194 
Psyche 
[September 
basis of head shape. I have not seen a specimen of this species but 
have never seen a member of the genus from the Old World. Pic 
(1911) and Bonadona (1961) did not include it as a member of 
Ischyropalpus and there is no reason to believe that it should be 
retained in this genus. 
Anthicus gibbithorax Pic, transferred to Lappus by Casey (1895) 
from the description, does not belong to this genus. It was described 
as from Texas but I have had an opportunity to examine the type. 
It is undobutedly an erroneously labelled Old World species, and is 
not assignable to Ischyropalpus. 
List of Species — Group Names 
[Names believed valid are in bold-face type] 
adstrictus Krekich 1914 — Peru. 
alacer (Casey) — see nitidulus. 
albifasciatus (Pic) 1897 — probably South America. 
var. argentinus (Pic) 1904 — Argentina, 
alvarengai, new species — Brazil. 
amplicollis (Boheman) — see sericans. 
amplithorax (Pic) 1895 — Brazil. 
animatus (Casey) — see turgidicollis. 
anticefasciatus (Pic) 1910 — Argentina. 
argentinus (Pic) — see albifasciatus. 
asperulus (Casey) — see nitidulus. 
asphaltinus (Champion) 1890 — - Mexico, Guatemala. 
distinctus (Pic) 1897 — Mexico. 
thicaniformis (Werner) 1956 — Mexico, 
aterrimus (Champion) 1890 — Guatemala. 
atomarius (Boheman) — see nitidus. 
attenuatus Krekich 1913 — Argentina. 
backianus (Casey) — see bactrianus. 
bactrianus (Champion) 1890 — Mexico, Guatemala. 
backianus (Casey) 1895 — typographical error, 
baeri (Pic) 1902 — Peru, 
batesi (Pic) 1914 — Colombia. 
bipartitus (Casey) — see lividus. 
boliviensis (Pic) 1909 — Bolivia. 
bruchi (Pic) — see caesiosignatus. 
caesiosignatus (Boheman) 1858 — probably Ecuador. 
bruchi (Pic) 1904 — Argentina, 
var. mendozanus (Pic) 1914 — Argentina. 
