LIST OF HOMOPTEKOUS INSECTS. 



17. Ptyelus adustus. 



Ferruginous ; caput niyro triguttalum ; fades ad discum picea ; 

 abdomen piceum, hasi apiceque testaceum ; ala anlicte fusc<B, 

 fulvo nebutosie. 



Ferruginous, shining: head and chest flat, thickly and mi- 

 nutely punctured, covered with taWny down, slightly shining: head 

 concave along the hind border, more convex in front, with three 

 black dots near together on the fore border; face pitchy and flat 

 on the disk, tawny and slightly shelving on each side, which has 

 eight or nine oblique, very shallow cross ridges ; epistoma keeled : 

 mouth pitchy, ferruginous at the base: feelers black, pale yel- 

 low towards the lips : chest slightly impressed on each side in 

 front: abdomen pitchy, testaceous at the base and at the tip: 

 fore-wings brown, thickly and indistinctly mottled with tawny, 

 narrow and conical towards the tips: hind-wings colourless with 

 pale brown tips; veins black, pale yellow at the base. Length 

 of the body 34 — 4 lines; of the wings 9—10 lines. 



Var. g. Brown on the tips of the hind-wings very indistinct. 



a. Congo. Presented by Sir J. Richardson. 



A, c. ? 



Var. 0. Lwridus ; fades picea ; pectus piceo bimaculaium ; abdo- 

 men basi piceum; pedes fulvi; femora basi piceo vitlata. 



Lurid, shining : head and chest flat, thickly and minutely 

 ])uuctured, covered with tawny down : head concave aloug the 

 hind border, more convex in iront ; its length full one-fourth of 

 its breadth ; face mostly pitchy, flat on the disk, slightly shelving 

 on each side ; epistoma very slightly keeled : tip of the mouth 

 l)l;>ck : breast with a large pitchy spot on each side ; abdomen 

 pitchy towards the base : legs tawny ; thighs with pitchy streaks 

 towards the base : fore-wings pale lurid, covered with tawny 

 down : hind-wings almost colourless ; veins black. Length of the 

 body .34 lines ; of the wings 8 lines. 



«, b. Sierra Leone. Presented by the Rev. D. F. Morgan. 

 c. West Africa. From Mr. Fraser's collection. 



