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MORDELLISTEN A. 34: 
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little smaller, the prothorax and underside (the last ventral segment excepted) black, 
and the intermediate legs pitchy-brown. At first sight, WZ. flavicornis would appear to 
be a variety of the female of WV. filicornis; but the difference in the form of the 
antennee is much greater than in the sexes of the allied species. 
61. Mordellistena funerea. 
Moderately elongate, narrow, subparallel, black; the pubescence sericeous, fine, uniformly brown. Palpi 
black, piceous, or obscure testaceous, the last joint of the maxillary pair long and subcultriform in 
the male, shorter in the female; antenne moderately long in the male, a little shorter in the female, 
slender, filiform, black, the four basal joints usually obscure-testaceous, joints 3 and 4 short, equal, 5 
stouter than and about twice as long as 4, 5-10 subequal, longer than broad ; prothorax nearly as long 
as broad; elytra moderately long, subparallel in their basal half; beneath black, brownish-cinereous- 
pubescent; pygidium very elongate, about two and a half times the length of the hvpopygium ; legs black, 
the anterior femora and the anterior and middle tibia sometimes obscure testaceous, the hind tibial spurs 
flavous ; the hind tibiee with three well-defined ridges—the first extending across the outer face of the 
tibia, the others short; the first joint of the hind tarsi with three, the second joint with two, oblique, 
parallel ridges. 
Length to end of the elytra 2-33, to tip of the pygidium 25-4, millim. (¢ 2.) 
Hab. Mexico, Chilpancingo (H. H. Sinith, Hoge), Tierra Colorada, Teapa (H. H. 
Smith); Guatemaua, Chiacam, Tamahu (Champion). 
Nine examples, varying greatly in size. Exceedingly like MW. murina and only 
separable therefrom by the elongated anterior carina of the hind tibie. M. funerea is 
the only unicolorous Central-American species possessing this peculiarity. The last joint 
of the maxillary palpi is almost cultriform in shape in the male. From M. occidentalis, 
of which it may prove to be acolour-variety, it differs in the black head and thorax and 
darker limbs. The eyes are more finely faceted and the antenne much shorter than in 
M. oculata (3). 
62. Mordellistena distorta. (Tab. XV. figg.16,¢; 16a, antenna; 16 4, ante- 
rior tibia and tarsus ; 16 ¢, hind leg.) 
3. Elongate, narrow, subparallel, above and beneath, the oral organs, and antenne flavo-testaceous, the eyes 
black, the elytra slightly infuscate at the sides about the middle and also posteriorly, the pubescence 
uniform. Head comparatively long, very convex ; the eyes exceedingly large, occupying the whole of the 
side of the head, coarsely granulated; last joint of the maxillary palpi elongate, not very stout, scalene- 
triangular ; antenne slender, filiform, moderately long, joints 3 and 4 very short, subequal, the two 
together shorter than 5, 5-11 elongate, subequal, rather more than twice as long as broad; prothorax as 
long as broad; elytra elongate, subparallel in their basal half; pygidium exceedingly elongate, slender, 
about three times the length of the hypopygium; legs very elongate, flavo-testaceous, the hind pair 
slightly darker, the intermediate pair very slender; anterior tibiz very broadly dilated and flattened, the 
inner edge almost straight for the greater part of its length and then rounded to the apex, the outer edge 
sparsely setose and a little rounded, armed on the lower side near the outer apical angle with a very fine 
sbarp black spur; anterior tarsi with joint 1 as long as the others united, very strongly curved inwards, 
exceedingly slender for two-thirds of its length, and becoming club-shaped at the apex, joints 2 and 3 
moderately dilated, 4 short and narrow, slightly lobed beneath ; the hind tibiz with three oblique parallel 
ridges—the first extending across the outer face of the tibia to near the base, the second much shorter 
