APPENDIX
List of the specimens examined in the paper.
| USNM Number | Taxon |
| USNM 543764 | Conchapelopia |
| USNM 553523 | Chaoborus kishenehnicus sp. nov. |
| USNM 595142 | Chaoborus kishenehnicus sp. nov. |
| USNM 595142 | Chaoborus kishenehnicus sp. nov. |
| USNM 619945 | cf. Stilobezzia |
| USNM 619945 | cf. Stilobezzia |
| USNM 620003 | Chaoborus kishenehnicus sp. nov. |
| USNM 620010 | Chaoborus kishenehnicus sp. nov. |
| USNM 620056 | Chaoborus kishenehnicus sp. nov. |
| USNM 620056 | Chaoborus kishenehnicus sp. nov. |
| USNM 620057 | Chaoborus kishenehnicus sp. nov. |
| USNM 620086 | Chaoborus kishenehnicus sp. nov. |
| USNM 620093 | Chaoborus kishenehnicus sp. nov. |
| USNM 620245 | Hintelmannia noncatafractata sp. nov. |
| USNM 620309 | Chaoborus kishenehnicus sp. nov. |
| USNM 620368 | Conchapelopia |
| USNM 620385 | Chaoborus kishenehnicus sp. nov. |
| USNM 620404 | Chironominae larvae? |
| USNM 620470 | Chaoborus kishenehnicus sp. nov. |
| USNM 620534 | Chaoborus kishenehnicus sp. nov. |
| USNM 620560 | Chaoborus kishenehnicus sp. nov. |
| USNM 620770 | Chaoborus kishenehnicus sp. nov. |
| USNM 620791 | Conchapelopia |
| USNM 620865 | Chaoborus kishenehnicus sp. nov. |
| USNM 620922 | Conchapelopia |
| USNM 620922 | Conchapelopia |
| USNM 620924 | Chaoborus kishenehnicus sp. nov. |
| USNM 620960 | Chaoborus kishenehnicus sp. nov. |
| USNM 620960 | Chaoborus kishenehnicus sp. nov. |
| USNM 620992 | Conchapelopia |
| USNM 621036 | Chaoborus kishenehnicus sp. nov. |
| USNM 621036 | Chaoborus kishenehnicus sp. nov. |
| USNM 621041 | Chaoborus kishenehnicus sp. nov. |
| USNM 621057 | Conchapelopia |
| USNM 621066 | Chaoborus kishenehnicus sp. nov. |
| USNM 621066 | Chaoborus kishenehnicus sp. nov. |
| USNM 621075 | Conchapelopia |
| USNM 621089 | Conchapelopia |
| USNM 621188 | Conchapelopia |
| USNM 621239 | Chaoborus kishenehnicus sp. nov. |
| USNM 621239 | Chaoborus kishenehnicus sp. nov. |
| USNM 621239 | Chaoborus kishenehnicus sp. nov. |
| USNM 621240 | Chaoborus kishenehnicus sp. nov. |
| USNM 621245 | Chaoborus kishenehnicus sp. nov. |
| USNM 621252 | Chaoborus kishenehnicus sp. nov. |
| USNM 621272 | cf. Stilobezzia |
| USNM 621273 | Chaoborus kishenehnicus sp. nov. |
| USNM 621308 | Chaoborus kishenehnicus sp. nov. |
| USNM 621340 | Chaoborus kishenehnicus sp. nov. |
| USNM 621340 | Chaoborus kishenehnicus sp. nov. |
| USNM 621354 | Chaoborus kishenehnicus sp. nov. |
| USNM 621371 | Chaoborus kishenehnicus sp. nov. |
| USNM 621387 | Conchapelopia |
| USNM 621395 | Conchapelopia |
| USNM 621398 | Chaoborus kishenehnicus sp. nov. |
| USNM 621466 | Chaoborus kishenehnicus sp. nov. |
| USNM 621479 | Conchapelopia |
| USNM 621483 | cf. Stilobezzia |
| USNM 621483 | cf. Stilobezzia |
| USNM 621509 | Chaoborus kishenehnicus sp. nov. |
| USNM 621526 | Chaoborus kishenehnicus sp. nov. |
| USNM 621538 | Chaoborus kishenehnicus sp. nov. |
| USNM 621580 | Conchapelopia |
| USNM 621582 | Chaoborus kishenehnicus sp. nov. |
| USNM 621592 | Conchapelopia |
| USNM 621661 | Chaoborus kishenehnicus sp. nov. |
| USNM 621661 | Chaoborus kishenehnicus sp. nov. |
| USNM 621718 | Chaoborus kishenehnicus sp. nov. |
| USNM 621753 | Conchapelopia |
| USNM 621798 | cf. Stilobezzia |
| USNM 621836 | cf. Stilobezzia |
| USNM 621869 | Conchapelopia |
| USNM 621902 | Chaoborus kishenehnicus sp. nov. |
| USNM 621922 | Chaoborus kishenehnicus sp. nov. |
| USNM 621985 | Chaoborus kishenehnicus sp. nov. |
| USNM 622138 | Chaoborus kishenehnicus sp. nov. |
| USNM 622520 | Chaoborus kishenehnicus sp. nov. |
| USNM 622562 | Chaoborus kishenehnicus sp. nov. |
| USNM 622589 | Chaoborus kishenehnicus sp. nov. |
| USNM 622680 | cf. Stilobezzia |
| USNM 622721 | Conchapelopia |
| USNM 622737 | Conchapelopia |
| USNM 622767 | Culicomorpha mt2 |
| USNM 622776 | cf. Stilobezzia |
| USNM 622807 | Conchapelopia |
| USNM 622875 | Chaoborus kishenehnicus sp. nov. |
| USNM 622889 | Conchapelopia |
| USNM 622925 | Chaoborus kishenehnicus sp. nov. |
| USNM 622927 | Chaoborus kishenehnicus sp. nov. |
| USNM 622935 | Chaoborus kishenehnicus sp. nov. |
| USNM 622951 | Chaoborus kishenehnicus sp. nov. |
| USNM 622981 | Chaoborus kishenehnicus sp. nov. |
| USNM 623003 | Chaoborus kishenehnicus sp. nov. |
| USNM 623014 | Chaoborus kishenehnicus sp. nov. |
| USNM 623018 | Chaoborus kishenehnicus sp. nov. |
| USNM 623028 | Chaoborus kishenehnicus sp. nov. |
| USNM 623028 | Conchapelopia |
| USNM 623038 | Chaoborus kishenehnicus sp. nov. |
| USNM 623039 | Chaoborus kishenehnicus sp. nov. |
| USNM 623045 | Chaoborus kishenehnicus sp. nov. |
| USNM 623045 | cf. Stilobezzia |
| USNM 623063 | Chaoborus kishenehnicus sp. nov. |
| USNM 623065 | Chaoborus kishenehnicus sp. nov. |
| USNM 623066 | Chaoborus kishenehnicus sp. nov. |
| USNM 623070 | Chaoborus kishenehnicus sp. nov. |
| USNM 623071 | Chaoborus kishenehnicus sp. nov. |
| USNM 623080 | Chaoborus kishenehnicus sp. nov. |
| USNM 623080 | Chaoborus kishenehnicus sp. nov. |
| USNM 623080 | Chaoborus kishenehnicus sp. nov. |
| USNM 623091 | Chaoborus kishenehnicus sp. nov. |
| USNM 623094 | Chaoborus kishenehnicus sp. nov. |
| USNM 623105 | cf. Stilobezzia |
| USNM 623105 | cf. Stilobezzia |
| USNM 623112 | cf. Stilobezzia |
| USNM 623115 | Conchapelopia |
| USNM 623116 | cf. Stilobezzia |
| USNM 623116 | cf. Stilobezzia |
| USNM 623154 | Chaoborus kishenehnicus sp. nov. |
| USNM 623197 | Rheotanytarsus lacustris sp. nov. |
| USNM 623209 | cf. Stilobezzia |
| USNM 623232 | Chaoborus kishenehnicus sp. nov. |
| USNM 623250 | Chaoborus kishenehnicus sp. nov. |
| USNM 623251 | cf. Stilobezzia |
| USNM 623267 | Chironominae larvae? |
| USNM 623303 | cf. Stilobezzia |
| USNM 623305 | Chaoborus kishenehnicus sp. nov. |
| USNM 623317 | cf. Stilobezzia |
| USNM 623317 | cf. Stilobezzia |
| USNM 623320 | cf. Stilobezzia |
| USNM 623325 | cf. Stilobezzia |
| USNM 623325 | cf. Stilobezzia |
| USNM 623326 | cf. Stilobezzia |
| USNM 623326 | cf. Stilobezzia |
| USNM 623343 | Chaoborus kishenehnicus sp. nov. |
| USNM 623344 | cf. Stilobezzia |
| USNM 623346 | cf. Stilobezzia |
| USNM 623346 | cf. Stilobezzia |
| USNM 623346 | cf. Stilobezzia |
| USNM 623350 | cf. Stilobezzia |
| USNM 623354 | cf. Stilobezzia |
| USNM 623356 | Chaoborus kishenehnicus sp. nov. |
| USNM 623356 | Chaoborus kishenehnicus sp. nov. |
| USNM 623360 | cf. Stilobezzia |
| USNM 623362 | cf. Stilobezzia |
| USNM 623365 | cf. Stilobezzia |
| USNM 623365 | cf. Stilobezzia |
| USNM 623371 | Chaoborus kishenehnicus sp. nov. |
| USNM 623376 | cf. Stilobezzia |
| USNM 623408 | Chaoborus kishenehnicus sp. nov. |
| USNM 623429 | cf. Stilobezzia |
| USNM 623445 | cf. Stilobezzia |
| USNM 623472 | cf. Stilobezzia |
| USNM 623472 | cf. Stilobezzia |
| USNM 623474 | cf. Stilobezzia |
| USNM 623479 | cf. Stilobezzia |
| USNM 623490 | cf. Stilobezzia |
| USNM 623491 | cf. Stilobezzia |
| USNM 623522 | cf. Stilobezzia |
| USNM 623537 | Chaoborus kishenehnicus sp. nov. |
| USNM 623538 | Conchapelopia |
| USNM 623538 | Tanypodinae pupa sp. |
| USNM 623555 | cf. Stilobezzia |
| USNM 623556 | f. Stilobezzia |
| USNM 623556 | cf. Stilobezzia |
| USNM 623559 | cf. Stilobezzia |
| USNM 623561 | Chaoborus kishenehnicus sp. nov. |
| USNM 623574 | cf. Stilobezzia |
| USNM 623574 | cf. Stilobezzia |
| USNM 623599 | Chironomidae sp |
| USNM 623631 | Chaoborus kishenehnicus sp. nov. |
| USNM 623635 | Chaoborus kishenehnicus sp. nov. |
| USNM 623669 | Rheotanytarsus lacustris sp. nov. |
| USNM 623685 | Chaoborus kishenehnicus sp. nov. |
| USNM 623704 | Macropelopiini |
| USNM 623820 | Chaoborus kishenehnicus sp. nov. |
| USNM 623832 | cf. Stilobezzia |
| USNM 623895 | Chaoborus kishenehnicus sp. nov. |
| USNM 623914 | Culicidae |
| USNM 624067 | cf. Stilobezzia |
| USNM 624068 | cf. Stilobezzia |
| USNM 624073 | Chaoborus kishenehnicus sp. nov. |
| USNM 624073 | Chaoborus kishenehnicus sp. nov. |
| USNM 624185 | cf. Stilobezzia |
| USNM 624188 | Rheotanytarsus sp. |
| USNM 624241 | Chaoborus kishenehnicus sp. nov. |
| USNM 624269 | cf. Stilobezzia |
| USNM 624277 | cf. Stilobezzia |
| USNM 624284 | Chironominae |
| USNM 624317 | Rheotanytarsus lacustris sp. nov. |
| USNM 624326 | Chaoborus kishenehnicus sp. nov. |
| USNM 624376 | cf. Stilobezzia |
| USNM 624380 | cf. Stilobezzia |
| USNM 624409 | Chironominae sp. |
| USNM 624415 | Hintelmannia noncatafractata sp. nov. |
| USNM 624418 | Hintelmannia noncatafractata sp. nov. |
| USNM 624466 | Rheotanytarsus lacustris sp. nov. |
| USNM 624500 | Chaoborus kishenehnicus sp. nov. |
| USNM 624545 | Chaoborus kishenehnicus sp. nov. |
| USNM 624552 | cf. Stilobezzia |
| USNM 624553 | cf. Stilobezzia |
| USNM 624579 | cf. Stilobezzia |
| USNM 624644 | Hintelmannia noncatafractata sp. nov. |
| USNM 624657 | cf. Stilobezzia |
| USNM 624658 | Chaoborus kishenehnicus sp. nov. |
| USNM 624665 | Hintelmannia noncatafractata sp. nov. |
| USNM 624707 | cf. Stilobezzia |
| USNM 624707 | cf. Stilobezzia |
| USNM 624708 | cf. Stilobezzia |
| USNM 624708 | cf. Stilobezzia |
| USNM 624743 | cf. Stilobezzia |
| USNM 624743 | cf. Stilobezzia |
| USNM 624754 | Chaoborus kishenehnicus sp. nov. |
| USNM 624768 | Chaoborus kishenehnicus sp. nov. |
| USNM 624802 | cf. Stilobezzia |
| USNM 624802 | cf. Stilobezzia |
| USNM 624811 | Rheotanytarsus lacustris sp. nov. |
| USNM 624823 | Culicomorpha mt 2 |
| USNM 624824 | Rheotanytarsus lacustris sp. nov. |
| USNM 624829 | Culicomorpha |
| USNM 624863 | Hintelmannia noncatafractata sp. nov. |
| USNM 624873 | Chaoborus kishenehnicus sp. nov. |
| USNM 624879 | cf. Stilobezzia |
| USNM 624879 | cf. Stilobezzia |
| USNM 624879 | cf. Stilobezzia |
| USNM 624891 | cf. Stilobezzia |
| USNM 624894 | Chaoborus kishenehnicus sp. nov. |
| USNM 624896 | cf. Stilobezzia |
| USNM 624898 | cf. Stilobezzia |
| USNM 624898 | cf. Stilobezzia |
| USNM 624909 | Chaoborus kishenehnicus sp. nov. |
| USNM 624917 | Chaoborus kishenehnicus sp. nov. |
| USNM 624929 | cf. Stilobezzia |
| USNM 624938 | Chaoborus kishenehnicus sp. nov. |
| USNM 624963 | Chaoborus kishenehnicus sp. nov. |
| USNM 624970 | Chaoborus kishenehnicus sp. nov. |
| USNM 624982 | Chaoborus kishenehnicus sp. nov. |
| USNM 624986 | Chaoborus kishenehnicus sp. nov. |
| USNM 625080 | Chaoborus kishenehnicus sp. nov. |
| USNM 625099 | Rheotanytarsus lacustris sp. nov. |
| USNM 625108 | cf. Stilobezzia |
| USNM 625108 | Chaoborus kishenehnicus sp. nov. |
| USNM 625114 | Chaoborus kishenehnicus sp. nov. |
| USNM 625177 | Chaoborus kishenehnicus sp. nov. |
| USNM 625193 | cf. Stilobezzia |
| USNM 625199 | Chaoborus kishenehnicus sp. nov. |
| USNM 625239 | Rheotanytarsus lacustris sp. nov. |
| USNM 625395 | cf. Stilobezzia |
| USNM 625432 | Chaoborus kishenehnicus sp. nov. |
| USNM 625550 | cf. Stilobezzia |
| USNM 625825 | cf. Stilobezzia |
| USNM 625864 | Chaoborus kishenehnicus sp. nov. |
| USNM 625884 | Chaoborus kishenehnicus sp. nov. |
| USNM 625889 | Chaoborus kishenehnicus sp. nov. |
| USNM 626009 | Conchapelopia |
| USNM 626036 | Conchapelopia |
| USNM 626053 | Chaoborus kishenehnicus sp. nov. |
| USNM 626057 | Conchapelopia |
| USNM 626057 | Conchapelopia |
| USNM 626091 | Chaoborus kishenehnicus sp. nov. |
| USNM 626096 | Conchapelopia |
| USNM 626098 | Chaoborus kishenehnicus sp. nov. |
| USNM 626121 | Conchapelopia |
| USNM 626155 | Chaoborus kishenehnicus sp. nov. |
| USNM 626155 | Chaoborus kishenehnicus sp. nov. |
| USNM 626165 | Chaoborus kishenehnicus sp. nov. |
| USNM 626284 | Culicomorpha pupa |
| USNM 712974 | Rheotanytarsus lacustris sp. nov. |
| USNM 712977 | Chaoborus kishenehnicus sp. nov. |
| USNM 712984 | Chaoborus kishenehnicus sp. nov. |
| USNM 717190 | Conchapelopia |
| USNM 717195 | Conchapelopia |
| USNM 717238 | Conchapelopia |
| USNM 717284 | Chaoborus kishenehnicus sp. nov. |
| USNM 717304 | Chaoborus kishenehnicus sp. nov. |
| USNM 717313 | Conchapelopia |
| USNM 717313 | Chaoborus kishenehnicus sp. nov. |
| USNM 717324 | Conchapelopia |
| USNM 717348 | Conchapelopia |
| USNM 717368 | Chaoborus kishenehnicus sp. nov. |
| USNM 717406 | cf. Stilobezzia |
| USNM 717406 | cf. Stilobezzia |
| USNM 717406 | cf. Stilobezzia |
| USNM 717423 | cf. Stilobezzia |
| USNM 717428 | Hintelmannia noncatafractata sp. nov. |
| USNM 717431 | Hintelmannia noncatafractata sp. nov. |
| USNM 717438 | cf. Stilobezzia |
| USNM 717438 | cf. Stilobezzia |
| USNM 717479 | Chaoborus kishenehnicus sp. nov. |
| USNM 717486 | cf. Stilobezzia |
| USNM 717486 | cf. Stilobezzia |
| USNM 717509 | Chaoborus kishenehnicus sp. nov. |
| USNM 717518 | cf. Stilobezzia |
| USNM 717534 | cf. Stilobezzia |
| USNM 717536 | cf. Stilobezzia ? |
| USNM 717542 | cf. Stilobezzia |
| USNM 717572 | cf. Stilobezzia |
| USNM 717577 | Rheotanytarsus lacustris sp. nov. |
| USNM 717591 | Chaoborus kishenehnicus sp. nov. |
| USNM 717592 | cf. Stilobezzia |
| USNM 717592 | cf. Stilobezzia |
| USNM 717606 | cf. Stilobezzia |
| USNM 717609 | cf. Stilobezzia |
| USNM 717614 | cf. Stilobezzia |
| USNM 717614 | cf. Stilobezzia |
| USNM 717642 | cf. Stilobezzia |
| USNM 717642 | cf. Stilobezzia |
| USNM 717670 | Chaoborus kishenehnicus sp. nov. |
| USNM 722238 | Rheotanytarsus lacustris sp. nov. |
| USNM 722238 | Rheotanytarsus lacustris sp. nov. |
| USNM 722238 | Rheotanytarsus lacustris sp. nov. |
| USNM 722239 | Rheotanytarsus lacustris sp. nov. |
| USNM 722250 | Rheotanytarsus lacustris sp. nov. |
| USNM 722252 | Rheotanytarsus lacustris sp. nov. |
| USNM 722260 | Rheotanytarsus lacustris sp. nov. |
| USNM 722261 | Rheotanytarsus lacustris sp. nov. |
| USNM 722261 | Rheotanytarsus lacustris sp. nov. |
| USNM 722263 | Rheotanytarsus lacustris sp. nov. |
| USNM 722263 | Rheotanytarsus lacustris sp. nov. |
| USNM 722263 | Rheotanytarsus lacustris sp. nov. |
| USNM 722266 | Rheotanytarsus lacustris sp. nov.? |
| USNM 722268 | Chaoborus kishenehnicus sp. nov. |
| USNM 722270 | Rheotanytarsus lacustris sp. nov. |
| USNM 722286 | Rheotanytarsus lacustris sp. nov. |
| USNM 722286 | Rheotanytarsus lacustris sp. nov. |
| USNM 722286 | Rheotanytarsus lacustris sp. nov. |
| USNM 722286 | Rheotanytarsus lacustris sp. nov. |
| USNM 722288 | Rheotanytarsus lacustris sp. nov. |
| USNM 722288 | Rheotanytarsus lacustris sp. nov. |
| USNM 722295 | Rheotanytarsus lacustris sp. nov.? |
| USNM 722296 | Rheotanytarsus lacustris sp. nov. |
| USNM 722297 | Rheotanytarsus lacustris sp. nov. |
| USNM 722297 | Rheotanytarsus lacustris sp. nov. |
| USNM 722297 | Rheotanytarsus lacustris sp. nov. |
| USNM 722323 | Rheotanytarsus lacustris sp. nov. |
| USNM 722323 | Rheotanytarsus lacustris sp. nov. |
| USNM 722335 | cf. Stilobezzia |
| USNM 722352 | Rheotanytarsus lacustris sp. nov. |
| USNM 722353 | Rheotanytarsus lacustris sp. nov. |
| USNM 722354 | Rheotanytarsus lacustris sp. nov. |
| USNM 722369 | Rheotanytarsus lacustris sp. nov. |
| USNM 722370 | Rheotanytarsus lacustris sp. nov. |
| USNM 722370 | Rheotanytarsus lacustris sp. nov. |
| USNM 722371 | Rheotanytarsus lacustris sp. nov. |
| USNM 722377 | Rheotanytarsus lacustris sp. nov. |
| USNM 722377 | Rheotanytarsus lacustris sp. nov. |
| USNM 722379 | Hintelmannia noncatafractata sp. nov. |
| USNM 722379 | Rheotanytarsus lacustris sp. nov. |
| USNM 722397 | Rheotanytarsus lacustris sp. nov. |
| USNM 722399 | Culicomorpha mt 2 |
| USNM 722400 | Rheotanytarsus lacustris sp. nov. |
| USNM 722401 | Rheotanytarsus lacustris sp. nov. |
| USNM 722402 | Rheotanytarsus lacustris sp. nov. |
| USNM 722410 | Rheotanytarsus lacustris sp. nov. |
| USNM 722442 | Chaoborus kishenehnicus sp. nov. |
| USNM 722453 | cf. Stilobezzia |
| USNM 722459 | cf. Stilobezzia |
| USNM 722460 | Rheotanytarsus lacustris sp. nov. |
| USNM 722464 | Rheotanytarsus lacustris sp. nov. |
| USNM 722465 | cf. Stilobezzia |
| USNM 722471 | Chaoborus kishenehnicus sp. nov. |
| USNM 722477 | Rheotanytarsus lacustris sp. nov. |
| USNM 722479 | Rheotanytarsus lacustris sp. nov. |
| USNM 722521 | cf. Stilobezzia |
| USNM 722523 | Rheotanytarsus lacustris sp. nov. |
| USNM 722523 | Rheotanytarsus lacustris sp. nov. |
| USNM 722523 | Tanytarsus sp. |
| USNM 722528 | Rheotanytarsus lacustris sp. nov. |
| USNM 722545 | cf. Stilobezzia |
| USNM 722552 | cf. Stilobezzia |
| USNM 722556 | Rheotanytarsus lacustris sp. nov. |
| USNM 722556 | Rheotanytarsus lacustris sp. nov. |
| USNM 722556 | Rheotanytarsus lacustris sp. nov. |
| USNM 722557 | Rheotanytarsus lacustris sp. nov. |
| USNM 722557 | Rheotanytarsus lacustris sp. nov. |
| USNM 722557 | Rheotanytarsus lacustris sp. nov. |
| USNM 722557 | Rheotanytarsus lacustris sp. nov. |
| USNM 722557 | Rheotanytarsus lacustris sp. nov. |
| USNM 722560 | cf. Stilobezzia |
| USNM 722561 | Rheotanytarsus lacustris sp. nov. |
| USNM 722568 | cf. Stilobezzia |
