Eucerini

• Main Author: Vivallo, Felipe
• Format: Text
• Language: unknown
• Published: Zenodo 2009
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Hymenoptera; Apidae; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.5281/zenodo.6214622; https://zenodo.org/record/6214622

Key for the Chilean species of Eucerini 1 Males........................................................................................................................................................................... 2 - Females....................................................................................................................................................................... 26 2 Gradulus of T 6 produced as spine-like processes on each side.................................................................................. 3 - Gradulus of T 6 not as above....................................................................................................................................... 8 3 F 1 longer than F 2; paraocular area yellow; clypeus uniformly yellow; labrum black; hind femur with a spine-like process at midlength; hind basitarsus strongly modified................................................................... Eucerinoda gayi - F 1 shorter than F 2; paraocular area black; clypeus yellow with black spots; labrum yellow; hind legs unmodified 4 4 S 6 without posteriorly convergent carinae................................................................................ Melissodes ecuadoria - S 6 with posteriorly convergent carinae...................................................................................................................... 5 5 Prestigma clearly longer than pterostigma....................................................................................... Svastra flavitarsis - Prestigma almost as long as the pterostigma (genus Melissoptila )............................................................................ 6 6 Apex of F 10 modified; F 11 laterally compressed; middle and hind legs strongly modified. Melissoptila tandilensis - F 10 and F 11 unmodified (uniformly cylindrical); middle and hind legs unmodified.................................................. 7 7 Clypeal disc relatively flat; ocellocular area with dense pilosity, covering the integument; terga with a apical translu- cent band very narrow or absent..................................................................................................... Melissoptila dama - Clypeal disc uniformly convex; pilosity on ocellocular area not very dense, integument visible beneath hairs; terga with wide apical translucent band................................................................................................ Melissoptila chilena 8 S 6 with posteriorly convergent carinae...................................................................................................................... 9 - S 6 without posteriorly convergent carinae (genus Alloscirtetica )............................................................................ 11 9 Distal margin of the labrum uniformly rounded; antenna not reaching T 2; mandible with subapical tooth................. ....................................................................................................................................................... Peponapis citrullina - Distal margin of the labrum with a apical cavity; antenna reaching at least T 3; mandibular apex without subapical tooth (genus Svastrides )............................................................................................................................................ 10 10 Basal half of clypeal disc black; T 4 to T 7 without white pilosity................................................ Svastrides melanura - Clypeal disc completely yellow; T 4 to T 7 with lateral white pilosity .......................................... Svastrides orellanae 11 Clypeal disc yellow or at least with a small spot of that color................................................................................. 12 - Clypeus dark brown or black..................................................................................................................................... 22 12 Labrum with yellow areas......................................................................................................................................... 13 - Labrum black............................................................................................................................................................. 18 13 Labrum with yellow spot and black edges................................................................................................................. 14 - Labrum completely yellow........................................................................................................................................ 15 14 T 2 to T 5 with apical band of white pilosity, widely interrupted in the middle; rest of metasoma with black pilosity. ......................................................................................................................................... Alloscirtetica danuncia n. sp. - T 2 to T 5 with uninterrupted apical band of white pilosity; rest of metasoma with whitish or yellowish pilosity............................................................................................................................................................. Alloscirtetica cinerea 15 Dorsal pilosity on mesosoma yellow or orange; terga with apical bands of yellow pilosity.. Alloscirtetica weyrauchi - Dorsal pilosity on mesosoma greyish; metasoma without bands.............................................................................. 16 16 Dorsal pilosity on mesosoma greyish; anterior area of middle ocellus depressed as semicircle................................... ............................................................................................................................................. Alloscirtetica gelida n. sp. - Dorsal pilosity on mesosoma whitish or yellowish; anterior area of middle ocellus depressed as triangle.............. 17 17 Terga with apical translucent bands; T 2 to T 7 with white and short pilosity............................. Alloscirtetica chilena - Terga without apical translucent bands; T 2 to T 2 with black pilosity........................................ Alloscirtetica porteri 18 Clypeal disc covered by abundant white pilosity; labrum covered only with white pilosity ............ Alloscirtetica gayi - Clypeal disc without hairs, pilosity only on the sides; labrum with black pilosity, if there are white hairs, they are scarce......................................................................................................................................................................... 19 19 Frontal area with black pilosity .............................................................................................. Alloscirtetica vagabunda - Frontal area with white or yellowish pilosity............................................................................................................. 20 20 Frontal area and metasoma with yellow pilosity .......................................................................... Alloscirtetica herbsti - Frontal area with white pilosity; metasoma with black and white hairs intermixed or forming apical bands on some terga............................................................................................................................................................................. 21 21 Hind tibiae with white and branched pilosity .................................................................... Alloscirtetica valparadisaea - Hind tibiae with dark brown and simple pilosity, if branched hairs, they are scarce .............. Alloscirtetica tristrigata 22 Head and legs with whitish or yellowish pilosity ...................................................................... Alloscirtetica frieseana - Head and legs with dark brown or black pilosity....................................................................................................... 23 23 At least T 3 and T 4 covered by white and long hairs ..................................................................... Alloscirtetica lanosa - At least T 3 and T 4 with black pilosity....................................................................................................................... 24 24 Clypeal disc with smooth longitudinal line ................................................................................ Alloscirtetica gazullai - Clypeal disc without longitudinal line........................................................................................................................ 25 25 Gena with white pilosity; antennae orange brown ................................................................... Alloscirtetica antarctica - Gena with dark brown pilosity; antennae dark brown or black ................................................. Alloscirtetica rufitarsis 26 Gradulus of S 2 uniformly convex ........................................................................................................ Eucerinoda gayi - Gradulus of S 2 biconvex............................................................................................................................................. 27 27 Clypeus strongly protuberant; hind basitarsus with hairs of inner surface sparse, except for a narrow band of dense hairs near lower margin .................................................................................................................. Peponapis citrullina - Clypeus not or little protuberant; hind basitarsus with uniform dense pilosity.......................................................... 28 28 Apical half of clypeus yellow............................................................................................................ Svastra flavitarsis - Clypeus uniformly black............................................................................................................................................. 29 29 Sector of vein r on margin of 2 nd submarginal cell shorter than vein 1 °rm (genus Alloscirtetica )............................. 35 - Sector of vein r on margin of 2 nd submarginal cell longer or equal in length to vein 1 °rm........................................ 30 30 Tibial scopa black (genus Svastrides )......................................................................................................................... 31 - Tibial scopa yellow..................................................................................................................................................... 32 31 T 3 with basal band of white pilosity; T 4 without white pilosity................................................... Svastrides melanura - T 3 without band of white pilosity; T 4 with a tuft of white pilosity on each side........................ Svastrides orellanae 32 Prestigma clearly longer than the pterostigma; metasoma with black pilosity and basal bands of yellow hairs.......... ..................................................................................................................................................... Melissodes ecuadoria - Prestigma and pterostigma similar in length; metasoma with black pilosity and with bands of white pilosity or com- pletely covered with yellow pilosity (genus Melissoptila )........................................................................................ 33 33 Metasoma with black pilosity and white bands from T 1 to T 4, widely interrupted on T 1 and T 2................................................................................................................................................................................ Melissoptila tandilensis - Metasoma covered with yellow pilosity................................................................................................................... 34 34 Base of mandible yellow; tegula and veins yellowish brown......................................................... Melissoptila dama - base of mandible mahogany; tegula and veins dark brown......................................................... Melissoptila chilena 35 Mesosoma completely covered by dark brown or black pilosity.............................................................................. 36 - mesosoma with black pilosity only on mesepisternum or absent.............................................................................. 39 36 Pronotal lobe with white pilosity; mesoscutum with light brown pilosity........................... Alloscirtetica vagabunda - Pronotal lobe with black pilosity; mesoscutum with dark brown or black pilosity.................................................... 37 37 F 2 to F 9 black; basis of middle tibiae with tuft of white pilosity.................................................... Alloscirtetica gayi - F 2 to F 9 orange; middle tibiae completely covered with dark brown or black pilosity........................................... 38 38 Apex of pygidial plate acute; tegulae light brown, almost translucent....................................... Alloscirtetica porteri - Apex of pygidial plate broadly rounded; tegulae dark brown ...................................................... Alloscirtetica chilena 39 Mesosoma with dorsal pilosity yellowish or orange................................................................................................ 40 - Mesosoma with dorsal pilosity white, brown or gray, at least dorsally.................................................................... 43 40 Head, mesepisternum, legs and metasoma, except T 1 with black pilosity............................ Alloscirtetica antarctica - Head, mesepisternum, legs and metasoma with whitish or yellowish pilosity.......................................................... 41 41 Base of mandible yellow .............................................................................................................. Alloscirtetica herbsti - Base of mandible dark brown or black...................................................................................................................... 42 42 Tibial scopa with simple and yellowish pilosity......................................................................... Alloscirtetica cinerea - Tibial scopa with branched and dark brown pilosity............................................................. Alloscirtetica weyrauchi 43 Tibial scopa with yellowish/ light brown pilosity ............................................................... Alloscirtetica gelida n. sp. - Tibial scopa with dark brown pilosity...................................................................................................................... 44 44 T 2 to T 4 with apical band of white pilosity (complete or interrupted in the middle of T 2....................................... 45 - T 2 to T 4 without apical band of white pilosity.......................................................................................................... 46 45 Frontal area with white pilosity; T 2 with apical band of white pilosity uninterrupted .......... Alloscirtetica tristrigata - Frontal area with dark brown or black pilosity, T 2 with apical band of white pilosity widely interrupted in the middle ................................................................................................................................................... Alloscirtetica frieseana 46 Mesepisternum with black pilosity............................................................................................................................ 47 - Mesepisternum with white pilosity............................................................................................................................ 48 47 T 2 completely covered by white pilosity................................................................................... Alloscirtetica gazullai - T 2 pilosity with black, if white hairs, they are scarce and located only at the basis of terga .... Alloscirtetica rufitarsis 48 T 2 to T 6 with dark brown or black pilosity; apex of tibial spurs strongly curved ....................... Alloscirtetica lanosa - T 2 to T 6 mostly with white pilosity, with some black hairs intermixed; apex of tibial spurs almost straight............... ........................................................................................................................................... Alloscirtetica valparadisaea : Published as part of Vivallo, Felipe, 2009, Notes on the bee genus Alloscirtetica Holmberg, 1909 in northern Chile with the description of two new altiplanic species and a key for the Chilean species of Eucerini (Hymenoptera: Apidae), pp. 16-30 in Zootaxa 2010 on pages 27-29, DOI: 10.5281/zenodo.185792