- Fam. 1. (Culicidæ.)—Sucker with six lancets.
- Fam. 2. (Tipulidæ.)—Sucker with two lancets.
- Division II. (Brachocera.)—Antennæ having three distinct joints; palpi with one or two joints.
- Subdivision I. (Hexachæta.)—Sucker with six lancets. Fam. Tabanidæ.
- Subdivision II. (Tetrachæta.)—Sucker with four lancets.
- a. (Fam. Cænomyidæ, Beridæ, Stratiomydæ.)
- b. (Fam. Mydasidæ, Asilidæ, Hybotidæ, Empidæce, Henopidæ, Nemestrinidæ, Bombyliidæ, Anthracidæ.
- c. (Fam. Therevidæ, Leptidæ, Dolichopidæ, Syrphidæ.
- Subdivision III. (Dichæta.)—Sucker with two lancets, containing Œstrus, Conops, Musca, &c. &c., with numerous divisions and subdivisions.
Section II. (Pupipara; Homaloptera, Leach.)—Head immersed in the front of the thorax; sucker enclosed in two valves; claws with many teeth. The transformation to the pupa state undergone in the body of the parent fly.
- Fam. 1. (Hippoboscidæ.)—Head frontal.
- Fam. 2. (Nycteribiidæ.)—Head dorsal.
Of the few examples, native and exotic, selected to illustrate the general appearance of the insects of this order, we shall first refer to
CTENOPHORA PECTINICORNIS.
Plate XXXIV. Fig. 1.
Meigen, Curtis. Tipula pectinicornis, Linn. Tip. nigro-crocea, De Geer. Tip. variegata, Fabr. Tip. splendor. Harris.
In this genus the antennæ are beautifully pectinated in the male, but simple in the female. It contains seven or eight British species, most of which are among the most ornamented of all the Tipulidæ. The larvæ appear to inhabit decayed trees. The species figured occurs not unfrequently in most parts
