Lathropus robustulus Casey

Thomas, Michael C., 2010, A review of Lathropus Erichson (Coleoptera: Laemophloeidae) in Florida and the West Indies, excluding the Lesser Antilles, Insecta Mundi 2010 (120), pp. 1-21 : 8-10

Lathropus robustulus Casey

Fig. 11, 18, 25, 28, 37, 41-45

Lathropus robustulus Casey 1916: 120

Diagnosis. Length, 1.18mm - 1.72mm. This is one of two entirely dark species treated in this paper. It differs from the other, L. vernalis , in its more evenly rounded pronotum with the less prominent basal angle clearly situated outside of a line drawn through the apical angle ( Fig. 25). The surface sculpture of the pronotum is very coarse so that it appears dull, and there is no area of different sculpture ( Fig. 28). The armature of the internal sac ( Fig. 37, 42) is quite different from that of L. vernalis but is very similar to that of L. parvulus , which it resembles in many other respects as well, differing primarily in L. parvulus having a color pattern and different pronotal sculpture.

Distribution. Southern and central U.S., from Indiana south to Florida and west to Texas.

Specimens examined. 61, USA: Alabama: Jefferson Co.: Rocky Ridge ; Walker Co.: Jasper ; Florida: Alachua Co.: 29 o 34.5’N 82 o 29’W ; Gainesville; Marion Co.: Village of Rainbow Springs ; Indiana: Marion Co.: Indianapolis ; Monroe Co.: Bloomington ; Posey Co.: Hovey Lake ; Kansas: Linn Co.: 4 mi. N

Pleasanton Hwy. 69, Wildlife Area Unit C, E 1350 Rd .; Mississippi: Noxubee Co.: Noxubee N. W. Refuge ; Oktibbeha Co.: Starkville T18 N R14 E sec. 2 ; Winston Co.: Norubee N.W. Refuge 33 o 16’05"N 88 o 48’53"W ; Oklahoma: Latimer Co.: 5mi. W. Red Oak .

Discussion. Described from a “...single specimen,

taken by Mr. Schwarz at Columbus, Texas.” ( Casey

1916). I have examined the female holotype in the

USNM, which has the following label data:

“Columbu [?]-8 Texa” [part of the data have been cut away on this label]/”CASEY bequest 1925"/

” robustulus Csy. ”/” Lathropus robustulus Csy ”.