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



Club 3-jointed; stigmal vein present, marginal cilia of wings 

 shorter than or about as long as first joint of anterior tarsi, 

 marginal vein as long as or longer than the submarginal; 

 flagel subcylindrical; hind tibiae not flattened, and with a 

 row of short bristles above, but normal. . Coccophagus p. 488 



Coccophagus Westwood. 

 Key to Species. 



1. Females : wings hyaline 2 



Males 



2. Mostly black 1 ; hind border of dorsum of thorax black, head 



not coarsely punctulate 3 



Mostly moderately bright yellow; tip of scape and all of 

 flagel, border of pronotum, tip of tegulae, border of meta- 

 notum, and incomplete bands between abdominal seg- 

 ments, fuscous, as are the veins of the wings. Length 8 

 mm fletcheri 



3. Tegulae black 4 



Tegulae brown; nearly all of scutel and postscutel yellow. 



Length 1.3 mm flavoscutellum 



4. Scutel with apical half yellow 5 



Scutel yellow only at tip, all tibiae brown, except a yellow 



area at either end. Length 0.78 mm fraternus 



5. Punctures of dorsum of thorax arranged in longitudinal rows; 



front and middle tibiae yellow. Length 1 mm lecanii 



Punctures of dorsum of thorax not arranged as in lecanii; 

 all tibiae dark. Length 1.2 mm cognatus 



6. Body entirely black; mesonotum, exclusive of the scapulae, 



sparsely punctate, hind edge of mesonotum not bordered 



by a regular row of round punctures 7 



Body not entirely black, but mostly brown; scutel tipped with 

 yellow; mesonotum, except scapulae, irregularly sparsely 

 punctate. Length 0.6 mm cognatus 



7. Tegulae brown, all tibiae and tarsi yellow; hind tibiae occa- 



sionally with a dusky patch near base. Length about 0.5 



mm 8 



Tegulae black, all tibiae dark brown in the middle and whitish 

 at either end. Length somewhat less than 0.78 mm. fraternus 



8. Scutel dark lecanii 



Scutel usually entirely black, sometimes yellow at extreme 



tip flavoscutellum 



C. fletcheri Howard. 



Parasitic upon Lecanium fletcheri. 

 C. cognatus Howard. 



Listed as an American parasite of Lecanium fletcheri, L. hes- 

 peridum, L. cerasifex and L. pcrsiccv. 



