NO. 1438. WINGS OF THE TENTHREDINOIDEA—MacGILLIVRAY. 633 



Tenthred'mhuv. — The limits of this subfamily as given here is the 

 same as that usually assigned it by systematists with the exclusion of 

 those genera in which the free part of the second anal vein appears 

 like an ol)lique cross-vein. The Tenthredininffi are generalized in the 

 preservation of the renmant of the contraction of the typical wing 

 (tigs. 56-58), the fairly broad costal area, and in the parallel medio- 

 cubital cross-vein and M.,+^. The medio-cubital cross-vein is oblique, 

 and is joined to Sc+R+M a considerable di.stance before the origin of 

 media. The cells between Rj and R., are broad, the radial cross-vein 

 long and bowed. The topograph}' of the hind wings is of the ordinary 

 type found in the Tenthredinidte, except that there has been a notable 

 reduction of the anal area of the wing, so that the lol)e behind the 

 second anal vein is aimo.st entirely wanting. In the front wings the 

 moditication of the second anal vein varies from a long vein in Toi- 

 t]ired(>iy^%. 5B) to a broad contraction in PacJiyprotast.s (tig. 58); in the 

 hind wings the cell Ri+., extends to the apex of the wing Rj. extending 

 beyond as a short spur. Although it is impossible to put it into 

 words, yet the general appearance of the wings of this subfamily is 

 distinctive and easily recognized and would never he confused with 

 those of anj" other group. 



Oimhlcina^. — Like the preceding group, this one has the same limits 

 as that given it l)y systematists. Its distinctive characters are the 

 narrow costal area (tigs. 59-60); the long, narrow-pointed stigma; the 

 narrow-pointed area l)etween the veins R^ and R.j, which always ends a 

 considerable distance before the apex of the wing, the vein R^ being 

 always extended for a considerable distance beyond the apex of this 

 area; the radial cross-vein is straight and slightly oblique; the medio- 

 cubital cross-vein usually joins Sc-fR+M more than its own length 

 before the origin of media; the medial cross-vein is frequently oblique; 

 the free part of the second anal vein may be present or its location 

 I'epresented by a broad anastomosis; the medio-cubital cross- vein and 

 the stem of ^^+i are divergent before; the tirst anal cell has been 

 shortened at apex by the coalescence of the tirst anal and the combined 

 second and third anals; the radio-medial cross-vein is wanting, so that 

 the cells R and R^ are coalesced. The wing area of the hind wings 

 has not been modified from the usual type and the vein topography 

 is the same, except that the cell R1+.2 ends a considerable distance 

 before the apex of the wing, the vein R^ being continued to near the 

 apex of the wing. The apex of the free part of the second anal vein 

 is transverse like a cross-vein, and there has been developed from 

 the apex of the tirst anal cell on the hinder angle a long secondary 

 spur to the wing margin. The costal area of hooks extends to or 

 beyond the middle of the cell Rih-.^. 



Uoplocamplu'de. — A small group, embracing two genera, Hoplo- 

 eainpa (tig. 61) and Hemiehroa (tig. 62). This and the following sub- 



