1956] 
Werner — New Arizona Emelinus 
38 
quite even in length, only just perceptibly thickened apic- 
ally. 
Holotype male: Length (based on length of head to 
front margin of eyes, plus length of pronotum and length 
of elytra) 3.65 mm.; maximum width of elytra ca. 1.1 mm. 
Antennae 2.10 mm., 0.57 as long as the body. Head 
suborbicular, deeply and evenly punctured, with moderately 
sparse, decumbent, cinerous pubescence. Length, to bottom 
margin of eyes, 0.56 mm.; width across eyes, 0.73 mm. 
Fronto-clypeal suture deep ; clypeus and labrum more 
finely and sparsely punctured and pubescent than the rest 
of the head. Eyes deeply excavated for the antennae, 
0.42 X 0.33 mm., separated from each other by 0.09 mm. 
A smooth border surrounds the eyes, somewhat widened 
behind. Last segment of maxillary palpi securiform, 
0.24 X 0.14 mm. Last segment of the labial palpi, as in 
all the species treated here, oval and with a conspicuous 
membranous sensory area beneath. 
Antennae very dark brown, with sparse, suberect pube- 
scence. Segment I is barrel-shaped; n short and stout, 
the dorsal the shortest side; ill subcylindrical, slightly 
expanded at the apex; iv-X with dorsal rami, curved 
slightly toward the apex of the antenna, and slight ridges 
anteriorly near the apices. The ramus of IV originates 
near the base, of X just beyond the middle of the segment 
and there is a gradual transition in between. Segment XI 
has a knob 0.63 of the distance from the base, this knob 
most prominent posteriorly. Measurements (in relation to 
a total length of 1,000 units, from segment I to xi, length/ 
thickness) : 99/46, 37/41, 109/37, 92/25, 86/25, 86/25, 
86/25, 86/25, 86/22, 86/22, 236/55. Segment XI is slender 
at base, 23 units, gradually expanding to k^ob, 55, then 
abruptly contracting, with a short apical section 25 units 
wide. Rami (at same ratio) IV to x: 238, 308, 337, 326, 
320, 295, 246. The individual rami are ca. 0.03 mm. wide 
at base, expanded feebly at apex to ca. 0.05 mm. 
Pronotum subcampanulate, the effect accentuated by a 
tuft of several setae at the posterior angles. Length 0.65 
mm., width 0.64 mm. Base slightly indented at middle, 
