XX.xii, '21] ENTOMOLOGICAL NK\YS 275 



notum, simple, without sutures. Mc.\-.isl.'nii/in simple, a deep suhmar- 

 ginal suture dividing off the pleurae for about one-half their length. 

 M I'hnntium about one-half length of pron '.im. sinuate posteriorly and 

 divided in two by a sinuate cross suture; >r part longer than 



posterior; lateral pieces (acetabula) for the coxae running back half 

 way of the second abdominal segment. Mctustcnini" 



Abdomen: Slightly longer inclwb'- 1 segment, than wine 



( $ ) ; not quite a^ long (including genital a'-dominal segment) as 

 wide ( 9 ) ; connexivum wide, so refl iractically vertical; 



six abdominal segments visible dorsally and seven sternally. exclusive 

 of the genital segment; 6th abdominal :;t ( ? ) beneath emarginat.- 



trapezoidally posteriorly to receive 7th segment; 7th segment twice 

 as long as any of the others, roundedly emarginate to receive cylin- 

 drical genital segment; all other segr : iort and ringlike and sub- 

 equal in length, ('.cultal scf/incnl ( t ) cylindrical, rounded terminally, 

 slightly longer than broad, as long as the four terminal abdominal 

 segments taken together; beneath with a rounded operculum through 

 which the genitalia show as two rounded protuberances, one in front 

 of the other. Seventh abdominal segment ( 9 ) long and broad, be- 

 neath emarginate trapezoidally posteriorly to receive genital segment : 

 all other segments short and ringlike and subequal in length. Genital 

 segment ( 9 ) narrow, roundedly triangular with a keel-like longitudi- 

 nal slit and a knoblike apex. 



Legs: Anterior femora moderately stout, unarmed; tibiae one-quar- 

 ter longer, more slender. Intermediate femora to tibiae as 7 to 9 in 

 length, slightly stouter than tibiae, covered with short stout hair-, 

 spine-like in middle leg, longer spinous bristles at ends of joints. Two 

 stout spines at distal end of femur. Anterior funora only present in 

 type; other joints of legs described from the type series specimens. 



Color: Head somewhat flavous or rbrKer with blackish pattern, cov- 

 ered with long silvery grey pubescence, the 6 setigerous loci shining 

 black. Prothorax black, middle flavous and anterior margins broadly 

 slate grey. Mesothorax black, a broad slate-grey stripe, and pleura 

 and sterna all slate grey; a double line of black snots running down 

 the tergum, rather linear on the posterior margin of the abdominal 

 segments; 5 genital segment p'eeous ; two round black spots on the 9 

 genital segment, the extreme knob of which is piceous. Abdomen be- 

 neath the same colors, except that the black markings are more linear 

 and placed on ihe posterior margin of each segment, widest on the 

 nth and disapp on Ihe firsl and - -ond : the last (7th) segment 



is broadly ro ndedly black in Milarly black medially 



in 9. Edges of genital Moment bhe!: in 9 ; black in $. 



The general ground color is black, body pui silver nd 



long particularly on the rostrum, or slaty grey and velvety. 



Dimensions: Type long, 4.4 mm.; hit., 2.2 mm. Allotype long, 5 

 mm. ; lat., 2.7 mm. 



