STUDIES IN NEOTROPICAL MALLOPHAGA—CARRIKER 145 
HEPTAPSOGASTER MANDIBULARIS STULTUS Clay 
Heptapsogaster stultus stultus CuAay, Proce. Zool. Soe. London., ser. B, 1937, p. 136 
(partim— ¢ ), fig. 4b, pl. 1, fig. 3. (Host: Crypturellus o. obsoletus, Argentina.) 
In the description of this species Miss Clay has made a regrettable 
but quite excusable error in that she has described the male of one 
species and the female of another. Her male is undoubtably an unde- 
scribed race of H. mandibularis, while the female is correctly identified 
as a new species, being that form mentioned by me under my “remarks” 
concerning H. mandibularis, as the form taken along with mandibu- 
laris, and for that reason could not be classed as a subspecies of it 
(mandibularis) (Carriker, 1986, p. 118). 
The name stultus, proposed for these two parasites, must therefore 
be restricted to the male, it being the first one described, and it there- 
fore becomes H. mandibularis stultus Clay. (See descriptions of 
chaetotaxy under H. mandibularis Carriker and H. inexpectata, new 
species, for substantiation of above statement.) 
The female of H. stultus Clay (1987, p. 1386) therefore remains 
without a name, which is unfortunate, in that the description of this 
interesting species must rest solely on the female, the male being un- 
known, at least of the nominate form. I have in my collection, how- 
ever, males and females of this new form from four different hosts, 
representing several different races, but unfortunately none from 
Crypturellus o. obsoletus. 
I therefore propose for the female of H. stultus Clay (1987, p. 136) 
the name Heptapsogaster inexpectata, which will be treated on a sub- 
sequent page. 
HEPTAPSOGASTER MANDIBULARIS GARLEPPI, new subspecies 
FIGURE 12, a—d 
Types.—Male and female, adults, from Crypturellus garleppi affinis, 
collected by the author at Todos Santos, Rio Chaparé, Bolivia, August 
2, 1937; 1n collection of author. 
This race of mandibularis has the front flattened, not rounded, as 
in the nominate form, while the male genitalia differ from all the 
other races here treated. It falls into the group containing mandibu- 
laris and modestae as regards size but differs from modestae in the 
shape of the endomeral prongs, which are slender, as in mandibularis. 
From mandibularis it differs in having longer, less incurved paramers, 
heavier secondary lateral endomeral plates, and in the absence of 
strengthening chitin struts in the endomeral sac, this latter being 
invisible in specimens examined. 
The head of the male is perhaps closest in shape to that of H. m. 
575507—44——_5 
