726 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxiii. 



about 0.60 mm. ; width of tube at anterior end, about 0.098 mm., at 

 posterior end, about 0.047 mm. General color dark brown ; abdomen, 

 except toward base and at tip of tube, black. 



Head between one and one-fifth and one and one-sixth times as 

 long as it is wide; somewhat widest just behind the eyes, nearly as 

 wide at the posterior end, squarish in front ; cheeks nearly straig-ht, 

 slightly bulging, set with scattered small, stout spines borne upon 

 small warts; frons slightly elevated between the bases of the 

 attenna?; post-ocular bristles present and of good length, acute. 

 Eyes small, finely faceted, not pilose, rounded, black by transmitted 

 but dark red by reflected light ; ocelli present, well separated, placed 

 far forward on the head, distinctly larger than the facets of the 

 eyes. Mouth cone reaching nearly to the posterior edge of the pro- 

 sternum ; labium broadly rounded at the end ; maxillary palpi two seg- 

 mented, the basal segment very short and rounded. Antennae eight 

 segmented, with joints all distinct; nearly one and three-fourths 

 times as long as the head. Relative lengths of segments as follows: 



A ^ _L ^ ^ -^ 7 8 

 10 14 24.2 24.9 22 16.3 11.4 9 



Segment one cylindrical, truncate; two constricted toward base 

 into a broad stalk, cut oif squarely at end; three to six clavate; seven 

 cylindrical ovate; eight conical. Color of one and two brown, the 

 latter lighter toward the apex ; three yellow ; four yellowish brown at 

 base, shading into darker brown toward the apex; five brown, light- 

 est at base; six, seven, and eight very dark l)rown. Sense cones fairly 

 long ; spines, for most part slender and weak. 



Prothorax about three-fifths as long as the head; fore coxse pro- 

 jecting considerably beyond posterior angles and forming what ap- 

 pear to be the prominent sides of the prothorax. On account of the 

 dark color of the type specimen it is difficult to make out exactly 

 where the prominent spines are placed on the pronotum, but it is 

 certain that there is one on each side, somewhat removed from the 

 middle line, close to the anterior margin ; there is also a very promi- 

 nent one on each posterior angle ; somewhat in front of the hind mar- 

 gin, about half way from the corner to the middle line on each side 

 is still another; yet another is situated on each side somewhat in 

 front of the middle and well toward the side margin ; almost directly 

 in front of this, on each side somewhat back from the front margin, 

 another is noticeable. Mesothorax distinctly wider than the pro- 

 thorax. Pterothorax concolorous with the prothorax, somewhat 

 lighter than the head. Mesoscutum, metascutum, metascutellum, and 

 pleurae somewhat reticulated. Legs rather long and slender, the mid- 

 dle pair much the smaller; each fore coxa bears a single long and 

 rather stout spine on its outer side; fore femora rather strongly en- 



