LASIOPTERA CEIIEALIS. 



197 



centre. These white bands are straighter in the male. The 

 oviduct was either broken off or entirely retracted in the female 

 specimen which I examined. The male caudal organs are small 

 and may be thus described : — The end of the abdomen is rather 

 thick and rounded, the forceps with the enclosed parts are 

 attached to the under side of the extremity, and turn a little 

 upwards; on the upper surface of the end of the abdomen two 

 little nipple-shaped hairy bodies project in front and above the 

 caudal organs. When viewed from above, the forceps appear to 

 have two thick flattened and twisted arms, each supporting a 

 sharp inverted claw. Between the roots of the forceps a 

 triangular process is seated, which terminates in two elongated 

 style -like bodies placed close together, which reach to within 

 a short distance of the ends of the arms of the forceps. When 

 viewed from the under surface, the style-like bodies appear to be 

 covered with a loose flap -like process which hides them (see fig.). 



Antennae of L. cercaJis, 

 male and female (Dr. 

 Meade). 



Caudal organs of male 

 L. cerealifi (Dr. Meade). 



Wings. The costa, together with the approximated first and 

 second longitudinal veins, are coated with black scales; one white 

 spot is placed at the root of the wing under the black margin, 

 and a second at the point of termination of the second vein in 

 the costa. The hind margin of the wing is ciliated with black 

 hairs, and the edge of the wing itself is also a little thickened 

 (with black scales) for a short distance from the root forwards. 



Legs dull black, being more or less clothed with minute black 

 scales, knees tawny when these are abraded. The coxae, knees, 

 and under sides of the ends of the tibia) are ornamented with 

 patches of pure white scales. The first joints of the tarsi 

 (metatarsus) are very short, as in the genus Cecidomyia. 



E. H. J\Ii.;ai>e. 



