SUPERFAM. ELENCHOIDEA 



Elenchoidea Pierce, Proc. Ent. Soc. Wash. Vol. 9, p. 76 (190S); Bull. U. S. Nat. Mus. no. 66, 

 p. 164 (1909). 



Characters. — Male. — Tarsi two-jointed. 



Female. — Tubercles of head more or less obsolete, ventral. Only three genital tubes entering 

 brood-canal. Metathoracic spiracles not usually discernible, never prominent. 



FAM. ELENCHID^ 



Homopterobias. Saunders, Trans. Ent. Soc. Lond. p. 48 (1872). 



Elenchinae. Perkins, Rep. Exp. Stat. Hawaiian Sugar Planters' Ass, Bull. 1, Pt. 3, p. 99 (1905). 

 Elenchidas. Pierce, Proc. Ent. Soc. Wash. Vol. 9, p. 77 (1908); Bull. U. S. Nat. Mus. no. 66, 

 pp. 164, i65 (1909). 



Characters. — Male. — Antenna; five-jointed, the third laterally produced, the fourth and fifth 

 elongate. Tarsi two-jointed. 



Female. — Same characterization as for superfamily. 



TABLE OF GENERA (Males) 



ia. Mouth parts consisting of mandibles and two-jointed maxillae. 



2a. Species large ; first antennal joint elongate, second very short and 

 transverse ; frontal process not prominent ; oral cavity broad, 



semicircular 1. Genus Deinelenchus, Perkins. 



2b. Species small ; first two antennal joints subequal; frontal process 

 prominent ; oral cavity triangular; icings having five primary 

 veins from base, with one distal detached vein between the radius 

 and medius, and two brief basal veins 1 epresenting the cubitus 



and first anal 2. Genus Elenchus, Curtis. 



lb. Mouth parts consisting of mandibles, and two jointed maxillae, bearing 

 on the first joint an elongate, knobbed, linear, chilinous filament; 

 species small; oral cavity triangular ; wings as in Elenchus, but 



without traces at base of cubitus and first anal 3. Genus Mecynocera, Pierce. 



ic. Adult male unknown ; described from puparium 6. Genus Colacina, Westwood. 



