20. 
THe CRANE-FirEes oF New York — Part II 795 
Mental plates not completely divided; abdominal segments with basal creeping-welts 
on both ventral and dorsal surface; spiracular disk indistinctly four- or five-lobed. 
Limnobiini (p. 795) 
Mental plates completely divided; abdominal segments without welts; spiracular disk 
Ole lycra Led awun sens whe cokepcuetencu sioner nlite ic et crerni Saba le ee anys: ae Eriopterini (p. 908) 
Pupae 
. Pronotal breathing horns eight-branched; forms entirely aquatic. 
Limnobiini, subtribe Antocharia (p. ee 
Pronotal breathing horns simple, unbranched.....................00 000 cee cece eee 
. Rostral sheath elongated; lives in wood. . Friopterini, subtribe Elephantomyaria (p. 959) 
iRostralusheathnunotyclonga ted sn.s, a5 wy an eee ak atch oielne-s oer areteree 3 
. Pronotal breathing horns very minute, conical, visible only with a lens.é 
Limnobiini, subtribe Dicranoptycharia (p. oe 
Pronotal breathing horns larger, not microscopic. .............. 00. c eee e ee ee eee eeee 
4. Dorsal spiracles on eighth abdominal segment large and functional.............. Nee. 5 
Dorsal spiracles on eighth abdominal segment small or Jacking...................... u 
5. A large circular spinous area on abdominal pleurites; cephalic crest chitinized, acutely 
10. 
Ii 
pointed; pronotal breathing horns directed ventrad; lives in decaying wood. 
Hexatomini, subtrike Epiphragmaria (p. 843) 
INO BS) QIOONRES ofa che a waenper Mee echo One ro ce eee ee eee ee Gee oe eo ee 6 
. Pronotal breathing horns large, flattened, the tips yellow; abdominal tergites with 
shagreened crossbands..............2.0e0002. Hexatomini, subtribe Ularia (p. 838) 
Pronotal breathing horns slender, cylindrical; abdominal tergites with tranverse rows of 
SmrallEspinesip awn: shh te Ake eine ans = Limnobiini, subtribe Rhamphidaria (p. 830) 
. Abdominal pleurites with circular areas set with numerous microscopic spicules; pronotal 
breathing horns short, usually truncated at tips, which are margined with the breathing 
[DORES Ss oo cho 6 6 CORI Ne Be CUE EO ic ee aren ree ane ne Pediciini (p. 894) 
Abdominal pleurites not as above, if with spines these large and few in number; pronotal 
brea himeshorms longs cylindrical css. ee sees sre cis ro oe ei ee a oe ss 8 
. Abdominal segments with broad transverse bands or welts on basal rings of third to 
BEVEMUMMberoites wn tes sok Fe ee Ake Se ree We hes tn aso eeeeu Limnobiini (p. 795) 
Abdominal segments with basal ring unarmed as above, posterior ring before margin 
with a transverse row of spines or stiff setae. ...-. 2... ee ee eee 9 
. A distinct crest on mesonotal prescutum armed with tubercles, spines, or setae; size 
sonal (usmalllhy wine lee Oranmong sem cue dcleos ob dpocedsboonoosaeoecs. Eriopterini (p. 908) 
No distinct crest on mesonotal prescutum (scutellum armed in some Eriocera); size 
lanzex(usuallyaoverlOimins) 5 sucrose a eae t eee ane 10 
Leg sheaths very short, barely exceeding wings; lives under bark. 
Eriopterini, genus Gnophomyia (p. oe 
Leg sheaths longer, extending one or more segments beyond tips of wings........... 
Size small (under 6 mm.); abdominul armature weak, lacking on segment 7. 
Pediciini, subtribe Adelphomyaria (p. 895) 
Size larger; abdominal armature stronger, spinous; if small in size (Dicranophragma), 
basal annuli of abdominal segments armed with naked tubercles. . Hexatomini (p. 835) 
Tribe Limnobiini 
A large group of crane-flies, arranged in a few often extensive genera, 
comprise the tribe Limnobiini. At first sight the tribe appears to be a 
6In the genus Cladura (Eriopterini), reared while this paper was going thru the press, the breathing 
pores are likewise microscopic, being entirely sessile (page 949). 
