STUDIES IN NEOTROPICAL MALLOPHAGA—CARRIKER 153 
HEPTAPSOGASTER INEXPECTATA TUXTLAE, new subspecies 
FIGURE 14, a-d 
Types.—Male and female, adults, from Crypturellus b. boucardt, 
collected by the author on Cerro Tuxtla, Veracruz, Mexico, March 28, 
1940; in U. S. National Museum. 
Diagnosis—A comparison of the figure of the male genitalia of 
this race with that given by Miss Clay for H. s. stultus (= H. mandt- 
buldaris stultus) will show that they are of an entirely different type, 
at least the endomeral plate. 
The male of this race is essentially like the description given above 
for that of ineawpectata, and it may be separated from other races of 
the species by the male genitalia, shape and size of various body seg- 
ments, and size and shape of the scent gland, which always seems to 
differ slightly in the different races. The female may be separated 
from the nominate form by the shape of the head and the antennae. 
The head is very similar in shape to that of H. mandibularis noctivagi 
Clay, except that the temples are very much narrower and pointed. 
The shape of the trabecular tubercles is another diagnostic character 
for the females of ineapectata (mentioned by Miss Clay), those of 
inexpectata being truncate on the posterior margin, while in man- 
dibularis they are bluntly pointed and longer. 
The female of twatlae is larger in all porportions than that of 
inexpectata, but the differences are not great, except for the head, 
which is considerably longer and some wider (see measurements), 
the other measurements not differing more than could be taken care 
of under individual variation. 
MEASUREMENTS OF HEPTAPSOGASTER INEXPECTATA 
tuztlae 
—— 
inexpectata (female) 
Structure Male Female 
Length | Width | Length | Width | Length | Width 
— | fe 
IB Oye beep A ai ea IL ee OIA Ach I ee a DSH AL ae Sele, 1. 30 
TET Ga Ge Sk Avnet Sec Cereal 0. 36 0. 47 0. 38 0. 49 0. 32 0. 47 
IPrOthora xa: iar stones ate Ae eye 0.13 0. 28 0. 13 0. 30 0.12 0. 28 
IVE eSOGM OTA K insane veh NTN ame 0.13 0. 50 0.13 0. 51 
VIS bAtN Ora xsl Lua Mee ULE MOUS re 0. 12 0. 50 0.13 0. 50 Qe Beh 
JNJ ONG KOT COVE a Vie eA) ET AT eect ae ite 0. 58 0. 62 0. 76 0. 64 0. 74 
Antennae (first segment) ____---_------__-- 0. 097 0. 055 LQG) UE UGS Up RES NIT. oes 
PAT AMET Sees unt taps RS YUAN NI 0. 09 OR OT 5ih| Ree eet) astm He Nee 
1 Total. 
Remarks.—In the males of H. inexpectata there are two strong 
hairs on the occipital margin of the head, one at the edge of the pro- 
