(31?: 



3. Drusus discolor Rambur 



Ulmer, 1903:71-73, Figures 3, 51; 1903a:90— 93, Figures 1-5. - Thiene- 

 mann, 1905: Plate 17, Figure 25. - Steinmann, 1907-1908:89. - Ulmer, 

 1909:269, Figure 407, a, b, c, d, e.— Dohler, 1914:46, 51, Figure 21.— Lestage, 

 1921:814-822, Figure 295, a, c, g, h. 



Full-grown larva. Length 10—12 mm. Head and thoracic sclerites 

 shining brown. Frontoclypeus with large, dark dots posteriorly, arranged 



FIGURES 551-553. Drusus d i sco 1 or Ramb.: 



551 - head, dorsal (A) and ventral (B), labrum and its branched setae (C); 552 - pronotum (A), 

 mesonotum (B),tergites and metapleuron of metathorax (C); 553 — prothoracic horn and 

 chaetoids near it. 



399 



