Homaeotarsus cribratus ( LeConte, 1863 )

Brunke, Adam J. & Schnepp, Kyle E., 2021, Taxonomic Changes in Nearctic Paederinae, New Records and a Redescription of the Enigmatic Genus Acrostilicus Hubbard (Coleoptera: Staphylinidae), The Coleopterists Bulletin 75 (4), pp. 883-894 : 891-892

Homaeotarsus cribratus ( LeConte, 1863) ( Fig. 3E ) BOLD:ABA6350

Cryptobium cribratum LeConte 1863: 46 . Homaeotarsus (Hesperobium) cribratus : Newton

2019 (catalog).

Type Material. Syntype (male, MCZ, examined virtually): “[yellow disc]/[male symbol]/ C. cribratum Lec [handwritten label]/Type 6429 [red label]”.

Other Material. CANADA: Ontario: Ottawa Reg., Ottawa (1, CNC) ; Dows Dam [= Dows Lake], 23.IV.1892 (1, CNC) ; Leeds and Grenville Co., St. Lawrence Is. Nat park, Grenadier Interpretive Centre , 26.V.1975, A. Davies (1, CNC) . Quebec: Levis, Lauzon , 6.X.1973, J. F. Laundry (1, CNC) ; same except 1.VI.1974 (1, CNC) ; Montreal island , 30.V.02 (no other data) (2, FSCA) ; Montreal , 10.IV.1998 (3, CNC) ; Gatineau, Park, near Hull , 28.IV.1974, A. Davies (2, CNC) [barcode voucher: CNCCJ2651-14]; Ste-Catherine , 1.VII.1960, J.-C. Aube (1, CNC) ; Saint Augustin , 17.VI.1963, Fr. Firmin (1, CNC) .

UNITED STATES: Connecticut: Fairfield Co., Stamford (no other data) (2, CNC) ; Litchfield Co., Cornwall , 7.III.1921, KF Chamberlain (3, CNC) . Indiana: Allen Co., New Haven , 11.VI.1981, N. M. Downie (1, FSCA) ; Tippecanoe Co., Lafayette , 12.VI.1983, U-V light, N. M. Downie (1, FSCA) ; Tippecanoe Co., Lafayette , 21.V. 1988, U-V light, N. M. Downie (1, FSCA) ; Tippecanoe Co., Lafayette , 1.VI.1992, N. M. Downie, UV light (1, RMBC) ; Lafayette , 8.VII.1950 (1, PERC) ; Warren Co., 23.V.1988, N. M. Downie (1, FSCA) ; Vigo Co., W. S. B., 2.V.1907 (1, PERC) ; Stein Coll. , Indiana (1, PERC) . Maryland: College Park , 16.VI.1952, at light, G. H. Nelson (1, FSCA) . North Carolina: Henderson Co., Fletcher , 11.X.1969, sunlit wall, L. Lampert (1, FSCA) . New York: Essex Co., Keene Valley , 17.VI.1912, No. 7576 N, H. Notman (1, CNC) ; Tompkins Co., 9.VI.1962, N.M. Downie (2, FSCA) ; Ithaca , 29.IV.1939, E. D. (illegible) (1, FSCA) . Pennsylvania: Northampton Co., Easton , 10.V.1925 (1, CNC) .

Diagnosis. This species is easily distinguished (except from Ho. rubripennis , known only from South Dakota) by the combination of obsolete hind angles of the head, head with few, sparse punctures, epipleural line long and extending from near humer- us to near apex of elytron, elytra near suture varying from entirely reddish to darkened in a softly defined area ( Fig. 3E ). Casey (1905) gave rather slight dif- ferences between Ho. cribratus and Ho. rubripennis and no identified specimens of the latter were available to us. All material listed was compared with the photos of the syntype of Ho. cribratus in the MCZ.

Distribution. Canada: NB, ON, QC. United States: CT [new record], IL, IN, MA, MD [new record], NC [new record], NJ, NY [new record], PA [new record], VA.

Comments. This species is broadly distributed in northeastern North America ( Newton 2019) and is here newly recorded from Connecticut, Maryland, North Carolina, New York, and Pennsylvania.

Figures

Fig. 3. Paederinae. A) Stamnoderus monstrosus, dorsal head, B) Pseudolathra oregonensis, protibia, ventral protrusion absent, C) Lobrathium grande, protibia, ventral protrusion present, D) Homaeotarsus sellatus, dorsal habitus, E) H. cribratus, dorsal habitus, F) H. serpentinus, dorsal habitus. Scale bars = 0.2 mm (A–C), 1 mm (D–F).