Tur CRANE-Furrs oF New York — Part II 909 
phomyia but are longer in other genera, and the middle tarsi are usually 
shorter than the other legs. The abdominal segments are subdivided 
into two rings, the posterior ring with a transverse row of spines and 
setae before the margin. The lateral spiracles are small, protuberant, 
and, in some cases at least, apparently functional. The dorsum of the 
eighth abdominal segment is provided with four or five lobes, which are 
in some cases (as in some Ormosia) spinous at the tips. 
The writer has subdivided the tribe Eriopterini into two divisions: 
the Elephantomyaria, with Elephantomyia and presumably Toxorhina 
and Ceratocheilus, and the Eriopteraria, including the other Nearctic 
genera as known. It is probable that Cladura and its relatives will require 
a division when their immature stages are better known. 
The genera of the tribe Eriopterini may be separated by the following 
keys: 
: Larvae 
IES PITAcl amoiskasurrounded by four lobesy, sarc). cya sla ses fais) ols pohneeie verison - y 
SIR ACU ATES Ke NOL RASS AO OMEN fe tet seee oe hooks cle A wane ESS dea PEAR, Sateen) SME W ALU trea sian 3 
2. Ventral lobes with a single powerful seta; coloration a saturated golden yellow; lives 
LITO OTRID IE eee aay oe ee a ee Elephantomyra O. S. (p. 952) 
Ventral lobes fringed with short setae; coloration pale yellow; lives in earth. 
Rhabdomastiz Sk. (p. 942) 
3. Spiracular disk obliquely truncated, appearing indistinctly trilobed or without lobes. . .4 
Spiracular disk squarely truncated, surrounded by five lobes...................--.-. 5 
4, Mandibles with eight teeth; menial plates with seven teeth; lives in earth. 
Chionea Dalman (p. 950) 
Mandibles with less than eight teeth; mental plates not toothed; lives under bark. 
Teucholabis O. 8. (p. 945) 
5. Spiracular disk ending in five flattened black plates which are finely toothed along their 
TET AETITELY 6 o\s:6 Si cae See ear RE Eee eae Genus incertus, Eriopterine No. 1 (p. ee) 
SINAC ATAGISKGNOt ASI AOVEL ers: anieetrsya ea aos sis SiG = yes cnere take Cucketaus eter «tetolse) efeleie)aie 
6. Ventral plates of head capsule expanded and toothed at anterior ends..............-. : 
Werntralgplaces;mnotitoothed asiabOve.e i. 25s. ccc ete s elses crsie eee eier® etetonics eae slot 8 
7. Ventral plates with four teeth; coloration yellow; spiracular disk large, very heavily 
MHALKedewithiblackeswe she) pode h ee ee eine Sense Lo Molophilus Curt. (p. 911) 
Ventral plates with five to eight teeth; coloration green; spiracular disk very reduced, 
LIMO SHRUTI AT Ke Ueee sete ei ys eee Erioptera (chlorophylla O. 5) (p. 918) i 
SalViarksrofeallithe lobesisclidly black... 0.:2.0..5-205--1sc0-2+- Trimicra O. S. (p. 932) 
Some Ormosia Rond. (p. 922) 
Some of the marks more or less split by a pale lne.........-......0--.-.-+-------- 9 
9. The three dorsal lobes solidly dark, the ventral pair split by a pale line............. 10 
AMlgnameduopes split; byea palewdine. 16. :)o 0 | ors oe eee ape serene cae ob coe eile wieley oko 11 
10. Coloration saturated yellow; anal gills bluntly rounded; lives under bark. 
Gnophomyia O. S. (p. 934) 
Coloration pale yellow; anal gills elongate; lives in earth. 
Helobia St. Farg. et Serv. (p. 928) 
11. Lobes surrounding disk very stout, blunt; marks of lateral lobes surrounding spiracles 
and often suffusing disk........ Gonomyia Meig., subgenus Leiponeura Skuse (P. 939) 
Lobes surrounding disk longer; marks of lobes not so extensive........-.++++++5+-- 12 
