LIMNOPIIILA. 227 



Black, thorax shining, wings with a pale brownish tinge ; stigma brown ; 

 feet yellowish, tips of the femora and of the tibiae brown. Long. corp. 

 0.25—0.3. 



Head black, covered above with a brownish-gray bloom, and 

 hence opaque ; rostrum and palpi brown ; antennte brown, clothed 

 with moderately long hairs, but without verticils ; when bent 

 backwards, they would reach but little beyond the root of the 

 wings ; the joints of the flagellum are short, somewhat obconical, 

 becoming cylindrical towards the tip. Thorax black and shining 

 above ; pleurae opaque ; halteres yellowish, knob faintlj- brownish. 

 Abdomen blackish-brown,»the male forceps reddish-black. Coxte 

 yellowish ; feet brownish-yellow, clothed with a rather long, 

 black pubescence ; femora and tibiae infuscated at the tip ; tarsi 

 brown. Wings with a slight brownish tinge, yellowish near the 

 root ; veins brown, except those near the costa, which are yellow- 

 ish ; stigma brown ; cross-veins faintly clouded with brownish ; 

 petiole of the first vSubmarginal cell not longer than the great 

 cross-vein ; second submarginal cell but slightly longer than the 

 first posterior. 



Hab. White Mountains, N. H., in July; not rare. I have 

 seven male and two female specimens. 



The venation of this species is very like that of L. rufihasis 

 (Tab. II, fig. 3). The forceps of the male is also somewhat like 

 that of the latter species ; the outer horn}- appendage is elongated 

 and curved ; the inner one stout and short (compare Tab. IV, 

 fig. 27, forceps of L. rufihasis). The ovipositor of'the female 

 has long, slender, and rather straight valves. The relationship 

 of the two species is evident, and L. munda may be also con- 

 sidered a Prionolabis. 



23. Li. montaua, 0. S, % and 9 • — Thorace cinereo ; vittis quatuor 

 fuscis ; alls fusco-maculatis. 



Thorax gray with fonr brown stripes ; wings spotted with brown. Long. 

 Corp. 0.35—0.4. 



Syn. Limnophila {Dacti/lolabis) montana 0. Sacken, Proc. Ac. Nat. Sc. Phil. 

 1859, p. 240. 



Head gray ; rostrum and palpi brown ; antennae brown, four 

 basal joints grayish ; they do not reach much beyond the basis 

 of the wings in both sexes ; joints of the flagellum elliptical, 

 clothed in the male with a dense, microscopic pubescence ; verti- 



