589 



1880.] MR. M. JACOBY ON PHYTOPHAGOUS COLEOPTERA. 



groove is Situated at the middle near the base; anterior an<.les of 



the thorax rounded ; surface shining black, with two short rows of 



niall punctures; scutellum black. Elytra much widei than the 



thorax deeply punctate-striate, n>ore finelv punctured near 1 e 



Svo^s a C?"" 1 ''", ^^""^ P^^^^ --ieostate, in.punctat 

 fla ous; abioad pear-shaped metaUic blue patch, common to both 

 el tra. occupies nearly the entire disk, commencing from the scu- 

 tellum and endmg at about two thirds of the lengtl of The elvtra 



of this patch IS nearly truncate, the hinder angles oblique. Under- 



This species bears some resemblance to L. degau.M, Baly. also 

 fn)m Ecuador; but in that insect the second and third oints^of the 

 an ennae are of equal length, which is not the case in ^he present 

 species, the third joint being double the leno-th of the second ^th. 

 jnterspaces of the elytra are not elevated, and"the stlt are tul " 

 the bl,e colour in L.deffaudei extends also through the entire fen'th 

 of the elytra. It might perhaps be.t be placed "after L. 6ipc^C 



Mus. Jacoby. 



3. Lema flavicornis, sp. nor. 



Oblong, fulvous; head, sides of the breast, and a spot on each 

 femur black ; antennae flavous, the basal joint black 

 Length 3f lines. 



f ^f^fi'T?"'' °'' '^' ^'"^ ^"^^'^"'' tb^ '•^st black, shining, impunc- 

 ate, finely transversely grooved behind the eves, orbital grooves X 

 deep; antennae one third the length of the bod v, rather Jobus? 

 flavous, the first joint subglobular, black. Thor.-x subquadrate 

 anterior angles rounded, basilar transverse groove diwJides 

 deeply constricted below the middle; surface fulvouiSh two 

 parallel rows o fine punctures from the apex to the middlJ Eh tra 

 convex, strongly punctate-striate near 'the base, the p^nctu es 

 becoming very fine towards the apex ; interstices sm;oh!no^tcostae 

 minjately punctured towards the base. Sides of the breast and a 

 mark in the shape of a ring at the middle of the femora black rest 

 of the underside and the legs fulvous ; claws piceous. ' 



Mus. Jacoby. *^ 



Genus Mastostethus, Lacord. 



1lV,f^rT''^''''',^J'f'''^"' ^"'•^^' Cistula Entomol. 18/8. 

 iU?<«. Godinan and Salvin. 



p.20a^^''''''^^''''''' THORAcicus, Baly, Ann. Nat. Hist. 1859, 



6. Mastostethus modestus, sp. nov. 



fplT"^'^ ""^-T' '°i '!,'*• ^'^^'' ^'^'^'^"^ ■' ^^^'-^'^ black, varie-^ated with 

 testaceous, sides and base of mesothorax black; ely'tra fulvont wltS 



