866 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



Fig. 7.— Alettrolobus 

 OLiVTNUs. Egg. (Af- 

 ter SiLVESTRI.) 



The abdomen is somewhat longer than wide and oval in shape. 

 The anal operculum (fig. 6, No. 12) is somewhat wider than long and 

 its posterior margin is slightly sinuous. The Imgula gradually in- 

 creases in size toward the posterior part and termmates with a 

 rounded margin. 



The ovipositor (fig. 6, No. 9) is well developed and its two superior 

 processes are a little longer than the inferior and lateral ones and are 

 greatly attenuated. The lateral processes (fig. 6, 

 No. 10) are finely crenulate. 



Male. — Length of the body, mcludmg the wings, 

 1.49 mm.; without the wmgs, 1.30 mm. Length of 

 the antennae 0.78 mm. 



The antennae (fig. 6, No. 11) have their fourth 

 joint very short; the fifth is a little thicker than 

 and about twice as long as the fourth. The seventh 

 joint is about twice as long as the second. 



The last two segments of the abdomen are much 

 narrower than the preceding segments, and the last 

 segment (fig. 6, Nos. 12 and 13) is about as long as 

 it is wide, with an operculum the width of which somewhat exceeds 

 its length, and the "lingula" somewhat longer than the operculum. 

 The two posterior appendages are about one-third longer than the 

 last segment, with an attenuated apex turned inward. The penis 

 is shorter than the lateral appendages, gradually tapering and curved 

 upward. 



Egg. — The egg (fig. 7) is of subellip- 

 tical shape, with its free pole more at- 

 tenuated than the opposite one. One 

 side (the ventral one) is nearly straight; 

 the other is more or less convex. It is 

 furnished at the pole that is less attenu- 

 ated with a short and thin peduncle by 

 means of which it is fastened upon the 

 leaf. Immediately after its deposition it fig. s.-aleurolobus oLivmjs. new- 



» 1 , 1 1 ,1 LY HATCHED LARVA, DORSAL AND 



is of a pale-straw color; subsequently ventral views, (after savESTRi.) 

 it turns brown. Its entire surface is 



reticulated. Its length is from 0.247 to 0.253 mm. and its width 

 from 0.117 to 0.123 mm. 



Larva, first stage. — The newly hatched larva is of a fumose color. 

 It is not covered with wax. Its length is 0.325 mm. and its width 

 0.234 mm. The length of the antennae is 0.074 mm. and that of the 

 legs 0.061 mm. 



Its body (fig. 8) is greatly depressed and its contour is more or 

 less elliptical, being slightly narrower at the front than at the back. 



