INSECUTOR INSCITI^ MENSTRUUS 79 



Head smooth, 1.1 times as long as wide,^ broadest behind 

 eyes and roundly narrowed to base ; postocular bristles pointed, 

 shorter than eyes, almost lateral in position; other cephalic 

 bristles minute. Eyes not protruding, slightly more than one- 

 third as long as head and alx)ut 0.6 as wide as their interval. 

 Ocelli anterior in position, the posterior pair widely separated 

 and much larger than anterior ocellus. Antennae of structure 

 normal to the genus, the sense cones arranged as in the geno- 

 type ; segment 1 concolorous with head ; 2 and 3 orange, the 

 latter lightly infuscate in apical portion ; 4—8 blackish brown, 

 yellowish at base. 



Prothorax about equal in length to head and (inclusive of 

 coxse) about 1.77 times as wide as long; one pair of long, 

 pointed bristles at posterior angles, others minute. Pterothorax 

 about as wide as prothorax. Fore wings with about seven ac- 

 cessory hairs and with the subbasal bristles very minute and 

 pointed. Legs short and stout, uniform orange yellow ; fore 

 tibiae not toothed on inner surface of apex ; middle and hind 

 tibiae with spurs long and stout ; fore tarsus with a large curved 

 tooth. 



Abdomen of normal structure ; tube 0.7 as long as head and 

 about twice as wide at base as at apex, sides sinuate and 

 abruptly narrowed at apex ; all bristles pointed ; terminal bris- 

 tles one and one-third times as long as tube. 



Measurements of holotype: Length 1.43 mm.; head, length 



0.198 mm., width 0.180 mm.; prothorax, length 0.192 mm., 



width (inclusive of coxae) 0.340 mm. ; pterothorax, width 



0.336 mm. ;'abdomen, width 0.360 mm. ; tube, length 0.140 mm., 



width at base 0.071 mm., at apex 0.035 mm. 



Antennal segments :,1 2 3 4 5 6 7 8 



Length (fx)... 42 51 49 48 47 48 48 49 



Width (|x)... 40 34 36 35 30 26 21 13 



Total length of antenna, 0.382 mm. 



Male ( macro pterous). — Length about 1.3 mm. Smaller and 



'In the original description of P. antennatus the length of the head is erro- 

 neously given in the paragraph of measurements as 0.32 mm. instead of 0.22 mm. 

 The proportionate length and width of the head given in the description proper 

 is correct. 



