Ventral seta dark brown, moderately long, strong, situated on a membrane 

 on the posterior quarter of the sclerite. A small light seta at the place 

 of sclerite "c." 



(411) 



FIGURES 581-583. Psychomyia pusilla Arb. Pupa: 



581 - right mandible, dorsal; 582 — anal appendages; 583 — part of 

 membrane of pupal case with openings. 



Claw (Figure 580) with broad basal part and a wide membranous trans- 

 verse stripe; apical part of claw strongly curved, with 5 massive, long 

 pointed spines ventrally; outer 2 spines of this group slightly smaller 

 than the 3 median spines. Seta 1 situated dorsally, between basal and apical 

 part of the claw; seta 6 situated on the outer side and 3 seta situated 

 medially; seta 2 absent; setae 5 in the basal part on the outer side and 4 on 

 the inner side; all yellowish, thin and small; ventral seta 8 straight and 

 light, relatively long; seta 7 very small; a pit situated near it, near the 

 ventral margin of the sclerite. 

 411 Pupa. Length 4.3— 4.8 mm. Antennae filiform, moniliform at the end, 

 reaching abdominal segments 6—7; first antennal segment thicker but not 

 longer than the following segments, with several small setae. Anterior 

 angles of labrum with 5 thin yellowish setae. Mandibles (Figure 581 ) long 

 and more curved than in Tinodes; blade at base of apical filament 

 slightly convex, finely serrated; filiform ending sinuous; outer setae near 

 the base straight and short, of the same length; mandibles crossed at rest, 

 right mandible above the left. First segment of maxillary palps shorter 

 than the others; 2nd, 3rd and 4th segments of about the same length; 

 5th segment twice as long as preceding segments. 



462 



