simple. 



Lepel., in his original diagnosis, gives but three submarginal cells. 

 Brulle in his synopsis confounds this with Saricocera. 



1. P. biramosa. 



Ili/lotoma biramosa, Klug, Jahrbueh., 1823, 242, 64, % . 

 "Antennae furcate, black ; thorax before and on each side wliite; abdoniou 

 luteoLis, with tlie sides black at base. Larger than II. f areata." 



" % . Head black, with white hairs; auteunoe bifurcate, the branches 

 ciliate; corselet white, black in the middle, with white hairs; scutel 

 and tegulae black; legs brownish, thickly hairy; wings dusky, at tlie 

 base clear, transparent; nervures and stigma black; two recurrent 

 nervures touch the second submarginal cell, the second in the middle, 

 and the first at the junction of the first and second cells; abdomen 

 reddish-yellow, toward the base whitish; the second and third seg- 

 ments black at the sides-'' 



" Mexico. One male." 



A female from Mexico agrees with this description. The antenn;i3 

 are like Hijlotoma, compressed, ciliate within. Anterior angle white. 

 Legs black, with the femora and tibiae whitish before, pilo.se, all the 

 spurs stout, rather obtuse ; wiags evenly violaceous, their basal fourth 

 })erfectly el^ar; the appeudiculate cell is rather large; the first and se- 

 cond submarginals are of equal size, the second receiving both the re- 

 current nervures; the third much retracted below, about one-third as 

 wide as above ; lanceolate cell widely contracted, apparently petiolate ; 

 under wings not appendiculate, with two middle cells, the lower very 



