404 



very obtuse-angled triangle, and bounded by a well defined impressed line. Eyes 

 slightly hairy; facial depression narrow, deep; a rather broad, transverse, pearly- 

 white band extending from facial depression to border of eye. This has the appear- 

 ance of a structural character, and is probably generic in value, though it may be 

 only specific, llnlh of antennie distinctly separated from scape. Antenna as a 

 whole clavate. Pedicel as long as broad, funicle joints 1 to 4 increasing slightly in 

 length, considerably in breadth; club ovate, as long as two preceding funicle joints 

 together and distinctly 3-jointed. Basal joint nearly as long as the other two 

 joints together, the terminal very short, very thin, and pointed. Sclerites of notum 

 of thorax as indicated in the figure. Metascutum with central longitudinal furrow 

 widening anteriorly. Abdomen flattened, concave above, ovate in shape. Post- 

 marginal vein of forewings longer than stigmal. Stigmal rather long, descending 

 into the disc at an angle of about 45*^. Club distinctly spurred. 



Male: Eesembles female, except that the abdomen is narrower, with subparallel 

 sides. Stigmal club is larger, and the facial band is broader. The funicle joints of 

 antenn;e are prolonged above into rounded teeth, as indicated in the figure, the 

 hairs on the funicle joints being considerably longer than on the corresponding 

 joints of the female. 



Leucodesmia typica u. sp. 



Female: Length, 1.5"""; expanse, 3.4™"' ; greatest width of forewing, .42"^"\ Head 

 faintly shagreened, pronotum, mesoscutum and disk of mesoscutellum granulate, 

 mesoscutum more coarsely than mesoscutellum ; metanotum and abdomen smooth ; 

 mesopleura faintly shagreened. Head dusky yellow ; face with a transverse pearly- 

 white band bordered with jet black above and below, interrupted in the middle by 

 the facial depression. Scape of antenna} yellowish, with a faint dusky band in the 

 middle. Pedicel black, flagellum dusky yellow with black hairs. Thorax dusky 

 yellow with teguhe darker ; metanotum black. Abdomen black. Front legs dusky, 

 middle and hind legs nearly black, yellow at joints; tarsi yellowish. 



Male : About the same size as the female; general color darker; head darker, with 

 white transverse band efface broader. Basal half of bulb of antenna white, apical 

 half dark, facial depression with a light center. Abdomen with a large yellow- brown 

 or semitransparent spot at base. 



Described from many male and female specimens reared from Da- 

 l-ruma coccidivora, preying upon Lecanium tuUp[fer(v collected at Cres- 

 cent City, Fla. Issued at Washington April 11 and 12, 1895. 



THE HORSE-RADISH FLEA-BEETLE. 



{rjiyllotreta armoracia' Koch.) 



By F. H. ClIITTEXDEN. 



Another injnrions European insect has been introduced on this con- 

 tinent, and although its exact economic status can not yet be defined 

 its advent among us should be regarded with distrust. 



During August, 1893, the writer obtained from the withered leaves 

 of a plant that grew in one of the numerous vacant lots within a quar- 

 ter of a mile of the grounds of the Columbian Exposition a few speci- 

 mens of a little llea-beetle of the genus Phyllotreta entirely different from 

 any hitherto known to occur in Xorth America. These specimens agree 

 perfectly with Weise's description of Phyllotreta armor aciw (Erich- 



