158 Mr. R. McLachlan on 
the points are less numerous, and the apical ring more distinct ; 
hairs of legs whitish with a few blackish intermingled ; first tarsal 
joint longer than, and the fifth as long as, the 2nd to 4th united ; 
spurs slender, testaceous, longer than the Ist tarsal joint in the 
posterior legs, and equalling the first 3 tarsal joints in the anterior ; 
abdomen slender, blackish, a whitish spot on each side of the seg- 
ments after the second, placed near or at the anterior end, elongate 
on the third segment but becoming more rounded on the apical 
segments (partially obliterated by desiccation), the narrow terminal 
segment yellow, furnished ventrally with apical black spines (¢ 2). 
Wings long and narrow, subacute, the posterior somewhat shorter, 
hyaline ; neuration whitish interrupted with black, causing a varie- 
gated appearance, especially on the anterior, where there is a series 
of seven or eight short black lines along the radius, the last forming 
a spot before the junction of the radius and subcosta, another spot 
(almost united with the preceding) at the junction and invading 
the pterostigma which is otherwise whitish, some larger black lines 
along the lower cubitus, and one at the junction of the lower branch 
with the hind margin, a conspicuous slightly angulate oblique black 
line along the inner series of (about 8) gradate nervules, the axils 
of the marginal furcations blackish, as are also most of the trans- 
versals ; in the posterior the black marks are nearly absent, that 
at the pterostigma being the only one at all noticeable; in the 
anterior the sector radii has its origin near the middle of the wing, 
but in the posterior it commences much nearer the base. 
Length of body, 17 mm. ; expanse 39 mm. ; greatest breadth of 
anterior wing 5 mm. 
Hab. Biskra, 26th April, 1895, one example at light. 
A very delicate little Ant Lion, deceptively resembling 
Gymnocnemia variegata. Alhed to M. nemausiensis, Bork. 
(i.e., to the true species of that name, ¢f. Entomol. Monthly 
Magazine, xxv, p. 345), but more delicate, and with the 
pronotum differently marked, &c. Also probably allied to 
M. tenellus, Klug, but I do not think it can be identical 
therewith according to the description and figure. Lucas 
recorded MM. tenellus from Algeria, but it is not possible! 
to determine the exact species without examining the 
material. 
In Hagen’s “Synopsis Specierum” (Stett. ent. Zeit., 
xxvil, p. 148), JZ. tenellus, Klug, is referred to the genus 
Creagris, but the figure does not show the neural character 
of that genus, and Weber’s figures are usually of extreme 
accuracy. 
