352 HETEROMERA — MORDELLIDAE. 



black, legs yellow, posterior femora rather dark and with 

 pubescence somewhat closer. L. 1 1. Common. 



A. ruficollis, Fab. 



II, Whole of head reddish-yellow. 



Oblong. Black or dark brown ; base of antennae, whole 

 of head, thorax and front pairs of legs reddish-yellow, 

 posterior legs brown, with femora darker ; pubescence fine, 

 gray. L. 1^ 1. Moderately common. 



A. thoracica, Lin 



6. Elytra entirely yellow. 



Eed-yellow, slightly pubescent, shiny ; eyes and apex of 

 antennae black. L. 1| 1. Not uncommon. 



A. suhtestacea, Steph. 



c. Elytra yellow-brown, with dark spots. 



Elongate. Yellow-brown ; apex of antennae, eyes, 

 breast, and abdomen black ; elytra with two dark spots on 

 each, and a third common one behind middle ; pubescence 

 rather close, gray. L. 1;^ 1. Common. 



A. melanopa, Forst. 



BHIPIPHOBIDAB, 



Mentum slender, confused with ligula ; labial palpi ap- 

 parently consisting of a single elongate, spindle-shaped 

 joint ; last joint of maxillary palpi very long, curved, 

 truncate at apex ; maxillary lobes rudimentary; mandibles 

 not toothed on inner-side ; vertex of head depressed, 

 scarcely more prominent than anterior margin of thorax, 

 eyes oval ; antennae of male with two, of female with one 

 process to each joint from third onward ; thorax longer 

 than broad ; elytra imperfectly covering abdomen, gaping ; 

 intermediate coxae nearly contiguous. Metoecus, Gerst. 



Metoecus, 



Black ; sides of thorax and abdomen yellow-red ; elytra 

 of male wholly or partly yellow. Sides of thorax straight 

 and convergent forward, disc with a deep central furrow, 

 abbreviated in front, base produced in middle, posterior 

 angles promiuent. L. 3^ — 4:^ 1. Not common. 



M. paradoxus, Lin. 



