Lachesillidae Ectopsocidae Peripsocidae Trichopsocidae Archipsocidae Pseudocaeciliidae
Lachesilla michiliensis Garcia Aldrete 1991
Size: ~ 1.5 mm Range: Outside Texas Mexico: Durango
State Habitat: under loose bark Known only from female. "This species is neotenic as indicated by the brachyptery, small oceli and almost complete absence of sensory fields on the paraprocts" Garcia Aldrete, A., "Lachesillidae from the Biosphere Reserve 'La Michilia", Durango and Surrounding Areas, Folia Entomologica Mexicana 81: 165-183, 1991.
photograph by Graham Montgomery
Lachesilla forcepeta Chapman 1930
Size: ~ 2.0 mm Range: Outside of Texas- throughout eastern U.S. west to Oklahoma and Kansas and the San Antonio area of Texas. Habitat:
conifers including Juniperus ashei
Lachesilla tectorum Badonnel 1931
Size: 2.5 mm Range: outside Texas- Gulf coast Florida to Texas Mexico:
Tamaulipas and Nuevo Leon Habitat: dead leaves of palm
and tall grasses Known from female only.
Lachesilla nita Sommerman 1946
Size: 2.5 mm. Range: Gulf Coast Georgia to Texas, also in Mexico,
Beliize, Guatemala, and Panama. Habitat: Found on cabbage palm, various oaks, Eleagnus and other shrubs. Note the characteristic diffuse spot in each cell from R3, R5, M1, M2, M3.
Lachesilla sulcata Garcia Aldrete 1986
Size: ~ 2.0 mm Range: Outside Texas- Gulf states from Texas to
Florida. Mexico: Nuevo Leon, Tamaulipas, Chiapas. Habitat: native
grass.The male of this species was only recently been described
(Garcia Aldrete & Mockford "Reappraisal of Species Group Patzunensis" Proc. Ent. Soc. Washington 113(4): 417-425, 2011.
Ectopsocus meridionalis Ribaga 1904
Size:2.4 mm Range outsie Texas: throughout eastern U.S. south to Florida; central Mexico to Chile, southern Europe, Africa and Japan. Habitat: persistent dead leaves. Known only from female.
In this species, the males are micropterous and the females are either macropterous or micropterous. The tiny male has a dark clunial comb (visible in a dissecting microscope) which identifies it as mature. I once observed a male approaching a female and vibrating his body rhythmically as a prelude to courtship. This species is likely very common throughout Texas.
The barchypterous form of this species is shown to the right. I do not find this form in central Texas but did record them from Austin Co.
Peripsocus subfasciatus (Rambur) 1842
Size: ~ 2.7 Range: Outside Texas - eastern U.S., west to Minnesota and Arkansas, Pacific Coast from San Francisco Bay to British Columbia. Habitat: branches of broadleaf and coniferous trees and
shaded stone outcrops. Male virtually absent except in Washington state and Vancouver, British Columbia.
Peripsocus minimus Mockford 1971
Size: ~ 2.0 mm Range: Outside Texas- southern Illinois
southwestward to Missoiri, Arkansas and central Texas Habitat:
foliage of Juniperus virginiana
and Juniperus ashei
Size: male: ~ 2.2 mm, female ~ 1.5 mm Range: Habitat: Lichen
covered branches of Quercus
and Texas persimmon (Diospyros texana
). This is an un-described species in which the female is micropterous.
Trichopsocus dalii (McLachlan) 1867
Size: ~ 2.8 mm Range: outside Texas- this introduced species is found
in states on the Gulf and Atlantic coast of the U.S. and in the Atlantic and Mediteranean coast of Europe and North Africa Habitat: branches of braod leaf trees like citrus, bay, Ligustrum
Archipsocus specimens are found along the Gulf coast from Florida to Texas and in Mexico. They can occur in Texas as far inland as Travis Co. I have not yet identified this species. These specimens were found at Palmetto State Park. There are three described species which
might occur on the Texas coast: Archipsocus floridanus
, A. gurneyi A. nomas
. The webbing from these psocids often covers entire tree trunks and causes a media sensation.
Pseudocaecilius citricola (Ashmead) 1879
Size: 2.8 mm Range: Outside Texas, occurs throughout Florida, on the Alabama coast, pan-tropical; is even recorded on the Galapagos Islands; Habitat: living leaves of citrus, evergreen oaks, palms
and other trees. Known from female only.
Blaste longipennis (Banks) 1918
Size: ~ 5 mm. Range outside Texas: Yellowstone Natonal Park south to
Chiricahua Mountainsof Arizona. Habitat: Collected on dwarf mistletoe, Arceuthobuim vaginatum
Cerastipsocus venosus (Burmeister) 1839
Size: male ~ 6 mm female 8mm Range outside Texas - Maine south to southern Florida; south to Mexico. Habitat: Trunks and brances of broad leaf trees and conifers. Pterostigma of males is dark while those of females are white.
Images by Robert Zimlich.
Cerastipsocus trifasciatus (Provancher) 1876
Size: ~ 6 mm. Range outside Texas: Southestern U.S. continuing through Arkansas to Arizona. Also in Mexico, Guatemala, Costa Rica and Columbia. Habitat: Tree trunks and branches and rock outcrops.
Image by William Geoghegan.
Metylophorus novaescotiae (Walker) 1853
Size: 6-7 mm Range outside Texas: Nova Scotia and coastal Maine to Florida, west to Minnesota. Habitat: Branches of broad-leaf trees and shrubs. Also occurs in Mexico.
Images by Tom Murray.
Hyalopsocus striatus (Walker) 1853
Size: 5.3 Range outside Texas: Throughout northeastern U.S. and southeast Canada. Occurs spottily in western states. Habitat: Juniperous ashei
This species is characterized by the extensive pigment in cells Cu2
and IA in the forewing.
Indiopsocus lacteus Mockford & Young 2015
Size: ~ 3.9 Range: endemic to Texas Hill Country. Habitat: lower
bare limbs of living Juniperus ashei
. Recently described in Trans. Am. Entomol. Soc. 141:233-251.
Indiopsocus palmatus Mockford & Young 2015
Size: ~ 3.8 Range : Apparently a Texas endemic. Habitat: braodleaf trees like Quercus virginiana, Celtis reticulata Ulmus crassifolia and Acacia farnesiana.
Recently described in Trans. Am. Entomol. Soc. 141:233-251.