CNEOKANE— METACOEYNA. 605 



2. Cneorane mexicana. (Tab. XXXIV. fig. 10.) 



Fulvous; antenna (the basal joints excepted), and the tibia at the apex, black; thorax subquadrate, finely 

 punctured ; elytra closely semirugose-punctate. 



Heaftithourpunctures : the frontal tubercles strongly raised, trigonate ; labrum piceous ; antenna robust 

 black, the basal or the first two joints fulvous, the third joint one half shorter than the fourth ; thorax 

 subquadrate, rather broader than long, the sides slightly rounded before the middle and somewhat narrowed 

 towards the base, the surface rather convex, distantly and finely punctured; scutellum broad, fulvous 

 elytra of the same reddish-fulvous colour as the thorax (in some specimens with a slight purplish reflection), 

 closely punctured, the interspaces towards tbe sides finely rugose, the epipleune extending nearly to tne 

 apex- legs robust; the femora fulvous ; the tibiae unarmed, piceous towards the apex ; the first joint o 

 the posterior tarsi as long as the following two joints together ; claws appendiculate ; the anterior coxai 

 cavities open. 



Hob. Mexico, Cerro de Plumas, Oaxaca {Hoge). 



METACORYNA. 



Body obloug; eyes moderate; palpi filiform ; antenna with the intermediate joints transverse, the eighth (or 

 ninth) ioint enormously developed and pear-shaped; thorax transversely subquadrate the angles not 

 produced; elytra convex, irregularly punctured, their epipleune continued below the middle; legs 

 slender ; tibiae simple, unarmed ; the first joint of the posterior tarsi as long as the following two joints 

 together ; claws appendiculate ; the anterior coxal cavities open. 



Type Metacoryna fulvicoUis. 



The structural characters, including the curious development of some of the joints 

 of the antenna, of Metacoryna agree with those of the tenth group of Chapuis's arrange- 

 ment, the "Cerophysims." In the typical form of Metacoryna the size of the eighth 

 antennal joint is proportionately enormous, but in one of the other species it is less 

 developed ; and although all the specimens I have for examination agree with each 

 other in this respect, I am unable to say whether this structure is peculiar to the male 



insect only. 



1 include three species from Mexico or Guatemala in this genus. 



l Metacoryna Mvicollis. (Tab. XXXIII. fig. 3, 6 .) 



Black ; head and thorax fulvous, impunctate ; elytra dark blue, submetallic, extremely finely punctured.. 



H?afimpunlte; the frontal tubercles broadly transverse ; labrum and palpi piceous ; antennae black the 

 thTeer S al ioints testaceous below, the fifth, sixth, and seventh joints transverse the : eighth joint pear- 

 shape ^ no lusly dilated and swollen, and deeply foveolate beneath, the ninth joint transversely sub- 

 £to thickened, the apical joints small and of normal shape; thorax twice as broad as long the 

 Tes rounded before the middle, the angles distinct but not produced, the surface very obsoletely fla tened 

 near the base, not visibly punctured, fulvous, opaque ; scutellum triangular, black ; elytra very finely and 

 closely punctured, dark blue, submetallic; underside and legs black. 



Hal. Mexico, Tupataro {Salle), Acapulco {Hoge). 

 The specimen from Tupataro is figured. 



