cate and easily broken off; they resemble slender tapering worms 

 irregularly curled. Ocelli lacking. Elytra subhyaline, long and delicate. 

 Logotype of the genus: Otiocerus stollii Kby. 



All the members of the genus are comparatively scarce 

 in numbers and practically nothing is known of their life 

 history, except that the known food plants are all de- 

 ciduous trees. The shape and lateral outline of the ros- 

 trum of each species seems to be very distinctive and will 

 prove of value in making identifications. 



It is rather difficult to arrange a key for members of 

 this genus but the following artificial one will aid in their 

 proper identification. 



Key to the species of Otiocerus 



1. General color pale red to dark red 2 



... General color whitish or a pale yellow 3 



2. Elytra with an oval spot on apical margin in addition to the 

 commissural line, 7 mm stollii Kirby 



... Elytra with only a short pale line beyond tip of clavus; large 

 species, 11 mm degeeri Kirby 



3. Elytra hyaline without markings, the veins red, 7.2 mm. 

 schellenbergi Kirby 



... Elytra with red markings only, in the form of a red vitta along 

 claval suture, forking at end of clavus, 8.75 mm., coquebertii Kirby 



4. Elytra with dark markings, chiefly in form of spots 5 



... Elytra with dark markings in form of vittae or bands 8 



5. Spots arranged over the entire elytron 6. 



... Base of corium without spots 7 



6. Spots forming series in the cells, abdomen without black spots, 

 body red degeeri Kirby 



... Spots not in series in the cells, some of them grouped in an oblique 

 vitta, body pale, the abdomen spotted, 7.5 mm francilloni Kirby 



7. Spots irregular in shape, aggregated, covering most of elytron 



except the clavus, 6 mm ballii McAtee 



Spots chiefly round, widely spaced, one in clavus, 9.5 mm., 

 abbotii Kirby 



8. Elytra whitish, with faint dark somewhat broken vitta from apex 

 of clavus obliquely across to costal margin, faintly clouded at 



inner apical angle, 8 mm kirbyi Fitch 



Elytra pale yellow with broad dusky vitta from base to middle 

 of the inner margin, extending thence obliquely across to outer 

 margin at its tip and sending a very broad branch to tip of inner 



margin, 9 mm signoretii Fitch 



Elytra pale with reddish veins, a broad subarcuate vitta, broaden- 

 ed at apex with five black dots on tip and three on the vitta itself, 

 body pale tinged with red, 7 mm. reaumurii Kirby 



130 



