502 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



tudinally oval, and converging toward the anterior angle, poste- 

 rior border of scutel smooth, as is the metanotum; all coxse 

 brown, front legs with their tibia, femora, and tarsi yellowish 

 white, with a dorsal brownish patch on the femora and tibiae ; mid 

 legs with femora and tibiae yellowish white except for a median 

 brown annulus on each, their tarsi yellow; hind legs with their 

 femora and tibiae brown, but white at base of femora and at base 

 and apex of tibiae, their tarsi yellowish white ; veins of the wings 

 yellowish, dusky at origin of stigmal vein; ovipositor slightly 

 exserted. 



This is on record as an American parasite of the cosmopolitan 



Diaspis rosce. 



Blastothrix Mayr. 



B. sericea Dalman. 



Female: mostly green, smooth, dull and sericeous; head 

 scarcely wider than the thorax, impunctate, antennae distinctly 

 separated at their insertion, which is below the front, scape com- 

 pressed, black, flagel dusky at base, sixth and seventh joints 

 pallid, apex obscure and compressed; thorax impunctate; legs 

 mostly fuscous, their knees white, hind femora green, tarsi white, 

 middle tibiae bi-annulate with fuscous; wings hyaline, stigmal 

 vein black : abdomen much shorter than thorax, obtuse, depressed 

 above, base and apex green, shining, disk obscure aeneous. 



Reared from Phenacoccus acericola parasitized by Baccha 

 fascipennis in New Haven, August, 1905 (W. E, B.). 



°B. longipennis Howard. 



Female: length 1.75 mm.; head greenish above, bluish 

 around the mouth; pedicel longer than first funicular joint, and 

 together with the club and first to fourth joints of the funicle, 

 black, fifth and sixth joints of funicle cream-white, club oval, 

 somewhat compressed and rather longer than the two preceding 

 joints combined; ocelli nearly equidistant; thorax above metallic 

 green, tegulae whitish, brownish at tip, pleurae bright green, 

 whitish at posterior border; anterior and posterior femora 

 metallic green, white at tips, median femora light brown, white at 

 tips and with a distinct dark patch beneath at the distal end, 

 anterior and posterior tibiae black with a greenish tinge, yellowish 

 at distal end and white at the proximal extremity, median tibiae 



