THE LEAP BEETLES. 



1163 



It. Third joint of antennas shorter than fourth ; size larger, 7 or 

 more mm. XLIV. Teibhabda. 



////. Third joint of antennae longer than fourth; smaller, not 

 over 6.5 mm. XLV. Galerucella. 



gg. xVntennse not reaching middle of body, third joint longer than 

 fourth; tarsal claws narrowly bifid in males, simple in fe- 

 males. Monoxia. 

 ee. Tibia 3 , in part at least, with terminal spurs. 



i. Middle and hind tibiae with terminal spurs; antennae similar in 



the sexes; elytra greenish or greenish-yellow, usually with 

 black spots or stripes ; thorax usually with two fovea? or pits. 



XL VI. DlABROTICA. 



ii. All the tibiae with minute terminal spurs ; fifth to seventh joints 



of antennae broadly dilated in male ; elytra shining bluish-green 

 with a narrow yellow border. XLVII. Paratriarius. 



del. Claws of tarsi appendiculate. 



j. Epipleura not distinct; tibiae without spurs; color black and yellow. 



XLVII I. Phyllobrotica. 



jj. Epipleura well defined. 



1c. Tibiae with spurs; elytra black or blue. XLIX. Lcperodes. 

 Id: Tibiae without spurs; elytra black and yellow. 



L. PHYLLECTHRrs. 



XLII. Cerotoma Chev. 1834. (Gi\, "horn + joint. ") 



To this genus belongs a single rather small, oval species, having 

 the antennae slender, first joint rather long, second short, third 

 nearly as long as first, fourth shorter, 5-11 nearly equal ; first joint 

 of hind tarsus as long as the folioAving joints together. 



*2155 (6845). Cerotoma trtfurcata Forst. Nov. Sp. Ins., 1771, 29. 



Oval, narrower in front, moderately convex. 

 Body beneath and head black ; above dull yellow, 

 rarely reddish, the elytra usually with black basal 

 and side margins, the latter extending nearly to 

 apex and with three black spots on each side of 

 and close to suture, the hind one the smaller; the 

 spots and border often in part lacking, sometimes 

 to such an extent as to leave only the scutellum 

 black ; antennae and legs yellow, the tibise and often 

 the femora in part black. Thorax nearly twice as 

 wide as long, slightly narrow r ed in front, margin 

 broader near base ; disk very finely and sparsely Fig 506 (After Chittenden in 

 punctate. Elytra with irregular rows of fine, rather Bul1 - IX ' N ew Ser -- U. S. Div. 

 distant punctures. Length 3.5-5 mm. (Fig. 506.) Ent ' 



Throughout the State; frequent. February 21-Oetober 18. Hi- 

 bernates in small numbers beneath logs and other cover in low, 

 moist places. Occurs in summer on bush-clover (LcspcrJcza) , tick 



