THE CRANE-FLIES oF New York — Part II 977 
The following keys separate the genera of the subfamily Tipulinae: 
Larvae 
. Spiracular disk surrounded by five lobes; living in moss....... Dolichopeza Curt. (p. sey 
Spiracular disk surrounded by four or six lobes, or with lobes indistinct............... 
. Spiracular disk with lobes indistinct; living in nearly solid or semi-decayed wood. 
Tanyptera Latr. (p. 988) 
Spiracularaiskpwabhylopesidistinctive.« nonstate ass ceca eee cee eee 
. Spiracular disk with four slender, hornlike lobes.......... Tipula (selene Meig.) (p. i, 
Spinacularrdiskawathysixlobes.)josee acidity ok stilts « x seals stents ¢ sass. 4 ais @iotenves dele miele 
eeAnalvoills pinnately branched: .......0....2... 0005s ve nae e ones Longurio Loew (p. 090) 
Aeshnasoma Johns. (p. oe 
aa soil enorme belymbOrAancChed.s< carci cicre 208 Peas se Resales tenors wi eheyarene apendie ecmicyei vieieye's 
. Antepenultimate segment of abdomen with a strong lateral tubercle. 
Oropeza Needm. (p. oe 
Antepenultimate segment of abdomen without such a tubercle...............-...-0-5 
. Dorsum of head behind antenna with a slender, flexible spine; living in wood. 
Ctenophora (apicata O. 8.) (p. — 
Dorstimorsheaduwathoutisuchva spines. .oas. sect sls is sie Soules oa ees oeemine cetsiee eae 
. Lobes surrounding spiracular disk elongate, digitiform, fringed with long hairs. 
Prionocera Loew (p. 995) 
Lobes surrounding spiracular disk less elongate.............0. 000 c cece cece eee eee 8 
. Size large (over 50 mm.); spiracular disk with the six moderately long lobes fringed with 
long hairs; mandible small, with a dorsal and a ventral tooth; found in western North 
ANTAETNCDY 50:6 ies 6 USCIS ERE Ie LSS Gere Holorusia Loew (p. 993) 
Size smaller; if large (7. abdominalis), the lobes surrounding disk bifid; mandible with 
twororthreeventral’ teeth, 225.5255. s5o. os Spee wena wnne ees Tipula Linn. (p. 998) 
Nephrotoma Meig. (p. 1016) 
Pupae 
. Pronotal breathing horns very long, slender, the longest one nearly if not quite half length 
Git GOGH s 0.9 4 Glo 5 od ORO OG Eee NBN he cae Oe ee IRIE I cs en Rete nec 2 
Pronotal eaieae horns short, cylindrical or flattened, subequal in size. : 3 
. Length 40 mm.; longest breathing horn 18 mm.; - maxillary palpi not recurved at. tips; 
venation with petiole of cell M, very short.................-.. Longurio Loew (p. 990) 
Length 20 mm.; longest breathing horn 9 to 10 mm.; maxillary palpi recurved at tips; 
venation with petiole cf cell M, longer..................... Prionocera Loew (p. 995) 
. Pronotal breathing horns short, compressed, deeply bicrenulated; living in wood. 
Tanyptera Latr. (p. a2) 
Eronobaljoreathineshorns cylindrical: fe. 4. 4e2ecace Yoo: +4 cmiacel © set cmmeine sake sks 
ae Viexdllanvapalpignourecunvied: atetipss amen. ate ae as lie cee c otto sce liea storia sieyelels of 5 
Misaillersy jorilion maguinyeol the whose ceaw somos vcd ote Cnt eOeoredo ccs Oech eo OonG ued or oder 6 
. Pronotal breathing horns with apices deeply split; mesonotum with two tubercles; 
abdominal segments with fourteen to thirty-four spines; found in Western States; 
IKinyatrayer Tiel Tat OO LS ase sori eRe eee eect ne ene oO CHOTA nen ORE oe Holorusia Loew (p. 993) 
Pronotal breathing horns short, slender, apices not split; mesonotum with eight tubercles; 
abdominal segments with four powerful spines near postericr margin; found in Southern 
Staves sivimodin WOO: . 281. sc. oot cist de ea tiius ele oe = so Brachypremna O. 8. (p. 984) 
. Mesonotum with two spines; ventral abdominal spines six to eight; fore and middle tarsi 
subequal, shorter than hind tarsi; living in wood........... Ctenophora Meig. (p. 288) 
CHAT OWSTS 101; ELE OXON Sorte 6 aiaieenemeaicie Dinie tos c-orcaae atte ace sina iiars iar oom een cers OIG a alow Cer 
. Mesonotum with a large, roughly triangular, reticulated area on either side of sat 
line; dorsum of cauda with four lobes......................- Oropeza Needm. (p. 982) 
Mesonotum unarmed or with four or six lobes; dorsum of cauda with six, or rarely four, 
NOI DES 5 os 0 Oo GI CACHED Rec ctO O IRCRERCIOIORT EAC OER Ce eR ROR SICERCn ae ne Tipula Linn. (p. 998) 
Nephrotoma Meig. (p. 1016) 
