The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica. Longino, J. T. Zootaxa 2003 151 1 150 urn:lsid:biosci.ohio-state.edu:osuc_concepts:182987 Insecta Formicidae Crematogaster CoL Animalia Crematogaster monteverdensis Longino Hymenoptera 89 Arthropoda species monteverdensis  Range Costa Rica.  Description of worker Differing from sumichrastiin the following respects: tibiae with abundant suberect setae, but more uniform in length and none longer than maximum width of tibia ( sumichrastihas one or more long macrosetae, subequal in length to twice maximum tibia width); pronotal dorsum with stronger longitudinal carinulae; dorsal and posterior faces of mesonotum meeting at an angle but angle less strongly produced, not tuberculate; dorsal pilosity generally shorter. Measurements Holotype: HL 0.702, HW 0.739, HC 0.685, SL 0.584, EL 0.192, WL 0.777, SPL 0.145, PTH 0.178, PTL 0.239, PTW 0.210, PPL 0.183, PPW 0.228, CI 105, OI 27, SI 83, PTHI 74, PTWI 88, PPI 125, SPI 19. Other specimens: HL 0.726, 0.639, 0.718; HW 0.799, 0.686, 0.772; HC 0.732, 0.636, 0.699; SL 0.605, 0.554, 0.601; EL 0.199, 0.182, 0.208; A11L 0.248; A11W 0.135; A10L 0.114; A10W 0.119; A09L 0.076; A09W 0.093; A08L 0.057; A08W 0.074; WL 0.840, 0.719, 0.832; SPL 0.145, 0.134, 0.156; PTH 0.195, 0.184, 0.181; PTL 0.249, 0.222, 0.228; PTW 0.220, 0.206, 0.224; PPL 0.180, 0.151, 0.176; PPW 0.246, 0.220, 0.235; CI 110, 107, 108; OI 27, 28, 29; SI 83, 87, 84; PTHI 78, 83, 79; PTWI 88, 93, 98; PPI 137, 146, 134; SPI 17, 19, 19; ACI 0.24. Queen A normal queen (dorsal face of propodeum drops steeply from postscutellum and much of propodeum appears ventral to scutellum and postscutellum, Fig. 1) with general shape, sculpture, and pilosity characters of the worker; size characters as in Figures 4 and 5.  Etymology This species is named after its type locality.  Biology  Crematogaster monteverdensisinhabits moist forest areas in the Monteverde community area in the Cordillera de Tilaranand at a similar elevation on Cerro Cacao in the Cordillera de Guanacaste. I first encountered the species in Monteverde, where I observed workers and the small, dealate queens foraging together on the outside walls of a house. Subsequent collections were from nests in dead branches, either in recent treefalls or on the ground. These collections were generally located at pasture/forest edges. Nests were polygynous, with multiple dealate queens. Workers could be recruited to baits of mixed honey and solid vegetable oil. I have never seen alate queens, and one nest collection contained small apterous males similar to Wheeler's description of the males of atitlanica (Wheeler1936, see under sumichrasti).  Comments The two closely related species monteverdensisand sumichrastiare uniquely characterized by the combination of yellow coloration, relatively long, upturned propodeal spines, and long flexuous posterolateral mesonotal setae that are subequal in length to humeral setae. The only difference is that Crematogaster sumichrastihas one or two extremely long setae on the tibiae. I identified monteverdensisspecimens first as sumichrastiuntil I discovered the consistent differences in tibial pilosity and promesonotal profile. Crematogaster sumichrastiseems to have a microparapatric distribution with monteverdensis, because typical sumichrastioccur just downslope from Monteverde, at 700m elevation on the road down to the PanAmerican Highway. 1058481268 1991-06-26 INBC Longino Costa Rica 10.3333333 Santa Elena, 1500m 3km N -84.8333333 JTLC 000001403 Prov. Guanacaste Holotype 1058481265 1991-06-26 INBC Longino Costa Rica 10.3333333 Santa Elena, 1500m 3km N -84.8333333 JTLC 000001404 Prov. Guanacaste Paratype 1058481272 1991-06-26 BMNH Longino Costa Rica 10.3333333 Santa Elena, 1500m 3km N -84.8333333 JTLC 000001405 Prov. Guanacaste Paratype 1058481257 1991-06-26 LACM Longino Costa Rica 10.3333333 Santa Elena, 1500m 3km N -84.8333333 JTLC 000001406 Prov. Guanacaste Paratype 1058481262 1991-06-26 MCZC Longino Costa Rica 10.3333333 Santa Elena, 1500m 3km N -84.8333333 JTLC 000001407 Prov. Guanacaste Paratype 1058481252 1991-06-26 MHNG Longino Costa Rica 10.3333333 Santa Elena, 1500m 3km N -84.8333333 JTLC 000001408 Prov. Guanacaste Paratype 1058481263 1991-06-26 NHMB Longino Costa Rica 10.3333333 Santa Elena, 1500m 3km N -84.8333333 JTLC 000001409 Prov. Guanacaste Paratype 1058481260 1991-06-26 USNM Longino Costa Rica 10.3333333 Santa Elena, 1500m 3km N -84.8333333 JTLC 000001410 Prov. Guanacaste Paratype 1058481277 1991-06-26 UCDC Longino Costa Rica 10.3333333 Santa Elena, 1500m 3km N -84.8333333 JTLC 000001411 Prov. Guanacaste Paratype