The Crane Flies of California - Essig Museum of Entomology ...

12 Bulletin of the California Insect Survey
Geographic range.--California, Oregon, Washington.
California records.-DEL NORTE CO.: 26.5 mi. NE of Crescent
City, VI-22-59 (G. W. Byers, UK). State Line Creek,
border California-Oregon on Highway 199, VIII-9-48 (C. P.
Alexander and K. M. Fender, CPA). HUMBOLDT CO.: Orick,
VI-21-35 (A. L. Melander, CPA). Prairie Creek State Park,
VIII-10-48 (C. P. Alexander and K. M. Fender, CPA).
SHASTA CO.: Castle Crags State Park, 2100 feet, VIII-13-48,
VII-27-50 (C. P. Alexander, CPA). Hatchet Pass, near
Burney, 4100 feet, VII-25-59 (C. P. Alexander, CPA).
SISKIYOU CO.: Mount Shasta City, VI-18-59 (G. W. Byers,
UK).
Ptychoptera townesi Alexander
(Fig. 30; Map 5)
Ptychoptera townesi Alexander, 1943, Brooklyn Ent. SOC. Bul.
38~37-38.
Holotype 8; Elbe, Washington (CPA).
Geographic range.-California, Oregon, Washington.
California -~s.-SAN MATBO CO.: Portola State Park,
V-7-50 (P. H. Arnaud and H. B. k h , CAS). SANTA CRUZ
CO.: 2 mi. N of Scott's Valley on Glenwood Road along Bean
Creek, V-8-64 (T. L. Erwin, CPA). SONOMA Co.: 4 mi. W
of Plantation, V-1-58 (D. Burdick, CIS). TEHAhlIA (3.: near
Lassen Volcanic National Park, VI-15-59 (G. W. Byers, UK).
FAMILY TRICHOCERIDAE
Alexander, C. P., in Stone, Sabrosky, Wirth, Foote, and Coulson,
1965, A Catalog of Diptera of America North of
Mexico, pp. 15, 16.
The family includes the so-called winter crane flies
with most species being adult during the colder
months. All three of the Nearctic genera occur in the
state. All regional species are fully winged, the only
known subapterous genus and species being the
Japanese Kawasemyia imanishii (Tokunaga) where
the female sex is nearly wingless.
3 Abdomen annulated, the segments obscure yellow,
their posterior borders brown ... annulata Meigen
Abdominal segments uniformly brown ..... 4
4 Wings with a faintly darkened cloud over the r-rn
crossvein ............... 5
Wings unpatterned, except for the stigma when
indicated .............. 6
Male hypopygium (fig. 39) with dististyle complex,
5
bearing lobes on outer half; gonapophyses appearing
as powerful blades ..... colei Alexander
Male hypopygium (fig. 41) with dististyle relatively
simple, with a conspicuous flattened blade on mesal
face near base ...... garretti Alexander
6 Male hypopygium (fig. 42) with dististyle bearing
a small glabrous blade or setiferous tubercle on
mesal face near base ......... 7
Male hypopygium (figs. 40, 43) unarmed .... 8
7 Male hypopygium (fig. 42) with dististyle relatively
short, subequal to or shorter than the basistyle,
with a small setiferous tubercle . pellens Alexander
Male hypopygium with dististyle elongate, exceeding
the basistyle, near base with a small glabrous flattened
blade (Washington Report, p. 275, fig. 3)
hydoptera Alexander
KEY TO THE GENERA AND SPECIES
OF TRICHOCERIDAE
1 Tarsi with first segment (basitarsus) very short,
about oneeighth as long as the second; wings (fig.
35) with m-cu on vein M4 some distance beyond
origin; basal section of vein Ma oblique in position
PARACLADURA Brunetti
trichptera (Osten Sacken)
Tarsi with first segment longer than the second;
wings (figs. 34, 36) with m-cu close to the fork
of M 3t4; basal section of vein M 8 transverse or
suboblique .............. 2
2 Wings (fig 34) with vein 2nd A subsiinwus, not
curved evenly into the margin; eyes glabrous;
tibial spurs lacking; ovipositor (fig. 44) with cerci
short-oval, fleshy ..... DIAZOSMA Bergroth
subsinuatum Alexander
Wings (fig. 36) with vein 2nd A short, curved gently
to margin; eyes with setae between the ommatidia;
tibial spurs present; ovipositor (fig. 46) with cerci
elongate, sclerotized, the curvature downward . .
TRICHOCERA Meigen 3
Map 6. Locality records in California for Diarosma subsinuaturn
(Alexander) (squares) and Paracladma trihptera (Osten
Sacken) (circles).
8 Male hypopygium (fig. 43) with the phallosorne a
depressed-flattened central plate, the outer lateral
angles produced into short hornlike gonapophyses;
trichia of wing veins long and conspicuous ...
setosivena Alexander
Male hypopygium (fig. 40) with gonapophyses divergent,
long and slender, united only at their bases;