TWO NEW MYRMECOPHILOUS APHIDES FROM ALGERIA. 



29 



The marked characters of this genus are the antennae and 

 the projecting long proboscis. 



The viviparous apterous female only known. 

 Found in company with ants. 



Rectinasus buxtoni, nov. sp. 

 Apterous viviparous female. — Ochreous yellow to pale yellow and 

 almost pearly white, pubescent ; legs and antennae brown ; proboscis 

 black at the apex, brown to nearly the base in some, paler in others. 

 Eyes black. Frons more or less porrected. Vertex convex to flat, 

 broad, hairy. Antennae of five segments, the two basal ones small, 

 of nearly equal length, the basal one somewhat the wider, the apex 



Rectinasus buxtoni, nov. sp. 

 A. Head of apterous viviparous female ; a, antennte ; a^, joint of first and 

 second segments, showing spines a^ ; a^, apex of antenna ; b, eye ; c, labium ; c^, 

 maxillffi ; c^ and c^, mandibles ; d, proboscis. B. Variations in head a, b, and c. 

 C. Lateral tubercle. D. Labrum, d^ apex further enlarged. 



of the first and base of the second with a small dark, blunt, median 

 projecting process, pointed towards one another, third segment long, 

 fourth short, but longer than the second, fifth as long as the third, 

 ending in a short, blunt nail, a small round sensorium at the apex of 

 the fourth and a peculiar shaped one at the base of the nail on 

 the fifth ; all the segments hairy, in some the antennae are nearly as 

 long as the proboscis, in others shorter. Proboscis carried at a 

 marked angle to the body, bent near the base, acuminate, the apex 

 of the last segment, which is long and thin, black, hairy ; setaceous 

 mandibles and maxillae long ; labrum moderately long, porrected, base 

 with some hairs. The proboscis varies in length, usually about two- 

 thirds the length of the body, but may be longer. Frons often porrected. 



