SUGAR-CANE INSECTS. 201 



Rhabdocnemis obscurus Boisduval. 



(Hawaiian Sugar-Cane Borer. Calandridse ; Coleoptera.) 



Hosts: Banana, sugar cane, coconut, sago palm, royal palm, wine palm (Caryota 

 urens), papaya {Carica papaya). 

 Injury: Very injurious to the stalk. Liable to importation in seed cane. 

 Description and biology: Adult weevil reddish brown with darker brown markings, 



Fig. 96. — The Hawaiian sugar-cane borer {Rhabdocnemis obscurus [Sphenophorus]): 1, Eggs, natural size. 

 3, Eggs in situ, much enlarged: a, Section of egg passage with egg, c; b, egg placed unusually near the rind, 

 d. S, Larvae, just hatched and older, natural size. 4, Full-grown larva, naturai size. S, Larva, side 

 view, enlarged: a, Spiracles; 6, cervical shield. 6, Larva, front view, enlarged. 7, Pupa, enlarged 

 a, Rostrum or beak; b, antenna; c, elytron or wing cover; d, folded wing. 8, Pupal case or cocoon, 

 enlarged. 9, Adult, enlarged. (Terry.) 



long beak, elbowed antennae, over 0.5 inch long. Pupa white, in cocoon of fiber. 

 Larva white, curved, legless. Bores in the stalks and roots. ' (See text fig. 96.) 



Distribution: Hawaii, Jamaica, Barbados, St. Kitts, Antigua, St. Lucia, British 

 Guiana, Fiji, New Guinea, New Ireland, Tahiti, Queensland, Malay Archipelago. 

 Van Dine, D. L. U. S. Dept. Agr., Bui. 93, 1911, pp. 35-40. Figs. 4, 5. 



