MELOIDAE. 419 



mandibles are acute, and extend beyond the l;ibrum ; outer lobe 

 of niaxillEe not elongated. Prothorax elong-ate. Elytra very 

 small, and wings wanting in Hornia ; dehiscent, with perfect 

 wings in the foreign genera. Claws cleft as usual in the foreign 

 genera, simple in Hornia. 



Hornia minvtipennis Riley, parasitic on Anthophora sjyouKa, 

 is the only representative in our fauna. The abdomen is very 

 large in both sexes, and with a double scries of corneous plates 

 in the %, or entirely membranous 9. From the large abdomen 

 and small elytra it was at one time considered a Meloine. It 

 occurs in the Atlantic region. 



Sub-Trilie 4.— Mylalbrilii. 



Head moderate in size, frontal suture distinct, clypeus slightly 

 prolonged beyond the insertion of the antennae; labrum distinct; 

 eyes oval or transverse ; antenna? short, joints closely articulated 

 and gradually broader externally ; mandibles not prominent; 

 lobes of maxillffi not prolonged ; elytra entire, contiguous along 

 the suture; tarsal claws variable in form. Body winged. 



This tribe differs from the next by the structure of the antennae. 

 The joints are closely placed, and together form an elongate club 

 more or less arcuate. In foreign genera the claws are cleft, the 

 two divisions equal. In tlie only representative in our fauna, 

 Cordylospada FuUe7'i Horn, the under portion of the claws is 

 shorter than the upper, and connate with it, the suture, however, 

 distinct. The antennte have but eight joints, the terminal joint 

 being an elongate mass, equalling in length the four preceding 

 joints; composed, probably, of four joints without traces of sutures 

 dividing them. 



The species occurs in Nevada. 



Siil)-Trilii^ 5. — Cantliarini (gcnniui). 



Head variable inform; front with a ver}^ distinct transverse 

 suture, prolonged beyond the insertion of the antcnnte; the eyes 

 are transverse and sul)reniform, except in Phodaga, where they 

 are regularly oval ; the antennae are variable in form, but inserted 

 in front of the eyes, except in Phodaga and Eupompha, where 

 tliey are situated between the eyes; the mandil)les are thick, and 

 obtuse, rarely (Phodaga) emarginato at tip ; the palpi vary in 



