Palpifer brownish, both setae situated on membrane, relatively large, 

 brownish, distal seta situated at anterior margin; median, small, light seta 

 situated in indentation. Maxillary palp conical, short; segment 1 with open 

 sclerite; sclerites of other segments circular. Galea cylindrical to base 

 of distal segment., Mentum reddish brown; anterior margin concave, with 

 lateral processes; ventral sclerites thin, rodlike, with a small, transparent 

 seta. Palpiger horseshoe -shaped, reddish brown; labial palp with brown 

 sclerite and large sensillae. 



Uio) 



669 



FIGURES 668 and 669. Odontocerum a 1 bi c or ne Scop, (after Nielsen): 



668 - head, dorsal; 669 - mouth parts: labrum (A), left mandible, dorsal (B),gula and 

 maxillolabium (C). 



Pronotum large, semicircular in cross section, yellowish, with broad 

 brown anterior margin, with pointed, projecting anterior -angle processes; 

 lateral margin narrow anteriorly, brownish, black posteriorly, connected 

 with broad black posterior angle; posterior margin in form of a narrow 

 brown stripe in middle, wide, pale yellow elsewhere, with rounded posterior 

 410 angles; posterior part of pronotum with light yellow posterior -angle 



processes lateral to black margin, and continued ventrally as narrow plates 

 which are fused in middle. Anterior margin with 5—7 dark brown, short 

 setae, several small setae among them; anterior-angle setae, one primary 

 seta, and a large group of short to small, secondary setae (22—2 5 according 

 to Nielsen), thinner and lighter than anterior -margin setae; 4 brown, 

 moderately long surface setae at posterior margin, one in middle, 3 laterally. 



514 



