1914] Alexanier—New or Little-known Neotropical Hexatomint 37 
Scape of the antennz brownish-black; legs blackish-brown except base of fore 
femur; Sc: shorter than Sci. (Mexico.)................. townsendi, sp. n. 
26. Color metallic blue with head orange-red. (Panama.)........ lessepst O. S.11 
Colormot metalicmbinexnmry A ie See erase Oak oes cin vensNie oteoleoienega vias ates Q7 
rgd Matayes rortey ayer cecaus lest Gi ie aa tee AAR a Pana er UR 28 
PPh HA CIe pISESCLIEMEIM LACKS hess oh te Gielen se oie hn tes a cide Secs ai cn de alee oye sons 29 
28. Frontal tubercle red; scutellum black. (Mexico.)......... hemorrhoa O. §.18 
Frontal tubercle black; scutellum red. (Guatemala. ) Pe Aeticty. erythrea O. 5.19 
DOMErontal tubercle Orange, facac ye wee ok Ae nee ere verdes s sicie sikece otic ote 30 
Rrontalsthuberctedblachksnssucee wer tee: cosh ieivaiccks = ieacioiees Sec mene aan: gees 31 
30. Abdominal segments 3-5 with basesred dish. (Mexico.)....... gracilis O. 8.2 
Abdominal segments altogether black. (Colombia.).........macquarti Fnd2 
31. Wings luteous, blackish toward the tips. (South America.) chrysoptera Walk 
Wanresarmosthyablackisinn armen crete eit eaeye ctrey tate «2 ciate nvexcdn vewtleyen« 32 
32. Wings brown, darker along costa; cells uniform; wings not reddish-yellow at 
basisea(Miexicon) arr Or nena tott: secre. amen ee ae lace pretiosa O. 8.23 
Wings brown, either reddish-yellow at base or else with hyaline in some of the 
(CaGie = mca here a plan RRS aD ne By OR ISIE CR Gr a es ee eae eee 33 
33. Wings a little reddish-yellow at base. (Brazil.)............... nigra Wied.24 
Wings blackish, some of the cells with nearly hyaline streaks. (South America.) 
5 aeco Sick cr Once ORCC UcRel a EN GEN nen Once Neco C NCHS bs AE CR TE Rete tenebrosa Walk.2s 
The following species are not included in the above key: 
Penthoptera fuliginosa Schiner;?6 (Colombia) shining _ pitch- 
black; femora with a broad yellowish-red ring immediately beyond 
the base; head, antenne and palpi black; wings tinged with brown, 
more saturated on costal margin. Osten Sacken, (Studies on 
Tipulide, pt. 2, p. 224), suggests that this is an Eriocera. 
Limnobia flaviceps Wied.;?’ (Brazil) thorax and abdomen black, 
forehead fiery yellow; antennz black. Venation (PI. 6 b; fig. 10) 
like Eriocera but cell R: very short.. 
Eriocera magnifica sp. nov. 
Dark brownish-black including the head; wings dark with a broad pale yellow 
postmedian band. 
17 Osten Sacken, C. R.; Biologia Cent. Amer.; Dipt.; vol. I, p. 13; 1886. 
18 Osten Sacken, C. R.; ibid.; p. 11. 
19 Osten Sacken, C. R.; 1. ec. 
20 Osten Sacken, C. R.; 1. ¢.; p. 12. 
21 Enderlein, G.; Zodl. Jahrb.; vol. 32, pt. I; p. 45; 1912. 
22 Walker, F.; Insecta Saundersiana; vol. I; p. 488; (Limnobia); 1856. 
23 Osten Sacken, C. R. R.; Biol. Cent-Amer.; Dipt.; vol. I, p. 12; 1886. 
24 Wiedemann, J.; Aussereur. zweifl. Insekt.; vol. I, p. 27; (Limnobia); 1828. 
25 Walker, F.; Insecta Saundersiana; vol. I, p. 439, 440; (Limnobia); 1856. 
2; Schiner; Reise Novara; p. 42. (Penthoptera); 1868. 
27 Wiedemann, Aussereur. zweifl. Insekt; vol. I, p. 550; (Limnobia); 1828. 
