126 LAMELLICOENIA. 



16. Cloeotus viridis. 



Clceotus viridis, Lansberge, Notes from the Leyden Mus. ix. p. 203 (April 1887) \ 

 Bob. Mexico \ 



According to the description this species is very similar in form, colour, and sculpture 

 to C. viridulus; but the size (2J millim.) is much less, and the phrase "bords 

 lateraux (of the thorax) legerement sinues," does not at all agree, neither can I reconcile 

 the description of the apical sculpture of the elytra with C. viridulus. 



ACANTHOCEKUS. 



Acanthocerus, Macleay, Horse Entomol. i. p. 1 36 (1819) ; Harold, Col. Hefte, xii. p. 28 ; Preudhomme 



de Borre, Cat. des Trogides, pp. 11, 26. 

 Sphceromorphus, Germar, Zeitschr. fiir Entom. iv. p. Ill (1843); Lacordaire, Gen. Col. iii. p. 158. 



Preudhomme de Borre enumerates twenty-eight species as belonging to this genus. 

 Four are from Borneo and the neighbouring islands, the rest from America. 



1. Acanthocerus eulampros. (Tab. vil. %. 23.) 



A. jpolito (Eriehs.) affinis ; splendidissime asneus, corpore subtus rufescente; clypeo basi, vertice scutelloque 

 lateribus sparsim punctulatis ; thorace stria antico-marginali medio anguste interrupta et versus angula 

 margini approximate ; elytris disco subtiliter striato-punctatis, apice la^vi, stria marginali et suturali prope 

 apicem impressis ; tibiis posticis dichotome oblique striatis. 



Long. 7 millim. 



Flab. Nicaragua, Chontales (Belt) ; Panama, Volcan de Chiriqui 2500 to 4000 feet 

 (Champion). 



Distinguished from A. politus by the finely punctured base of the clypeus, and the 

 four or five abbreviated rows of small punctures on the disc of each elytron. The 

 sutural row of punctures (which graduate into a deep stria towards the apex) does not 

 reach the base of the elytra. The base of the thorax is rounded, and there is not the 

 slightest trace of posterior angles, but the margin is slightly depressed on each side near 

 the scutellum, and the inner side of the depression is slightly tumid. The lateral margin 

 of the elytra in the place where the knees of the middle legs fit (in the rolled-up state) 

 is arched and sinuated. A specimen from Chiriqui is figured. 



2. Acanthocerus humeralis. 



Sphceromorphus humeralis, Eriehs. in Germans Zeitschr. fiir Entom. iv. p. 116 \ 

 Hab. Panama, Bugaba (Champion). — South America, Para \, 



Two examples, differing from the type form in the more prominent tubercle on the 

 outer side of the basal depression on each side of the thorax and the corresponding 

 more prominent shoulders of the elytra, a difference probably sexual. Von Harold in 



