1977] 
Adams — Leucochrysa 
93 
is Leucochrysa risi Navas, in which many specimens have an intra- 
median cell resembling that of Nodita; this species could be assigned 
to either genus equally well. The case of L. negata is comparable 
(see below). Species of Nodita and Leucochrysa from the United 
States, however, can be separated with fair reliability by the form 
of the intramedian cell. 
Occasional aberrant specimens of other genera with a quadran- 
gular intramedian cell may mistakenly be referred to Leucochrysa 
if other characters are not considered. This is exemplified by Al- 
lochrysa parvula Banks 1903: 143, the unique type of which is 
Chrysopa lineaticornis Fitch: No data, (Runnymede, Fla., accord- 
ing to description) male, MCZ 11405, "C. Columbiana, det. E. G. 
MacLeod” (new synonymy). 
The genitalia of both sexes of Leucochrysa are fully illustrated 
here for the first time. In the male, the eighth sternite is more or 
less distinctly demarked from the ninth; sternites except ninth usu- 
ally with microtholi. Tignum, gonapsis and gonocristae are absent. 
The mediuncus (=arcessus) usually bears a small curved median 
tooth or hook flanked by notches (Fig. 10, 11), no entoprocesses 
(gonocoxites). In the female, subgenitale small, or entire area pos- 
teriorly to seventh sternite broadly sclerotized ( insularis , arizonica, 
singulars), ventral pit sometimes far anteriorly ( insularis , arizon- 
ica) or on a separate sclerite {internata). Spermatheca pillbox-shaped 
as in Chrysopa, or more frequently elongate and bent ( internata , 
dolichocera), spermathecal duct short ( insularis , arizonica) to ex- 
tremely elongate ( internata , angrandi ), bursal duct sometimes elab- 
orated {magnified), two bursal glands. 
The female genitalia, although tedious to prepare for examina- 
tion, are surprisingly diverse, offering excellent taxonomic char- 
acters. It is imperative that preparations of critical specimens retain 
the copulatory bursa with its glands, ducts, and connection to the 
spermatheca intact. Removal of the spermatheca destroys the as- 
sociated structures, and should be avoided if at all possible. 
Leucochrysa Colombia Banks 
Figures 1-4 
Allochrysa Colombia Banks 1910: 150. A specimen from “Sta. Margarita, W. 
Colombia, July, 2700 m” MCZ No. 1 1999 (not dissected) is designated lectotype. 
A “cotype” female from Canon del Monte Tolima, Colombia, 1700 m, in the 
BMNH is designated a paratype. Leucochrysa Colombia, Banks, 1944: 32. 
