AMERICAN COLEOPTERA. ., 151 



Mormolyce is in particular one of those genera with unusual develop- 

 ments. These are the margining of the thorax and the leaf-like expansion 

 of the eljtral margin. If we dismiss for a moment from our consideration 

 these appendages and allow Mormolyce to stand as if deprived of them 

 it becomes reduced to an insect not very diiFerent from an Odacanthide 

 or a Ctenodactylide. 



The elongate head, with the extremity of the neck dilated in a semi- 

 globular manner, the narrow thorax, the elytra not margined at base, 

 the dorsal punctures all on the third interval, are characters which 

 cannot be neglected. 



The ligula and paraglossae of Mormolyce are said to be as in the 

 Thyreopterides but from the descriptions these organs vary in that 

 group, and in the present genus I do not find as much resemblance 

 to Eurydera as to Coptodera serata (84). 



I would suggest that Mormolyce be constituted a distinct tribe to be 

 placed in the vicinity of the Odacanthini and Ctenodactylini. 



Tribe XXXII.— Agrini. 

 Antennae slender, moderately long, arising under a slight frontal plate, three 

 basal joints glabrous, first joint moderate in length, slightly arcuate near the base, 

 second short, third longer than the following which are subequal in length. Head 

 elongate, prolonged behind the eyes and suddenly constricted to a neck which 

 forms a seraiglobular condyle, front with two supra-orbital setse. Clypeus moder- 

 ately prolonged, a setigerous puncture each side. Eyes moderately prominent, 

 close to the mouth beneath. Labrum moderately prominent, nearly square or 

 slightlj' transverse, sexsetose in front. Mandibles slightly prominent, feebly 

 arcuate, acute at tip without setigerous puncture. Maxillse hooked at tip, with 

 very short cilise within, the outer lobe rather stout, biarticulate, the terminal joint 

 shorter, palpi stout not long, the terminal joint subcylindrical, longer than the 

 preceding and obtuse at tip. Mentum moderately emarginate with an obtuse 

 tooth sometimes nearly as long as the lateral lobes. Ligula coriaceous, more or 

 less rhomboidal, moderately prominent, quadrisetose, two setae at the tip and one 

 on each side posteriorly, paraglossee membranous, adherent to the ligula and not 

 longer, palpi longer than the nftixillaries, the terminal joint broadly securiform, 

 the penultimate bisetose in front. Thorax elongate conical, the lateral margin 

 almost obliterated, the lateral and angular setigerous punctures indistinct. Scutel- 

 lum distinct, feebly prolonged between the elytra. Elytra prolonged at base and 

 not margined there, sides narrowly inflexed, lateral margin entire, without internal 

 plica, the apex truncaite and often spinous or dentate, surface variably sculptured 

 but when striate the dorsal punctures are numerous and very evident on the 

 striae 2—4 — 6, the ninth stria close to the margin. Prosternum not prolonged. 

 Mesosternum oblique, the epimera very narrow. Metasternal epimera distinct, 

 posterior coxse contiguous. Legs moderate in length, femora, especially the ante- 

 rior, somewhat clavate, tibise slightly ciliate externally, the terminal spurs small, 

 anterior tibiae deeply emargiiiate within. Tarsi moderate in length, flattened on 

 all the feet, ciliate above, densely pubescent beneath and ciliate at the sides, fourth 

 joint deeply bilobed. Claws stout, pectinate in their entire length. 



