382 INSECTS. DIPTERA. 



first joint longer than the second, and the third or last in the 

 form of an elongated almost cylindrical cone, pointed at the 

 end, and terminated by a distinct style or seta, with an arti- 

 culation at the base. 



These insects have the abdomen in the form of an elongated cone, much pointed 

 in the females, with the feet robust. They appear generally towards the end of 

 spring or autumn. Some are found on the ground in dry or sandy places, and 

 others among trees or cut wood. 



A. crabroniformis, Lin. Head covered with reddish brown hairs ; 

 thorax yellowish brown, with two small brown lines ; three first 

 rings of the abdomen black, the others fawn-coloured ; wings yel- 

 lowish, spotted with brown at their extremity ; feet yellow, with 

 the thighs brown. One inch long. Inhabits Europe. Shan, vi. 

 pi. 112. 



K.forcipalus, Lin. Gray cinereous, with a longitudinal band on 

 the thorax ; antennae, rostrum, and extremity of the abdomen 

 black ; balancers yellow ; wings obscure ; feet obscure brown. 

 7 lines long. Inhabits Europe, in gardens and woods Shaw, vi. 

 pi. 112. 



TRIBE VII. HYBOTINI, Lat. 



Mouth beardless ; head globular, entirely occupied by the eyes 

 in the males ; last joint of the antennae lenticular, with an 

 elongated seta in the form of a hair. 

 Gen. HYBOS, OCYDROMYA, DAMALIS. 



Gen. HYBOS, Lat. 



Antennae much shorter than the head, inserted on the fore part 

 and composed of two joints, with a long seta at the extremity; 

 palpi bent upwards ; thighs of the last pair of feet tumid. 



H.fonebris, Lat. Deep black ; wings obscure, with a black mar- 

 ginal spot ; posterior thighs large and serrated below. Inhabits 

 Europe Nouv. Diet. xv. 433. 



TRIBE VIII. EMPIDES, Lat. 



Rostrum projecting, almost cylindrical and perpendicular, in- 

 closing a sucker ; antennae of two or three principal pieces, 

 the last without divisions ; body elongated ; balancers nak- 

 ed ; head rounded ; abdomen cylindrical or conical ; feet long. 



The insects of this tribe are of small size, and live on prey or flowers. Their an- 

 tennae are short, and always terminated by a seta ; and the rostrum often long. 



t. Antennae of three joints. 



1. First joint of the antennas long and conical. 



A. Rostrum much longer than the head. 



Gen. EMPIS, RHAMPHOMYIA. 



B. Rostrum scarcely longer than the head. 



Gen. HILARIS, BRACHYSTOMA. 



2. Last joint of the antennae globular. 



Gen. GLOMA. 



