1S99.] 131 



more distinct ; each black point on the neuration forms the apex of a small sagittate 

 pale grey marking ; gradate nervules black, the lowest in the inner series often con- 

 tinuous with the one above it, or if placed nearer the apex it is only for a short 

 distance (more rarely it is placed nearer the base). Posterior- wings having the 

 costal and dorsal margins pale grey ; the costal and gradate nervules, and often 

 some of the marginal forks, conspicuously blackish. 



In the ^ the dusky yellowish appendages are very broad, the apex furcate, with 

 a wide excision between the branches ; tlie upper branch broad, its apex truncate 

 and slightly excised, the lower angle acute, the upper produced into an out-turned 

 spine (which is probably articulated, for it is sometimes turned inward) ; the lower 

 branch much shorter than the upper, obtuse, slightly divergent. 



This is apparently equally wide-spread as the last (and it also 

 occurs in North America : I have specimens from the State of New 

 Tork, and probably also from North Carolina). It and the preceding 

 are almost universally confused in collections, and it is admittedly 

 difficult to separate the females in some cases, but in considering a 

 large mass of materials I think the characters given above are fairly 

 constant ; I have examined about 100 examples of each. 



Linne's description suits this tolerably well, and the words 

 "antennis fusco alboque annulatis" effectually, so it seems to me, 

 exclude the preceding species (yet the Linnean " species " were often 

 more collective than anything else). It was the humuli of Schneider 

 (according to a type), and of Hagen according to a sketch of the 

 appendages. It was, in the main, the Jiumuli of my Monograph of 

 1868,* but the figure and description of the appendages there given 

 are very indifferent (Eambur, in 1842, had already given an excellent 

 description of the appendages under Mucropalpus lutescens). It was 

 the humuli of Wallengren according to his letters and description of 

 the appendages, but I think he did not fully understand the differences 

 from the last species according to specimens received from him 

 without names. 



H. OEOTYPUs, Wallengr. (1871), Reuter?. 



sinmlans. Walk., Neuropt. Brit. Mus., pt. ii, p. 285 (1853) ; 

 crispus, id., I. c, p. 288, nee Steph. 

 varieqatus, var. h, Zett., sec. Wallengr. 



Dusky or brownish-yellow, with the sides of the thorax broadly blackish-brown. 

 Pronotuni apparently shorter than in the three preceding species, transverse : an- 

 tennae greyish-yellow, witli indistinct darker annulations : abdomen blackish above, 

 and usually paler beneath, in the dry insect : legs dusky yellowish ; the tarsi scarcely 



* At p. 181 of my " Monograph " there is a remark to the effect that two species were probii- 

 bly intermingled, and the words concerning the appendages in many dry examples show that I 

 had lutescens in view when writing them. 



