Paratype: 1 [sex unknown]. IND. Monroe County / Scott’s Pond at / Bloomington #652 / vi.1.52 FNYoung // HYDROPORUS / RUFILABRIS / Sharp / Det. FNYoung // [on blue] PARATYPE / Hydroporus / signatus / youngi / Robert Gordon
Conservation status: Good condition; glued on point
Paratype: 1 [sex unknown]. Camp Rucker / Ozark, Alabama / [handwritten] 31 XII [typed] 194[handwritten]2 / J.G.Franclemont // [on blue] PARATYPE / Hydroporus / signatus / youngi / Robert Gordon
Conservation status: Good condition; glued on point
Paratype: 1 [sex unknown]. GA. Floyd County / Cave Spring / (pool at spring) / 642ix.4.49 FNYoung // [on blue] PARATYPE / Hydroporus / signatus / youngi / Robert Gordon
Conservation status: Good condition; parts of abdomen glued on point under specimen; glued on point
Paratype: 1 ♀. GA. Fulton County / Fort McPherson in / Atlanta (pool) / x913iii.31.43FNYoung // [label handwrit- ten] Hydroporus / s.str. ♀ // [on blue] PARATYPE / Hydroporus / signatus / youngi / Robert Gordon
Conservation status: Good condition; glued on point
Paratype: 1 [sex unknown]. IND. Monroe County / Scott’s Pond at / Bloomington #652 / iv.17.52 FNYoung // Compared with Type / in British Museum / by Frank N. Young // HYDROPORUS / RUFILABRIS / Sharp / Det. FNYoung // [on blue] PARATYPE / Hydroporus / signatus / youngi / Robert Gordon
Conservation status: Good condition; glued on point
Paratype: 1 ♀. ♀ // FLA. Liberty County / Stream 7 mi. S. Bris / tol-Fla. 67 vi.11.54 / 1070 SBrown-FNYoung // HYDROPORUS / (s. str.) / sp. 7 ♀♀ // [on blue] PARATYPE / Hydroporus / signatus / youngi / Robert Gordon
Conservation status: Good condition; glued on point
Paratype: 1 [sex unknown]. VA. Giles County / Pond near Mt. Lake / vii. 22. 1959 / 1462 FNYoung // HYDRO- PORUS / SIGNATUS / Mann. / Det. FNYoun // [on blue] PARATYPE / Hydroporus / signatus / youngi / Robert Gordon
Conservation status: Good condition; parts of abdomen glued on point under specimen; glued on point
Paratype: 1 [sex unknown]. Swimming Pool / Droop Mt. W.Va. / June 9, 1933 // [on red] 1 / 05 // Compared with Type / [handwritten] latifrons+ / [handwritten] rufilabris / by Frank N. Young // [on folded label; label hand- written] sp. nov or? / latifrons / Shp.? // [label handwritten] n.sp. close / to rufi- / labris / ‘61 FNYoung // [empty red label] // [on blue] PARATYPE / Hydroporus / signatus / youngi / Robert Gordon
Conservation status: Good condition; parts of abdomen glued on point under specimen; glued on point
Paratype: 1 [sex unknown]. GA. Decatur County / Flatwoods 2.7 mi NE / Faceville vi.11.54 / 1066 SBrown-FYoung // HYDROPORUS [handwritten] c.f. / RUFILABRIS / Sharp / Det. FNYoung // [on blue] PARATYPE / Hydroporus / signatus / youngi / Robert Gordon
Conservation status: Good condition; glued on point
Paratype: 1 [sex unknown]. IND. Monroe County / Bloomington [handwritten] 652 / Scott’s Pond Area / [handwritten] IV.8.51 [typed] FNYoung // Compared with Type / in British Museum / by Frank N. Young // HY- DROPORUS / RUFILABRIS / Sharp / Det. FNYoung // [empty red label] // [on blue] PARATYPE / Hydroporus / signatus / youngi / Robert Gordon
Conservation status: Good condition; glued on point
Paratype: 1 [sex unknown]. Camp Rucker / Ozark, Alabama / [handwritten] 31XII [typed]194[handwritten]2 / J.G.Franclemont // [handwritten] Hydroporus / [handwritten] n.sp. / Det. FNYoung // [on blue] PARATYPE / Hydroporus / signatus / youngi / Robert Gordon
Conservation status: Good condition; parts of abdomen glued on point under specimen; glued on point