and Central American Telephorinae. 131 



rest of the body being piceous or nigro-piceous (the 

 lateral margins of the first three or four abdominal 

 segments excepted), and the legs and antennae are also 

 infuscate. The terminal processes of the last dorsal 

 segment are long and subcorneal , longer than in I. sallei 

 and I. fuscivenfris. 



5. Ichthyurus fusciventris, n. sp. 



$. Moderately elongate, shining, finely pubescent ; nigro-piceous, 

 the apices of the elytra broadly yellow, the two basal joints of the 

 antennae and the base of the femora testaceous. Head minutely 

 punctate, transversely depressed between the eyes above, the latter 

 large; antennae slender, about reaching the apices of the elytra. 

 Prothorax transverse, minutely punctate, and with a very small, 

 smooth, oblong tubercle on the middle of the disc. Elytra nearly 

 twice the length of the prothorax, obliquely plicate, and closely 

 punctate. Terminal dorsal segment of the abdomen produced on 

 each side into a triangular process. 



Length 3^ mm. 



Hab. Mexico, Chilpancingo in Guerrero {H. H. Smith). 



Two females. A small form near /. semiflavus, with the 

 apices only of the elytra yellow, the prothorax and abdomen 

 infuscate, the abdominal appendages flatter. The small 

 tubercle on the prothorax is similar to that present in 

 7. semiflavus and /. dichelifer. Compared with /. fuscus, 

 Gorh., $, the present species is much smaller and has the 

 yellow portion of the elytra restricted to the apex and the 

 terminal processes much shorter. 



6. Ichthyurus semiflavus, n. sp. 



$. Moderately elongate, shining, finely pubescent; piceous, the 

 elytra with an obliquely cut-oft' outer space yellow (leaving a very 

 large, subtriangular, common, dark scutellar patch), the head 

 between the eyes, the basal joints of the antennae, some irregular 

 sinuous markings on the prothorax, the terminal dorsal abdominal 

 segment (except at the tip), and the base of the femora, testaceous 

 or flavous. Head minutely punctate, broadly depressed between 

 the eyes above, the latter large; antennae moderately slender. 

 Prothorax transverse, closely, minutely punctate, arcuately de- 

 pressed on the disc towards the base, and with a small, smooth, 

 oblong tubercle in the middle of the depression. Elytra about 

 twice as long as the prothorax, closely punctate and distinctly 



