THE CANADIAN ENTOMOLOGIST. 75 



at base. The abdomen is cylindrical, a little longer than the head and 



thorax united. 



"Brazil : Chapada, in April. Fourteen females, six male specimens." 

 Types in the Carnegie Museum, Pittsburgh, Pennsylvania. 



3. Trichaporits persimilis Ashmead. 



Ashmead, 1904, p. 512. 



" Trichoporus persimilis, sp. nov. 



'•' Female : Length, 2.8 mm. Metallic brown-black, punctate, the 

 abdomen brown beneath ; flagellum brown, hairy ; scape, pedicel and 

 legs, including the coxae, honey yellow, the femora more or less dusky or 

 brownish, especially basally ; otherwise it is very similar to T. viridicy- 

 aneus except that the first body segment of the abdomen is twice the 

 length of the second. 



" Brazil: Chapada, in April. Two specim.ens." 



Types in the Carnegie Museum, Pittsburgh, Pennsylvania. 



4. Trichaporus œneoviridis, species nova. 



Normal position. 



Female: Length, 1.8 mm. Average, moderate for the family. 



General colour bright metallic green, with a brassy sheen, the 

 scutellum with a purplish hue in certain lights. Legs pallid yellow, 

 including the apices of the coxœ ; tips of apical tarsal joints dusky ; 

 antennae dark, indefinite in colour, the scape paler yellowish, the pedicel 

 and ring-joint slightly paler ; venation indefinite, dusky yellowish. Eyes 

 and ocelli dark garnet, the latter moderately large, in a flat isosceles 

 triangle on the vertex, the distance between each about the same as the 

 distance between each lateral ocellus and the margin of the eye. 



Head (cephalic aspect) bilobed, longer than wide (dorsal aspect), as 

 wide as ihe greatest width of the thorax, five times wider than long 

 (cephalo-caudad), squamosely reticulated, the cephalic ocellus at the 

 extreme median apex of the vertex (cephalad), one-third *wider across the 

 eyes (cephalo-caudad) than at the median line of the vertex, which is 

 narrowed. Eyes ovate, half the length of the genœ, their surface much 

 rougher than that of the head. Antennae inserted below (ventrad) the 

 middle of the face, slightly above (dorsad) the ventral ends of the eyes. 

 Genal sulcus broad, distinct. 



Mesothorax, including axillae, scutum, scutellum and parapsides, 

 strongly shagreened, or squamosely reticulated, the pleura less so, 

 polygonally sculptured ; dorsum of the metathorax roughly reticulated, or 

 punctate, the median carina moderately strong. Abdomen closely, 



