Table 4. Length measurements of left and right galea and maxillary palp ventral surfaces (Fig. 1). GL = galea length, PL 1–5 = palp segment length 1–5.
Species - Male Larvae Range of Galea & Maxillary Palp Segment Lengths (µm)
GL PL 1 PL 2 PL 3 PL 4 PL 5
I. acula 415-556 53-88 137-164 262-290 271-309 229-274
I. adunca 397-518 53-81 130-160 236-267 284-327 207-248
I. baumanni 550-669 69-115 240-299 443-529 463-558 234-350
I. bifurcata 495-625 59-109 101-189 228-339 255-331 216-272
I. denningi 457-716 73-145 152-259 268-403 288-412 248-344
I. fulva CO 349-547 61-114 141-210 259-338 297-347 219-267
I. laucki 542-633 64-88 175-214 342-391 345-408 167-195
I. marmorata 563-743 71-144 179-239 295-368 297-403 220-352
I. miwok 484-663 42-104 93-184 218-352 272-418 271-371
I. mormona 324-479 34-76 92-126 195-246 222-290 201-283
I. pinta 463-605 65-102 126-171 263-333 304-387 273-336
I. quinquepunctata 427-564 55-109 169-220 262-318 263-332 248-296
I. roguensis 468-609 69-123 147-202 254-318 250-361 231-273
I. sobria 519-693 54-111 136-266 354-566 384-617 273-365
I. sordida 531-675 77-142 180-224 316-365 314-384 202-274
I. muir OR 513-601 64-122 151-207 265-302 253-326 175-244
I. tilasqua OR 536-570 69-105 210-221 388-404 447-461 270-295
persistent identifier: http://table.plazi.org/id/0EAD663DFF94F114FF30FF3491D4FECF
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Published as part of Sandberg, John B. (2011). The Isoperla Of California (Plecoptera: Perlodidae); Larval Descriptions And A Key To 17 Western Nearctic Species. Illiesia 7 (22): 202-258. DOI: 10.5281/zenodo.4760320 on page 207