222 PROC. ENT. soc. WASH., VOL. 22, NO. 8, NOV., 1920 



2, slightly inbent, then upbent and interrupted, below discocellular thicker, 

 down and inbent to inner margin, preceded from below vein 2 to inner mar- 

 gin by a broad purple shade; this shade suffusing with the shade beyond 

 discocellular; a marginal reddish line, interrupted towards apex, preceded 

 between veins 3 and 5 by a reddish spot. Hind wings semihyaline white; 

 a terminal fuscous shade, not reaching below vein 3. Fore wings below 

 paler, duller, showing the markings of upper side; the marginal line and spot 

 fuscous. Hind wings below as above. 



Expanse, 21 mm. 



Habitat. Paramaribo, Surinam. 



Type. Cat. No. 23831, U. S. N. M. 



(To be continued.) 



A NEW SCOLYTID BEETLE FROM TROPICAL FLORIDA. 



BY E. A. SCHWARZ, Bureau of Entomology. 



The rediscovery of the Scolytid genus Dendrosinns in our 

 fauna is the more surprising to me in view of my published opin- 

 ion (Proc. U. S. N. Museum, Vol. IS, p. 607, 1896) that such a 

 remarkable genus would long ago have been found had it occurred 

 here. But in view of the large number (more than 120 species) of 

 tropical arborescent plants now known to be at home in southern 

 Florida, it should now be expected that many tropical genera 

 of Scolytids hitherto supposed not to occur within our limits, 

 will be found. The true Dendrosinus globosus Eich. may yet be 

 rediscovered in our fauna and its retention in our lists is recom- 

 mended. 



In a recent clearing at Marathon, Vacas Key, Florida, a small 

 tree was encountered March 7, 1919, by H. S. Barber and my- 

 self, standing leafless in the burned area and harboring a -num- 

 erous colony of these remarkable beetles, most of them just 

 starting their galleries. Sections of the trunk and branches were 

 shipped to Washington, and through the kindness of Prof. S. J. 

 Record the wood has been identified as Bourreria havanensis 

 Miers (described as B. ovata Miers in Small's Flora of the Florida 

 Keys). The limited field examination possible in our short stop 

 in that locality disclosed no immature stages except that tw r o 

 eggs were found in sawdust -filled recesses along one of the deeper 

 galleries occupied by a pair of the beetles. A few old healed- 

 over galleries with entrance hole covered with from one to per- 

 haps four years' growth of wood were found but from none of 

 these had larval galleries been excavated. The fresh galleries 

 were short and usually contained two adults, probably a pair, 

 which when p'aced in an open vial would stridulate, producing a 



