stipes with a light brown median margin; apical outer seta situated on a 

 sclerite and basal seta longer, situated on the membrane; maxillary palp 

 and galea with thin, light yellow sclerites; mentum brownish, with a pointed 

 median process; sclerites of labial palpifer delicate, light yellow; setae 

 of ventral sclerites thin, light; labial palps small, adpressed to the ligula. 



FIGURES 623-627. P oly c e nt rop us f la vomacula tus Pict.: 



623 — part of frontoclypeus; 624 — left mandible, dorsal; 625 — maxillolabium; 626 — 

 pronotum; 627 — mesonotum. 



Pronotum (Figure 62 6) yellow, of the same form as in Plectrocnemia, 

 slightly longer, posterior margin black or brownish black; stripe of 

 posterior -angle process brownish, dashlike; a small blackish brown spot in 

 the middle of the lateral margin; anterior margin of sclerite light, lateral 

 aoc margin narrowly dark anteriorly. Dots reddish brown,not as distinct as on 

 the head. Two dots behind each other lateral to the suture in the middle. 

 Two dark transverse dots lateral to these dots, near the base of the median 

 seta; group of dots in the middle of each half of the sclerite forming a longi- 

 tudinal, slightly curved row, which continues posteriorly in a short curved 

 transverse row. Setae at the anterior margin of varying length, 15 or 16 in 

 number, reddish brown and yellowish; anterior -angle seta thick, dark, 

 shorter than the lateroanterior-margin seta; short, thin, light seta between 



491 



