124 THE CANADIAN ENTOMOLOGIST. 



female of moderate width, parallel. Antennae and proboscis yellow. 

 Thorax bright shining green ; humeri and a slender line reaching to the 

 root of the wings, and the sides of the metanotum broadly, light yellow ; 

 pile of dorsum and mesopleurae yellow. Abdomen in the male pedicil- 

 late, the second segment cylindrical, in the female moderately contracted 

 toward the base ; black, with a bronze lustre ; second segment in the 

 female, except the lateral margins, yellow ; the posterior angles of the 

 third and fourth segments narrowly yellow ; in the male the second seg- 

 ment is obscure yellow ; pile golden. Legs, including the coxse, yellow. 

 Wings nearly hyaline. 



Two specimens, Virginia (TheOo Pergande) and North Carohna 

 (Prof Comstock). 



Ptecticus Sackenii, n. sp. 



\_Ftectictis testaceus Osten Sacken (non Fabr.), Cat. Dipt. 45 ; Lynch 

 Arribalzaga, Catalogo, etc., 125 (17).] 



$ . Length 1 1 mm. Front narrow, shining black, the lower part 

 and the face yellowish white. Thorax yellow, the dorsum with three 

 broad, more brownish, stripes. Abdomen reddish yellow, the second, 

 third and fourth segments with a black fascia, acute at each end and not 

 reaching the lateral margin. Legs yellow, the hind tibiae brownish, becom- 

 ing black at distal end, hind metatarsi black, the following joints nearly 

 white, last three joints of front tarsi blackish, of middle tarsi brownish, 

 the third joint of all these tarsi less dark. Wings hyaline, with a light 

 yellowish tinge. 



A specimen from Florida (Pergande) agrees with the ones men- 

 tioned by Baron Osten Sacken in the note on page 45 in having the four 

 last joints of the hind tarsi yellow, the terminal ones not being black, as 

 described. Lynch says in regard to these species (1. c.) : " Los ejemplares 

 de Nueva York de que habla Osten Sacken deben pertenecer a otra ; 

 todos los mios tienen los tarsos posteriores como los describe Rondani." 



Ptectictis similis, n. sp. 



^, ^. Length 11-12 mm. Head and antennas wholly yellow, the 

 frontal tubercle below prominent, the small ocelliferous tubercle black. 

 The front in the female narrow ; in the male the eyes nearly contiguous 

 above the tubercle. Thorax yellowish amber color, the humeri, postalar 

 callosities, the sutures narrowly, and a large spot on the sides of the meta- 

 notum, light greenish, two linear strij^s on the back part of the dorsum, 



