NO. 1438. WINGS OF THE TENTHREDINOIDEA—MacGILLIVRAY. 629 



Costal area losers Blennocampinse. 



Fenusinse. 

 Scolioneuringe. 



Second anal cell reduced by coalescence Hylotominse. 



SchizocerinK'. 

 Perreyiina?. 



Anal cell losers Incaliinfe. 



Lobocerinse. 

 Acordulecerinse. 

 Pterygopliorinae. 

 Ferginte. 



GENERALIZED TENTHREDINID.E. 



The five subfamilies here iiichided do not represent a continuous 

 line of uioditication. Each subfamily is a separate entity, represent- 

 ing- only the tip of a line of ascent. In the anal area they haye 

 retained the pi'imiti\'e condition of the typical wing-, but in other 

 regions they are distinctly modified. The group contains g"enera that 

 haye been distributed among" yarious sul)families. The primitiye con- 

 dition of the anal cells and the prominent contraction in the third anal 

 yein shows their clo.se relation to the generalized Tenthredinoida^, 

 their close affinity as a group, and furnishes ample reason for their 

 inclusion as separate subfamilies in this place. 



Lophyriniv. — The broad area })etween costa (tig. 45) and Sc+R+M, 

 together with the distinct free part of Sc^ and the origin of media 

 from R, much as in the generalized families, denominates this group 

 as a generalized one. It is specialized in its loss of the radial cross- 

 yein and the open condition of the apex of the ce^l Rj+o of the hind 

 wings, in these ways surpassing all the subfamilies of the generalized 

 Tentliredinida\ The base of the radial sector bends abruptly toward 

 the apex of the wing, but not as a])ruptlj^ as this yein bends in the 

 Xyelidte (tigs. 31-35) and Lydidje (figs. 36-43). The apex of the cell 

 Ri+2 of the front wings is moderately blunt, due to the bending of R, 

 abruptly toward the wing margin at the origin of R^, though pointed 

 at its actual apex; the cell M^ is about twice as long as wide; the vein 

 M^+Cuj is joined to the middle of the cell M^; the medio-cubital cross- 

 yein is joined to Sc+R+M just before the origin of media, the cross 

 yein and M3+^ are slightly diyergent, the free part of R^ and the trans- 

 verse part of M.^ of the hind wings is present, and the first anal cell is 

 petiolated at apex for a short distance. An interesting modification 

 is the loss of the posterior half of the radio-medial cross-vein in many 

 species. 



This subfamily as known to me contains only the genus Lo2)hyruii 

 (tig. 45). It is usuall}^ associated with the genus Monoctenus (fig. 67), 

 and placed near the Hylotominte and its allies, but I believe that the 

 most important modification that can be used in assigning a location 



