lOG THE ENTOMOLOGIST. 



The Lasiopterfe have similar habits with the other Cecids. 

 Their larvse mostly live in the woody stems of shrubs, or in the 

 haulms of reeds and grasses, in which they often form gall-like 

 swellings, such as those so well figured by Keaumur,* caused by 

 L. ruhi on the bramble. 



L. CEREALis, Lndm. 



Nigra, squamis pilisque albis variegata. Thorax nitidus, 

 lateribus rufis. Scutellum apice testaceum. Halteres petiolis 

 rufis, clavisque albido-squamatis. Abdomen albo cinctum. Aire 

 maculis duabus niveis margine superiore signatae. Pedes atri, 

 nigro-alboque villosi. Antennae IT-articulatsein ^ , 23-articulatce 

 in ? . Long. 3 mm. 



Head small and round ; eyes contiguous above in both 

 sexes ; palpi long, 4-jointed, two basal joints short, thick, and 

 black, third and fourth joints yellow, the third longer than the 

 two first together, and the fourth twice as long as the third, 

 antennae reddish brown, becoming lighter towards the end ; those 

 of the female are about as long as the head and thorax together, 

 composed of twenty-three short, compressed cylinders, which 

 become gradually smaller towards the apex, which is conical ; 

 those of the male are about one -third shorter than those of the 

 female, and more slender, formed by seventeen joints of a more 

 globular form and less closely pressed together than in the 

 opposite sex ; they are furnished with whorls of short hairs, both 

 in male and female. f 



Thorax shining black, furnished with some scattered fine 

 white hairs which are most easily detached ; the sides and roots 

 of the wings are red ; a silvery white patch of white hairs or 

 rather scales, is seated on the side above the fore coxae. 



Scutellum black, with the apex tinged with red, and witli a 

 patch of white hairs at the base. Abdomen dark brown above 

 and red beneath ; the lower margins of the segments are 

 furnished with transverse bands of white scales, forming in the 

 female two small lunular-shaped patches (with the convex side 

 upwards) upon each ring, which meet or approximate only, in the 



* Vol iii., PL 36, fig. 1. 



t The antennip of this species so closely resemble those of L. ruhi, which are 

 figured by Winnertz (both in shape and number of joints), that I have inserted a 

 copy of his engraving. Plate 4, figs. 13 and 14. 



