OX=BEETLE AND RELATIVES. 



Dynastes tityus is over i .5 in. long. It is usually greenish- 

 gray with brownish or blackish spots scattered irregularly 

 over the elytra. The common name, Unicorn Beetle, is 

 scarcely correct, for the males have three horns on the pro- 

 notum, the ones on the sides curved and very short, the 

 median one with yellowish hair beneath, notched at the 

 tip, and projecting forward to meet a long, curved horn 

 arising from the head. The females have only a slight 

 tubercle on the middle of the head. It is a southern 

 insect, rarely seen even in southern New Jersey, for 

 example; I have found larva?, pupae, and adults abundant 

 in rotten wood in southern Mississippi. 



Stratagus ant<zus, the Ox-beetle, is an inch or more 

 long; shiny, dark reddish-brown, the male's pronotum 

 almost black. The male has one stout horn on each side 

 of the pronotum, and one on the front of the same 

 segment; the female has merely the front horn, much 

 reduced. 



Xyloryctes satyrus is also an inch or more long and 

 rather stouter than the preceding species. Its color is 

 also much like that of the preceding but the male, instead 

 of horns on the thorax, has a long, stout one on the head. 

 It is called the Rhinoceros Beetle, but this is confusing 

 as that name is applied more aptly to certain tropical 

 species. 



The Cetoniinae have the claws on each tarsus equal; 

 coxas conical, rather prominent; body rather flattened 

 above; the antennae are lo-jointed. In flying, these 

 insects usually "do not raise the elytra as most beetles 

 do, but the inner wings pass out from the side under the 

 elytra, which are a little narrower at the tips than the 

 base and do not at all embrace the sides of the body. 

 The members of this subfamily differ from the other 'leaf 

 chafers' in being for the most part flower beetles, the 

 mouth organs being furnished with a brush of hairs with 

 which they collect the pollen. They are therefore mostly 

 diurnal, flying about from flower to flower during the 

 heat of the day. At night and in cloudy or rainy weather 

 they are to be found beneath bark or other cover." 



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