new species of Hxotic Tipulide. 367 
oribus, setosis, articulis 8tio ad apicalem nodosis, nodo 
apicem singuli articuli occupante, articulo sequenti in 
dorsum lobi oblique insidente; articulis apicalibus sen- 
sim gracilioribus; thorace nigro, halteribus flavis; ab- 
domine maris elongato depresso setoso fulvo, apice fusco; 
pedibus longis gracilibus, femoribus fulvis apice obscuri- 
oribus, tibiis apice inermibus, tarsisque pallide fuscis; alis 
pallide flavis, macula subbasali, fascia paullo pone medium 
alz, apiceque fuscis ; cellulis duabus discum ale occupan- 
tibus eque longis; cellula nulla vera discoidali. Long. 
corp. 5 lin.; abdom. 34 lin. Expans. alar.11 lin. Long. 
antenn. 4 lin. 
Hab. Amazonia (Bates). In Mus. Hopeiano Oxonie. 
The Baron Osten-Sacken has favoured me with the 
following notes on this insect :— 
‘“‘T would place this species, at least provisionally, inthe 
genus Sigmatomera, the typical species of which S. jlavi- 
pennis, from Mexico, is published in the Additions and 
Corrections to Mon. N. Am. Dipt. vol. iv., which are placed 
at the end of vol. ii1., because it appeared much later than 
vol. iv. Your species has nearly the same venation as 
Sigmatomera, only the discal cell is open, which is a 
character of secondary importance only. Sigmatomera 
has the same remarkably nodose antenne, although the 
details of their structure are somewhat different. It has. 
the same large, convex, approximate eyes, and, more 
important than all, no spurs at the tip of the tibie. 
This last character I hold to be a decisive proof of the 
relationship, as well as of the systematic position of both 
species. They belong to that small group of Tipulide 
brevipalpt that have the characters and habitus of the 
section Limnophilina, but no spurs at the tip of the 
tibia, which gives them an artificial position in the 
section Hriopterina. That your antenne count fifteen 
joints, and not sixteen, the normal number, I look 
upon as unimportant, as the last jomtis often a mere 
rudiment.” 
Ertocera, Macquart. 
Eriocera lunata, n.s. (Pl. XVIIL., fig. 4.) 
Affinis H. selene, Osten-Sacken, Enum. Dipt. Malayan 
Archipel. p. 18. 
Badia, thorace glabro nitido, abdomine luteo-brunneo, 
antennis longissimis fuscescentibus articulis duobus 
