REVIEWS. 
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with four or live very obsolete veins, the tip armed with a long curved 
bristle, which is triple in the female, antennas 12-jointed, the first joint 
short and stout, the last oblong and thickened, the intermediate joints small, 
globose, and compact; one species C. ambigua , 1^-2 lines long, found on 
the shore of a lake in Tornea Lapland. TiPULiDiE— Psiloconopa , wings 
divaricated, venation nearly as is Limnobia , Mg. Zw. i. t. 5, f. 6, antennae 
16-jointed, moniliform, eyes meeting under the antennae, proboscis short, 
palpi 4-jointed ; one species Ps. meigeni , 3 lines long, like Erioptera late¬ 
ralis in colour ; found throughout the northern provinces in watery places. 
Tricyphona , distinguished from Limnobia by the peculiar venation, type 
L. immaculata , Mg. Zw. i. t. 5, f. 8. Dicranota , antennae 13-jointed, type 
Limnobia pavida Hal. (Z). guerinii Ztt.), and it seems to us that L. bima- 
culata (Schiimmel) is congenerous, although Zetterstedt has left that species 
among his Limnobice. Leptid^e —Ptiolina Stg., dismembered from 
Atherix , third joint of antennae oval, with short apical arista; e.gr. A. 
meloena Mg. Bombylid^e— Psilocephala , founded on the species of The- 
reva with naked face ; but Loew (Beytr. ii.) has retained them as a portion 
of that genus. Acroceriiee —Splicer ogaster, resembling Cyrtus in the an¬ 
tennae and exserted proboscis (which is horizontal and as long as the head), 
and Henops in venation ; the alulae very small; one species Sph. arcticus , 
little more than 1 line long, a single specimen found on a mountain of Fin- 
mark. Empire-— Anthalia , like Euthyneura, third joint of antennae ovate, 
without a style, hind femora rather long; seven species, almost exclusively 
northern; A.furcata , having the cubital vein forked, should probably be 
removed from this genus. Iteaphila , like Euthyneura , but the cubital 
vein forked; two species, chiefly northern. Hormopeza , seems to come 
near to Pag as , but the third joint of the antennae is ovate, and the style 
longer in proportion, the fore tarsi moniliform in the male ; one species H. 
obliterata , above two lines long; Tornea Lapland and the north of Bothnia. 
Microcera Ztt. is synonymous with Sciodromia. Phyllodromia , type 
Tachydromia melanocephala Fabr., differing from Hemerodromia chiefly 
by the simple cubital vein. Wiedemannia , type Heleodromia bistigma 
Curtis (W. borealis Ztt.); Wahlberg has remarked that longicornis is the 
only genuine Brachystoma , and that the other species referred to that 
genus by Zetterstedt belong to Paramesia Macquart (synonymous with 
Heleodromia) ; we would add that both Heleodromia and Wiedemannia , 
and, perhaps, Ardoptera too, might be reunited with Clinocera ; and 
Wiedemannia has been employed as a generic name, not only in another 
family of Diptera , but in botany also. Dolichopid^:— Thinophilus , like 
Phaphium , but the third joint of antennae round, with dorsal arista; type 
