188 Mr. R. MacLachlan's Monograjjlt of 



Section 3. Four {exceptionally five) sectors in th.e 

 anterior wings (PL X. fig. 10) . 



13. Hemerobids concinnus, Stephens. 



Hemerohius concinnus, Steph. 111. vi. 106, pi. xxx. fig. 3 

 (1836) ; Hag. Ent. Ann. 1858, p. 28. E. hirtus, Burm. 

 Handb. ii. 975 (not of Linne) . H. cylinclripes, Wesm. 

 Bull. Acad. Brux. 1840, p. 218 ; Brauer, Neurop. Aust. 

 56. H. atoniarius, Gozsy, Sitz. Akad. Wiss. 1852, 

 p. 346. 



Unicolorous yellow ; face sometimes inclining to 

 piceous. 



Abdomen ochreous-yellow, slightly brownish, with 

 golden hairs. In the S the appendices are broad, 

 yellow, pointed, with a tooth on the middle of their lower 

 edge (PL X. figs. 10 a, 10 fe) . In the ? the apex of the 

 abdomen is armed with a long, flattened, slightly acumi- 

 nate, obtuse borer, the apex of which is often curved 

 upwards in dry examples (PL X. fig. 10 c) . 



Legs yellow, the tarsi brownish ; tibiae cylindrical, not 

 spindle-shaped as in the rest of the species. 



Wings very broad, and broadly rounded : anterior pair 

 with the costal area very broad, dull yellowish, the apical 

 margin spotted with fuscous, and with an appearance of 

 two fuscous transverse fasciae following the gradate 

 veinlets ; the membrane slightly clouded with pale 

 grayish ; neuration pale, the costal veinlets and all the 

 longitudinal veins, except the sub-costa, regularly dotted 

 with blackish points, with long pale hairs ; gradate vein- 

 lets dark fuscous, eight or nine in the outer series, six to 

 eight in the inner, continued further towards the base of 

 the dorsal margin by two or three others, two rows of 

 three or four at the base ; four (exceptionally five) 

 sectors : posterior piair paler, without markings, cestui 

 margin darker, only the costal veinlets dotted, outer 

 gradate series with seven veinlets, inner with two, 

 whereof that nearest the dorsal margin is conspicuously 

 blackish. 



Length of body 3^-4 lines 3 expanse of wings 9-11 

 lines. 



Usually very rare, but found abundantly in the summer 

 of 1867, by Mr. Barrett, in fir-trees, in Woolmer Forest, 

 Hampshire. It is the largest European species. 



