JAMES A. G. REHN 
103 
Anaulacomera ovibos new species (Plate III, figs. 10, 11 and 12.) 
Apparently not at all closely related to any of the previously 
known species of the genus, from all of which, excepting the 
following new species — hovicula, it differs in the extraordinarily 
recurved cerci of the male, these resembling in general form the 
horns of the musk-ox (Ovihos moschatiis). The present species 
possesses other features which appear to mark it off, but the 
cereal characters are so distinctive for ovibos and the following 
species-bovicula, they alone need be cited to enable one to recog- 
nize the species. From bovicula the larger ovibos can be separated 
by the greater development of the cerci, which are greatly atten- 
uated and recurved, recalling the horns of the musk-ox {Ovibos 
moschatus), the tips reaching dorsad almost to the base of the 
disto-dorsal abdominal segment. The genitalia of the two 
species are of essentially the same type, and no other important 
features of difference, but size, are evident, but the cerci of 
bovicula lack the extreme development found in ovibos. 
The two species appear to belong in the section of the genus 
containing A. intermedia Brunner, with which they show affinity 
in the compressed fastigium, in the lateral lobes of the pronotum 
being longer than deep, in the presence of nodes along the humeral 
trunk in the proximal section of the discoidal field of the tegmina, 
and in all the femora being spinulose beneath. 
Type. — cf ; Baixa Verde, State of Rio Grande do Norte, 
Brazil. (Stanford Expedition; W. i\I. Vlann.) [Acad. Nat. Sci. 
Phila., Type no. 5325.] 
Size medium: form compressed: surface smooth, except for sparse and very 
minute points scattered irregularly over the body; tegmina coriaceous. Head 
with the occiput gently arcuate: fastigium compressed, faintly narrower prox- 
imad than distad, the apex concavo-truncate, dorsal surface with a deep medio- 
longitudinal sulcation, lateral margins of fastigium strumoso-carinate, these 
rectangularly diverging and vanishing caudad; fastigium of the face sejiarated 
from the fastigium of the vertex by the very narrowest interval: eyes moder- 
ately prominent, sub-orbicular in basal outline: antennae (incomplete) at 
least as long as the body: palpi very slender; third joint one and two-thirds 
times as long as the fourth joint; fifth joint somewhat less than twice as long 
as the third joint, very faintly enlarged distad. Pronotum with the dorsum 
subdeplanate, subequal in width, the greatest caudal width contained nearly 
twice in the length: cephalic margin of disk very slighth’ angular-emarginate, 
caudal margin moderately arcuate ; median figure rectangulate, well imiiressed, 
caudal fourth of disk slightly depressed and somewhat different in texture from 
TRANS. AM. ENT. SOC., XLIII. 
