A Report on the Tabanidae of La Selva Biological Station and 1070m in Braulio Carrillo National Park

Taxonomic Collaborator: John F. Burger, Department of Zoology, Spaulding Hall University of New Hampshire, Durham, New Hampshire 03824 USA.

Page author: John T. Longino, The Evergreen State College, Olympia WA 98505 USA.longinoj@evergreen.edu

Contents:
Alphabetical list of La Selva species
Alphabetical list of species from 1070m site
Table of comparative abundances for the two sites
Species accumulation curves for the two sites
INBio's species pages for the Tabanidae of Costa Rica (click here). This is an excellent resource, with images of all the species and complete species accounts, including geographic range and natural history data.
49 species are known from La Selva. 7 species were collected by the Malaise trap program only. 15 species were collected by other methods only (hand netting, species list from Henry Hespenheide, canopy fogging). 27 species were collected by both Malaise and other. 143 species are known for Costa Rica as a whole. Thus roughly a third of the larger regional fauna can be found sympatrically in one lowland rainforest community. 

Bolbodimyia galindoi
Catachlorops fulmineus
Catachlorops fulmineus var. ocellatus
Chlorotabanus mexicanus
Chrysops auroguttatus
Chrysops melaenus
Chrysops nexosus
Chrysops scalaratus
Chrysops sp 001
Chrysops varians vargus
Chrysops variegatus
Diachlorus curvipes
Diachlorus ferrugatus
Dichelacera fasciata
Dichelacera marginata
Dichelacera princessa
Dichelacera rex
Dichelacera transposita
Fidena eriomeroides
Fidena flavipennis
Fidena trapidoi
Himantostylus intermedius
Lepiselaga crassipes
Leucotabanus exaestuans
Leucotabanus flavinotum
Phaeotabanus longiappendiculatus
Philipotabanus elviae
Philipotabanus magnificus
Philipotabanus nigrinubilus
Philipotabanus pallidetinctus
Philipotabanus plenus
Poeciloderas quadripunctatus
Stenotabanus incipiens
Stibasoma apicimacula
Stibasoma fulvohirtum
Stibasoma panamensis
Stypommisa capitiroptera
Stypommisa pequeniensis
Stypommisa sp 001
Tabanus albocirculus
Tabanus defilippii
Tabanus erebus
Tabanus occidentalis var. modestus
Tabanus occidentalis var. dorsovittatus
Tabanus pseudoculus
Tabanus punctipleura
Tabanus secundus
Tabanus surifer
Tabanus unistriatus
8 species are known from the 1070m site: 
Bolbodimyia erythrocephala
Fidena rhinophora
Philipotabanus medius
Philipotabanus pallidetinctus
Poeciloderas quadripunctatus
Scione costaricana
Scione maculipennis
Stypommisa changena
Table 1. Comparison of abundances at La Selva and 1070m site. Abundances are total individuals across all samples. Sampling is based mainly on Malaise traps. Note that only two species are shared, one that is common at La Selva and rare at the 1070m site, and one vice versa.

species La Selva 1070m
Tabanus occidentalis var. dorsovittatus 60 0
Tabanus albocirculus 48 0
Dichelacera princessa 44 0
Diachlorus curvipes 42 0
Tabanus unistriatus 24 0
Tabanus secundus 21 0
Poeciloderas quadripunctatus 16 2
Catachlorops fulmineus var. ocellatus 13 0
Diachlorus ferrugatus 13 0
Leucotabanus exaestuans 13 0
Tabanus punctipleura 13 0
Chlorotabanus mexicanus 12 0
Stenotabanus incipiens 11 0
Chrysops scalaratus 9 0
Dichelacera marginata 9 0
Fidena trapidoi 9 0
Fidena flavipennis 6 0
Leucotabanus flavinotum 6 0
Stypommisa sp 001 6 0
Chrysops melaenus 5 0
Chrysops variegatus 5 0
Philipotabanus nigrinubilus 5 0
Tabanus occidentalis var. modestus 5 0
Philipotabanus pallidetinctus 4 26
Catachlorops fulmineus 4 0
Dichelacera fasciata 4 0
Stibasoma panamensis 4 0
Chrysops auroguttatus 3 0
Tabanus defilippii 3 0
Bolbodimyia galindoi 2 0
Chrysops sp 001 2 0
Philipotabanus elviae 2 0
Stibasoma apicimacula 2 0
Stibasoma fulvohirtum 2 0
Tabanus erebus 2 0
Tabanus pseudoculus 2 0
Chrysops nexosus 1 0
Chrysops varians vargus 1 0
Dichelacera rex 1 0
Dichelacera transposita 1 0
Fidena eriomeroides 1 0
Himantostylus intermedius 1 0
Lepiselaga crassipes 1 0
Phaeotabanus longiappendiculatus 1 0
Philipotabanus magnificus 1 0
Philipotabanus plenus 1 0
Stypommisa capitiroptera 1 0
Stypommisa pequeniensis 1 0
Tabanus surifer 1 0
Scione maculipennis 0 219
Philipotabanus medius 0 22
Scione costaricana 0 17
Bolbodimyia erythrocephala 0 2
Fidena rhinophora 0 1
Stypommisa changena 0 1
Species accumulation curves based on Malaise trap samples at La Selva and 1070m site:

Figure 1. Species accumulation curves for La Selva and 1070m site, based on Malaise trap samples. Horizontal axis is number of samples (contrast with Figure 2, which shows curves based on number of individuals). The curves approach linearity with increased sampling, showing typical close fit to logarithmmic curves. The relative slopes of the linear portions of the curves show the dramatically lower diversity at the 1070m site and the complementarity of the two sites. Click here for a more traditional species accumulation curve with arithmetic x-axis.

Figure 2. Species accumulation curves for La Selva and 1070m site, based on Malaise trap samples. Horizontal axis is number of individuals (contrast with Figure 1, which shows curves based on number of samples). The curves are similar to curves for samples, showing similar species density for the two sites. Click here for a more traditional species accumulation curve with arithmetic x-axis.

Date of this version: 4 January 2004.
Previous versions of this page: 10 January 2003
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