108 SEVENTEENTH Report STATE ENtToMoLociIst oF MINNESoTA—1918 
first with very faint transverse lines. Head and thorax aeneous; an- 
tennae brown, the scope slightly paler beneath; wings hyaline; all coxae 
aeneous like the thorax, all trochanters and femorae black with an 
aeneous tinge ; tibiae and tarsi usually reddish yellow, the former often 
brownish except at apex; apical joint of all tarsi dark; abdomen 
polished aeneous. 
Male—unknown. 
(2) Idiomacromerus longfellowi Girault. This species was dis- 
covered in the larval stage in a seed of red clover where it had eaten a 
larva of B. funebris, leaving only the empty skin mandibles. It was 
reared to the adult. After a number had been reared and collected 
in the field several specimens were submitted to Mr. A. A. Girault 
(1917) who described the species as new. His description of the adult 
is as follows: 
“7 mm., with ovipositor two thirds longer. Like genotype but 
hind femora simple, compressed, head somewhat longer, longer than 
wide, antennae at eye ends, thus lower. Green, wings with an oblique, 
twice longer than wide, stain, caudo-proximad from apex of stigmal. 
First tibiae save near base, straw; knees, tipe of tibiae and tarsi 1-3, 
white. Eyes nearly naked. Body densely, very finely scale punctate. 
Propodeum plane, not long, with foveae at cephalic margin between 
spiracles. Pedicel twice longer than wide at apex, ring joint 2 wider, 
shorter than 1, a third the length of funicle 1 which is nearly twice 
wider than long, others a little longer. Mandibles tridentate, teeth 
subacute, not large. Stigmal with slender ’ 
neck. Venation as in genotype. Male 
same, nearly.” 
Larva. Grublike, nearly white, moder- 
ately pubescent, 1.5 mm. long. All body 
segments distinct. Dorsum of abdomen 
with segmental folds. Head with two con- 
spicuous brown tubercles. Mandibles brown, 
acute, not dentate. After expulsion of in- 
testinal contents, preparatory to pupation, 
the body becomes a clearer white and more ... : 
= Wig. 24. Larvae of I. long- 
flat in form. fellowi. 
Pupa. At first yellow, the abdomen being paler than the head and 
thorax. Sclerital sutures brown. It gradually becomes darker, and 
just before changing to the adult, it is black with green reflections. 
Eyes reddish brown. The pupal period of a specimen observed during 
May was thirteen days. 
