490 PHYTOPHAGA. 



3. Galerucella lineatipennis. 



Narrowly elongate, parallel, piceous below ; antennae black ; thorax rufous, pubescent, stained with fuscous ; 

 elytra closely and finely pubescent, coriaceous, greenish, each with two thin longitudinal pale lines; 

 femora testaceous. 



Var. Elytra obscure testaceous. 



Length If line. 



Head obscure fulvous, with a central longitudinal groove, closely pubescent ; labrum blackish ; antennae half 

 the length of the body, the third joint the longest ; thorax twice as broad as long, the sides rounded 

 before the middle, the posterior angles oblique, the surface with a transverse depression at the sides, and 

 another of a more longitudinal shape at the middle, rufous, covered with short but close pubescence, 

 without visible punctuation ; scutellum nearly black ; elytra finely coriaceous, the ground-colour of each 

 divided from the base to near the apex by two obscure pale subparallel lines ; the apices of the tibiae and 

 the tarsi fuscous. 



Hab. Panama, Volcan de Chiriqui (Champion). 



Distinguished from G. alternata by its narrow and parallel shape, the rufous thorax, 

 and the different pattern of the elytra ; these latter have the paler lines dividing the 

 greenish ground-colour placed at equal distances, so that the darker colour consists of 

 three longitudinal bands of equal width ; in G. alternata the greenish lines are placed 

 close together on the middle of the disc, dividing the ground-colour at uneven 

 distances. 



4. G-alerucella (?) transversicollis. (Tab. xxviil. fig. l.) 



Ovate, widened posteriorly, entirely dull testaceous, finely pubescent ; apical joints of the antennae fuscous ; 

 thorax short, transversely depressed ; elytra semirugose-punctate, finely pubescent, each with two smooth 

 raised lines from the base to the apex. 



Length 2| lines. 



Head nearly impunctate, with a longitudinal central groove extending to the clypeus, the latter but slightly 

 thickened and rather flat and broad ; antennae slender, the third joint elongate and the longest, the five 

 lower joints testaceous, the rest fuscous ; thorax very short, three times as broad as long, the sides 

 strongly rounded at the middle, the posterior margin slightly sinuate at the angles, the disc with a deep 

 and sinuate transverse depression, the surface finely pubescent and scarcely visibly punctured ; scutellum 

 broad, its apex truncate ; elytra finely rugosely punctured, each with two narrow longitudinal raised lines 

 at the middle of the disc, the sides narrowly margined ; the first joint of the posterior tarsi scarcely longer 

 than the second ; tibiae unarmed ; claws bifid ; anterior coxal cavities open. 



Hab. Panama, Tole (Champion). 



The short and entirely transversely depressed thorax, the slender antennse, and the 

 short basal joint of the posterior tarsi would have perhaps justified the separation of this 

 species from Galerucella ; in the absence of other species of similar structure I have, 

 however, at present abstained from the erection of another genus, as the shape of the 

 thorax is often found to vary considerably ; the pubescence and punctuation, as well as 

 the shape of the elytra, agree entirely with Galerucella. Mr. Champion describes 

 G. transversicollis as a very handsome insect when alive, of a pale straw-yellow, with a 

 longitudinal pink stripe eclged with black externally on each elytron. Of this there is 

 now no trace to be found, but in some specimens there is a faint narrow fuscous stripe 

 to be seen running parallel to the lateral margin. 



