174 INSECTS AFFECTING THE ORANGE. 



Broods. There does not appear to be any definite number of broods. 

 The beetles are rather more abundant in spring and early summer, and 

 the iarvje in midsummer and winter ; but the insect propagates at all 

 seasons, and its development is only interrupted by frosty weather.* 



OTHER BEETLES BOEING IN ORANGE WOOD. 



Tn addition to the species hitherto mentioned, which are so frequently 

 found in the wood of the Orange that may properly be considered a 

 part of the regular fauna of the tree, there are numbers of other wood 

 eating Coleoptera, which are less obviously connected with the plant, 

 but occasionally feed upon it, and have been bred from the dead limbs 

 and twigs. A few species demand notice. 



Two of these, Leptostylus Mustus Lee., and Hyperplatys maculatus 

 Hald., are closely allied Lougicorn beetles, and belong to a group of 

 that family, all the species of which are wood- scavengers, feeding only 

 upon dead portions of plants. 



Leptostylus Mustus Lee. (Plate XIV, Fig. 2) is an ash-gray insect, with 

 a rather broad and flattened body, the upper surface of which is broken 

 by minute elevated points. The terminal third of the wing-cases is 

 darker in color, and this darker portion is separated from the remainder 

 by sharply defined lines meeting in a point upon the center line. 

 Length, 7.6 mm ( x % inch). The antenna are one- third longer than the body. 



The larvae are cylindrical, slightly flattened sawyers, having the first 

 joint of the body somewhat enlarged; the head is very small, and almost 

 concealed within the enlarged first joint; color pallid, except the jaws, 

 which are chitinous brown. 



The larva tunnels dead branches the wood of which is not too hard, 

 or excavates galleries under dead bark of the Orange, filling up the 

 passage behind it with tightly packed sawdust. It transforms to the 

 perfect beetle at the end of its gallery, in a cell-like cavity formed by 

 the movements of the larva in the surrounding mass of loose woody 

 fragments. 



The beetles appear in April and May, and there is a supplementary 

 brood in September, although the perfect insects frequently remain in 

 their cells all winter. 



Hyperplatys maculatus Hald. (Plate XIV, Fig. 3) is a somewhat smaller 

 beetle than the preceding, and its form is more slender and flattened. 

 The color of the body is ash-gray, spotted above with dots of velvet 

 black, and with, a large splash of the same on each wing-case near the 

 tip; the legs are black, variegated with red; the antennae are much 

 longer than the body, and are also variegated red and black. Length, 

 6 mm (-nnr inch). 



In its habits this beetle does not differ from Leptostylus biustus, and 

 the larvae of the two species resemble each other closely. 



* Further notes concerning the habits of this beetle will be found in an article by 

 Mr. E. A. Schwarz, in the Bulletin of the Brooklyn Ent. Soc., vol. VII, page 84. 



