and Central American Telephorinae. 135 



named obscurior by Pic. Four species were found mixed 

 under the name B. abdmninalis in the " Biologia " collec- 

 tion, two of them belonging to Ichthyurus and two to 

 Belotus. Leconte recorded the species from Panama in 

 1851. The aedeagus of numerous males has been dissected, 

 showing that one of the two long right lateral lobes is 

 usually retracted and not always visible, see Plate VII, 

 fig. 42. I have seen specimens from Texas, etc. 



2. Belotus acuminatus, n, sp. (Plate III, figs. 16, $; 16a, ^.) 



Shining, finely pubescent, nigro-piceous or piceous, the apices of 

 the elytra yellow, the mandibles, the anterior half of the head in ^, 

 the prothorax, a faint attenuate space down the middle of the disc 

 of each elytron, the abdomen (the last two segments excepted), and 

 the anterior legs in great part, testaceous. Head somewhat flattened 

 anteriorly, obsoletely punctate, the eyes small ; antennae slender, 

 moderately long in the two sexes, joint 3 twice the length of 2. 

 Prothorax transversely subquadrate, obsoletely punctate, the disc 

 transversely excavate laterally. Elytra about twice the length 

 of the prothorax in <^, longer and more acuminate in $, closely 

 punctulate. 



<^. Penultimate dorsal segment of abdomen produced into a small 

 conical prominence on each side at apex, the last segment broad 

 and exposed (fig. 16a). 



$. Penultimate dorsal segment of abdomen feebly triangularly 

 produced on each side at apex, the last segment small and narrow. 



Length 4r-5| mm. ((^$.) 



Hah. Panama, Volcan de Chiriqui {Chatnpion : (^ $), 

 La Chorrera {Dolby-Tyler : (^ $). 



Eleven specimens, six of which are males. Separable 

 from B. abdominalis by the more acuminate elytra, this 

 being particularly noticeable in the female, and the very 

 different asymmetric genital armature of the male, see 

 Plate VII, fig. 43. The elytra always have a more or less 

 distinct testaceous or yellowish space extending down the 

 middle of the disc from the base. The Chiriqui examples 

 were left by Gorham under B. abdominalis. 



3. Belotus maculatus. 



Belotus maculatus, Gorh., Biol. Centr.-Am., Coleopt. iii, 2, 

 pp. 99, 309. 



Hab. Panama, Chiriqui. 



