608 THE BOTHRIOTHOEACINE INSECTS— HOWABD. volxvii. 



BOTHRIOTHORAX VIRGINIENSIS, Howard. 



Bothriothorax virginiensis, Howard, Bull. 5, Div. Entora., U. S. Dept. Agric, 1885, 

 p. 20. 



Female. — Length, 1.G3 mm.; whig expanse, 3.96 mm.; greatest width 

 of fore wing, 0.69 mm. Face and vertex with large, round, thimble-like 

 l^unctures, each with a central umbilicus, becoming sparser on lower 

 face and more elongate. Cheeks also faintly shagreened; xjunctation 

 of mesoscutum more irregular than on vertex, individual punctures 

 elongated and more or less irregular; mesoscutellum like scutum? 

 except that it is aciculate at base. Abdomen smooth; pleura smooth; 

 eyes faintly hairy; antenna? regularly, clavate; pedicel longer than 

 first funicle joint, which is a little longer than broad; remaining 

 funicle joints increasing slightly in width and in length ; club slightly 

 longer than sixth funicle joint. Color metallic greenish black ; antennae 

 jet black; all coxiB metallic; all femora metallic, brownish at tip; front 

 and middle tibite brownish yellow, hind tibite greenish black ; all tarsi 

 yellow; wing veins light brown. 



Described from one female specimen collected September 18, 1881, at 

 Arlington, Va. Type in the U. S. National Museum. 



BOTHRIOTHORAX PECULIARIS, Howard. 



Bothrioihorax jiecaliaris, Howard, Bull. 5, Div. Entom., U. S. Dept. Agric, 

 1885, p. 20. 



Female. — Length, 1.75 mm.; expanse, 4.25 mm.; greatest width of 

 forewing, 0.7 mm. Axilla? meet at tips, face uniformly punctate, cheeks 

 behind genal sulcus impunctate, faintly shagreened; punctures of 

 mesonotum supplemented by faint granulation; scutellum nearly smooth 

 at tip, faintly emarginate; teguh^ faintly granulate, abdomen and 

 pleura smooth. First funicle joint of antennae somewhat shorter than 

 pedicel; funicle joints subcylindrical, increasing in diameter from one 

 to six ; joint six as thick as long; club as long as three jjrecediiig funicle 

 joints together, much flattened and sharply, somewhat obliquely, trun- 

 cate at tip. General color blue green; basal half of antennal scape 

 honey yellow; distal half black above, yellowish below: flagellum 

 black with green luster; middle and hind femora honey yellow; front 

 and middle tibiii3 honey yellow; hind tibite black; all tarsi honey yel- 

 low; wing veins light brown. 



Male. — Antennae much longer and more slender than those of female; 

 pedicel twice as long as thick; joint one of funicle three times as long as 

 thick, and one-third, or a little more, longer than pedicel; other funicle 

 joints subequal in length, about as long as pedicel, well separated 

 and increasing slightly in thickness; club flattened, very obliquely 

 truncate, and nearly as long as two preceding funicle joints together; 

 all joints clothed with short, close hair. In coloration similar to 

 female, except that the autennte and front femora are honey yellow 

 throughout. 



