220 
Psyche 
[September 
base of eye to antero-lateral angle of clypeus, plus pronotal length 
(LP) along midline, plus length of left elytron (LE, the most 
convenient indication of size) along suture; maximum width of head 
(WH) across eyes; minimum width of frons (WF) between eyes; 
maximum width of pronotum (WP) ; maximum width across both 
elytra (WE); length of hind tarsus (Ta), excluding claws; length 
of hind tibia (Ti) ; and length of median lobe (LA) from the 
dorsal margin of the basal orifice to the apex. Figures i and 2 were 
drawn with the aid of a camera lucida, figures 3 and 4 with an 
ocular grid. 
Halocoryza Alluaud 
Halocoryza Alluaud 1919:100. Type species, Halocoryza maindroni Alluaud 
1919:101, type by monotypy. Csiki 1927:547. Jeannel 1946:228. Vinson 
1956: 313. 
Very small beetles (LE, 1. 15- 1.50 mm.) ; form elongate, cylin- 
drical. Color testaceus, without metallic luster. Integument dull, 
with isodiametric microsculpture extensively distributed, especially 
conspicuous on the prothoracic pleura, abdominal sterna, and all 
frontal interspaces of head. 
Head. Labrum slightly emarginate to biemarginate ; dorsal surface 
with seven setae in front, the median and two outer ones longest; 
labrum margined laterally with four to six pairs of frayed or serrated 
setae, the most anterior two or three pairs curved forward and 
inward over mandibles. Clypeus with three subequal tuberculate 
teeth, the median tooth rising distinctly above plane of clypeus; 
paramedian carinae short and oblique, ending before reaching median 
tubercle; median field triangular, at base more than 1.5 greatest 
width of median frontal sulcus ; clypeus with one pair of setae, located 
basally and lateral to the carinae. Clypeal suture obsolete. Frontal 
lobes reduced, oblique. Frons with six pairs of longitudinally directed 
carinae between eyes, the four median pairs very nearly straight, 
parallel, equidistant, equally raised, narrow and sharp throughout 
(the frons thus quite evenly convex in appearance) ; median sulcus 
smooth, with no trace of a median carina; carina five well developed, 
slightly oblique; carina six well developed, forming a distinct dorsal 
margin to eye, either virtually continuous (in American species) or 
broken on frontal lobe. Anterior supraorbital seta placed immediately 
in front of fifth frontal carina; posterior seta placed behind fourth 
carina (American species) or behind interspace between fourth and 
fifth carinae. Eyes reduced (WF/WH more than 0.75), coarsely 
faceted. Neck impunctate, not extended along posterior margin of 
eyes. Antennae with articles five to ten square or slightly transverse, 
