AitT. 14 TERMITES FROM AMAZON BASIN SNYDER 27 



nasus; aduncus differs froiii maximus Holmgren in its more robust, 

 aquiline nasus, dense hairs on the tergites, but fewer hairs on the 

 head. 



Worker. — Head castaneous-brown, T-shaped, hyaline marking 

 connecting median line and fontanelle. Antennae light yellow- 

 brown, 14 segments. 



M easuremen ts. — 



Length of entire worker, o.oO-U.OO mm. 

 Length of head, 2.25 mm. 

 Width of head, 1.80 mm. 



-:V. (iV.) aduncus is in the group with large workers (as maxhnus 

 and sunnatiiensls) . 



Type ?06'«?/%.— Rurrenabaque, Bolivia. 



Described from a series of soldiers collected with workers at the 

 type locality by Dr. W. M. Mann in October, 1921. 

 ^ Tyj)e, soldier.— Cat Xo. 27652, U.S.N.M. 



NASUTITERMES (Nx\SUTITERMES) AURANTIACUS Holmgren 



Queen. — Head castaneous-brown, with reddish tinge, with dense 

 long hairs. Fontanelle a raised subelliptical spot on vertex. Post 

 clypeus slightly lighter colored than head, slightly over twice as 

 broad as long, with long hairs. Eyes black, not round, projecting, 

 not distant from lateral margin of head. Ocellus small, suboval, 

 separated from eye by a distance equal to the long diameter of an 

 ocellus. 



Antenna yellow-brown, broken (10 segments), segments become 

 longer and broader toward apex, with long hairs; third segment 

 short and narrow, ring-like, shorter than second or fourth segments; 

 fourth shorter than second segment. 



Pronotum about same color as head, saddle-shaped, sides slope 

 obliquely to posterior margin which is emarginate, with dense long 

 hairs. 



Legs yellow, with tinge of brown, with long hairs. 



Abdomen with tergites castaneous brown, with grayish tinge, faint 

 -piracular markings and dense long hairs; cerci not very prominent. 



M easuremen fs. — 



Length of entire qneen, 19.00 mm. 

 Length of head (to tip Inbrum), 1.25 mm. 

 Length of pronotum, 0.60 mm. 

 Length of hind tiliia, 1.10 mm. 

 Diameter of eye (long diameter). 0.275 mm. 

 Width of abdomen of queens, 4.00 mm. 

 Width of head, 1.00 mm. 

 Width of pronotum, 0.85 mm. 



