108 
Psyche 
[September 
Dark specimens are more frequent among the smaller speci- 
mens but occur also among the larger. 
It is my opinion that Mr. Dillon has relied too heavily 
on exact measurement of variable characters in distinguish- 
ing moniliformis. One of the difficulties of taxonomic work 
with the Meloidae is the rather large amount of variation 
in size and correlated variation in proportions, or in ex- 
pression of secondary sexual characters. 
Epicauta fallax Horn 
Epicauta fallax Horn, 1885, Trans. Am. Ent. Soc. 12: 111. 
Werner, 1945, Bull. M. C. Z. 95: 450. 
Epicauta ensiformis Werner, 1944, Psyche 50(1943) : 68; 
1945, op. cit.:AQ2. (New Synonymy) 
Dr. J. W. MacSwain has sent a series of fallax, from 
Patterson, Stanislaus Co., California, taken May 13 to June 
4, 1948, by sweeping alfalfa. This series provides a much 
better sample of the species than was available in 1945. 
On rechecking the small series from Independence, Cali- 
fornia that was used in my 1945 paper I find that all of the 
specimens are females. The only information I had on the 
male was a set of notes on the type in the Horn collection. 
The male differs from the female mainly in the antennae, 
which are long and almost ensiform. The following descrip- 
tion of the male antennae, taken from a Patterson speci- 
men, should be added to my earlier description. Antennae 
2 1/3 as long as an anterior tibia, reaching basal fourth of 
elytra. Segment I moderately slender, reaching 1/3 across 
the eye; II small, moderately stout; III 1 1/2 as long as I 
and 1/8 wider at apex, slightly curved toward the posterior; 
IV to VII subequal in length and breadth, about 3/4 as long 
as HI; VHI to X equal in length, about 9 10 as long as 
VII, decreasing gradually in width so that X is about 3/4 
as wide as V. Proportions-"^ of antennal segments (to a 
Those measurements are used in an effort to provide a reascnabl}' 
exact record of proportions of the individual segments. Segment I is given 
first. The numerators represent length, the denominators maximum width. 
The original measurements were made with an ocular micrometer in a 
stereoscopic microscope, and are accurate to ca. p-0.02 mm. For length of 
a segment a measurement was taken from the construction at the base, 
4\fter the condyle, to the apex. The figures obtained were converted to 
