Arkansas Robber Fly Maps


This is a list of links to the current known ranges of the Asilids in Arkansas. These maps will be constantly updated as information is improved. Presently this serves as a baseline for further addition. The black circles represent specimens present in the University of Arkansas collection in Fayetteville as of March 2010 which are maintained currently by Doctor Jeff Barnes. Red records are mine and green records are from Norm Lavers. The vast majority of these are also represented by specimens we have now turned over to Dr. Barnes. Records with central black circles are represented by specimens in UA. Dark blue records are from Scarbroughs 1960's survey of northeast Arkansas. Some of these have been overwritten by Norm Lavers. These specimens were split between Scarbrough's personal collection and the residual collection at ASU. In 2005 Scarbrough donated many of these to the University museum and they are now a part of the permanent collection. The rare pink with red centered records were collected by Giff Beaton and Mike Thomas in 2006 in the SW part of the state mostly.

Some of the more common and easily identified robber flies have some sight records included on the maps. As more Asilids become known by their visual markings, then more sight records will be possible. Some records (such as Bob Barber's Albibarbefferia albibarbis) are from photographic records. This is also a possible method for adding records in some other groups with very good photos. Most Diogmites, all the Ommatius and the smaller species in various other genera, as well as the difficult Leptogaster genus, will, unfortunately, always require specimens. The map for Laphria index includes black inside red circles that are the females which I think I can separate from Laphria ithypyga after close study.

Arkansas had been poorly studied for Asilids. This is true of most of the states except possibly Texas or California which has absorbed a conglomeration of the Asilid scientists. Possibly because they have 400 species of Asilidae in that state. We now have specimens of about 110 of the likely 150 species or so in Arkansas. Anyone in Arkansas who is working on these should contact Dr. Barnes for centralization of information. I will be happy to look at photos of any eastern species, especially species in Arkansas. Not that I can yet identify them all, but I would be happy to look at them. The unknown species of Ommatius is being reviewed. It was taken in teh Fayetteville area by Edward Trammel. The unknown Laphria is from Baxter county and has stumped everyone from Barnes to Bullington. It is related to the index/ithypyga group but is neither species. It is a male.

The map links are listed in alphabetical order for easy access and are not in taxonomic order. None of the robber flies presently have official common names. (For the taxonomic order see my AR Asilid list.) Maps without a link are documented by specimens but I don't yet have the specimen county locations.

Numerals are the months of collection (1-12) from the extensive Robber Flies of Georgia survey from P. W. Fattig published in 1945. Blue numbers are months added in Arkansas outside the Georgia dates.  Red numbers are Texas dates which are included for some species without reported Georgia dates and to extend the documented flight months. Bracketed dates are early and late times out of the Texas survey (black) from S. W. Bromley in 1934 where they were reported, or our recorded AR dates (blue). Early extreme dates in Texas are likely earlier by at least two weeks than the same species emergences in Arkansas.


Albibarbefferia albibarbis 5-8

Andrenosoma fulvicaudum 4,7,8

Apachekolos tenuipes 7,9

Asilus sericeus 5,6,7 [July 16]


            arkansensis 5-7 [May 25, Jul 22]

            glabrata 5,7,8,9 [Jul 9, Sept 18]

            melanopogon 5-8,9 [(May 25) Jun 16, Aug 18 (Sept 2)]

            mucida 6

            puella 5-8,9 [May 9 (May 18), Sept 11]

            rufipes 6,7,8,9 [Jun 9, Sept 15]

            sayii 4,5-7,8,9 [Jun 4, Sept 13]

Beameromyia vulgaris


            cornutus 6 [June 7, June 17]

            cruciatus 5

            elizabethae 6 [9 June, 30 June]


            albipilosa 6-9

            macrocera 4,6,7,8

Cyrtopogon lutatius 4,5,6 [April 10]

Dicropaltum rubicundus 6,7


            angustipennis 6,7-10 [Jun 11, Oct 14 (Oct 21)]

            basalis 8,9

            bilobatus 7

            discolor 7,8,9 [July 23]

            misellus 6-9

            missouriensis 6-8

            neoternatus 6-8

            platypterus 6,7,8,9,10


            properans 6-9


            texanus 8


            formosa 4,5,6 [April 12]

            pubera 5

Eudioctria tibialis 5,6

Heteropogon macerinus 8,9 [Sept 9]


            calva 7,8,11

            fusca 6-9

Holopogon phaeonotus 5,6,11 [Nov 7]


            bicolor 6-8 [May 23, Jul 4]

            rubriventris 5,6,7


            affinus 9,10,11,12 [Nov 29]

            aktis 5


            cinerea 4,5 [Apr 10]

            divisor 5,6 [May 5]

            flavicollis 3,4,5,6 [Mar 22, May 15]

            grossa 6,7

            index 4-6

            ithypyga 6

            lata 6,7

            macquarti 3-5,6,7 [Mar 25, May 15]

            unknown species

            saffrana 3-8

            sericea 5,6,8

            sicula 5,6,7

            thoracica 5,6,7

            vorax 5,6,7 [May 19, July 11]


            bromleyi 7,8

            ochreifrons 6,7



            atridorsalis 5,6,7,8 [May 25]



            brevicornis 6,7

            flavipes 6

            murina 6

            virgata 6,7,8


            antimachus 5,6,7

            erythocnemius 6,7

            maneei 10

            notatus 4-6

            prairiensis 7,9,10

            sadyates 5,8,9

            snowii 6,7, 8-10

            virginicus 5,6 [May 14, June 30]

Mallophora orcina 6-9 [Jun 24, Aug 9]

Megaphorus acrus 7,8

Microstylum morosum 7 [Jun 28, Aug 26]


            flavofemoratus 4,5,6,8 [April 24]

            orphne 4,5,6 [April 21]

Neomochtherus auricomus 8-11 [Aug 16, Nov 22]


            aestuans 5-9 [May 2, Oct 10]

            apicalis 6-8

            kansensis 5,6-8,9

Nicocles pictus 2,3,10,11 [Feb 19, Nov 7]


            gemma 6,7,8

            ouachitensis 6,7,8

            tibialis 6,7,8

            unknown species 7

Orthogonis stygia 6,7 [June 25, July 23]

Philonicus rufipennis 6-8

Pogonosoma dorsatum 5-7


            nemoralis 5,6,7,8

            plena 5-7

            pogonias 8-11 [Aug 31, Nov 1]

            prairiensis 6,7 [June 8]

            texana 5,6,7,9 [(May 22) Jul 18, (Sept 5) Sept 12]

Proctacanthella cacopiliga 7,9 [May 24, Oct 28]


            brevipennis 3-6 [April 28]

            duryi 6-8

            hinei 6,8

            longus 6,7,9 [Jun 5]

            milbertii 8,9,10,11


            rufus 5-7,8

Prolepsis tristus 6-9,10 [Jun 26, Oct 28]


            bastardii 4,5-7,8,11

            fitchii 6-8

            hinei 6,7-10 [Jun 4, Aug 28]


            birdi 5,6-9 [May 30, Jul 4]

            nudiusculus 8,9 [May 18, Aug 22]

Psilonyx annulatus 5,6,7,8


            abdominalis 9,10

            colei 5,7,8,9,10 [Sept 7]

            trifasciatus 5,6-9,10,11 [May 5, Nov 4 (Nov 5)]

Taracticus octopunctatus 6,7

Tipulogaster glabrata 5,6 [Jun 9]

Townsendia nigra 7,8

Triorla interrupta 5,6-9,10 [May 1, (Oct 12) Oct 19]

Zabrops flavipilis 7