OF INSECTS. 32? 



Fam. 1. (Culicida.) Sucker with six lancets. 

 Fam. 2. ( TipulidtB.) Sucker with two lancets. 

 Division II. (BRACHOCERA.) Antennae having three dis- 

 tinct joints ; palpi with one or two joints. 



Subdivision I. (Hexachceta.') Sucker with six lancets. 

 Fam. TabanidcB. 



Subdivision II. (TetracJuzta.') Sucker with four lancets. 



A. (Fam. CanomyidcB, Berida, Stratiomydce.) 



B. (Fam. Mydasidce, AsilidtB, Hybotidce, Empidce, He- 

 nopidce, Nemestrinidaz, BombyliidG, Anthracidce. 



c. (Fam. TJierevidce, Leptidce^ Dolidiopid&, Syrphida. 

 Subdivision III. (Dich&ta.) Sucker with two lancets, 

 containing CEstrus^ Conops, Musca, Sf-c. $<?., with nume- 

 rous divisions and subdivisions. 



SECTION II. (Pupipara; HOMALOPTERA, Leach.) Head im- 

 mersed 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. (Hippoboscida.) Head frontal. 

 Fam. 2. (NyctcribiidcB.') 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 antennae are beautifully pectinated 

 in the male, hut simple in the female. It contains 

 seven or eight British species, most of which are 

 among the most ornamented of all the Tipulidse* 

 The larvae appear to inhabit decayed trees. The 

 species figured occurs not unfrequently in most parts 



