Species 2o. C. anonymus Williston, 1896

Tendipes (Tendipes) anomymus - Townes 1945 as syn. C. decorus.

Adult:
         Partly after Sublette (1966 and 1967 - redesc. of co-types), Wülker et al. (1989) and an unpublished manuscript by D. Grimaldi:

Male:  Head and thorax with dark brown markings, scutellum pale; all femurs with a narrow apical dark fascia, bases of all tibiae also dark, broadest on foretibia.
- Abdominal tergites II-IV with saddle shaped marking, becoming a median spot on V-VI.
Wing length 2.73 (2.44-3.06) mm, VR 0.93-0.98; 13.3 (8-17) setae in squamal fringe; almost entirely pale, anterior wing vein slightly darker.
AR about 3.04 (2.84-3.37).  Frontal tubercles small, length about 24 (16-30) µm and 2.75 times longer than wide.  Palpal proportions (µm) 60 : 49 : 229 : 238 : 352; P5/P4 1.51-1.55; P5/P3 1.48-1.62.  Clypeus about 0.60-0.75 times the width of the antennal pedicel, 23 (18-26) setae.
Thorax with a small but distinct median tubercle.  Setae: acrostichal - 12-14 in double row; dorsolateral - 13-21; prealar - 5-6; scutellar - 14-34.
LRI about 1.77; LRII about 0.63; LRIII 0.74.

i.e. no beard on PI
 
Fe
Ti
Ta1
Ta2
Ta3
Ta4
Ta5
LR
F/T
BR
PI
1320
1050
1780
875
770
665
340
1.66-1.82
1.23-1.29
2.47-2.54
PII
1340
1155
745
395
290
195
130
0.61-0.68
1.14-1.18
 
PIII
1490
1425
1055
555
445
260
150
0.72-0.76
1.04-1.06
 

TIX with about 11 (9-13) setae in individual spots.

Anal point broad and downcurved; superior volsella curved dorsally, essentially D-type, perhaps between e and f of Strenzke (1959); inferior volsella with 20-27 simple setae.  Gonostylus relatively narrow, reducing significantly from mid point.

Female:
Antennal flagellomeres darkened; proportions (µm) 168 : 117 : 129 : 130 : 191 (Wülker et al. list only 4 segments); AR about 0.36; A5/A1 about 1-14-1.25.  Frontal tubercles 41 µm.
Palpal proportions (2-5) (µm): 61 : 280 : 286 : 474; P5/P4 1.66, P5/P3 1.69.  Clypeus with about 44 setae.
Antepronotum slightly broader than in male, mesonotal tubercle conspicuous.
Thoracic setae: acrostichal - 14 in double row; dorsocentral - 45 in up to three rows; prealar 5, supra-alar - 1; scutellar - 20-31.
Wing length 3.64 mm, VR 1.11 (0.89); squamal fringe of 19 setae.
LRI about 1.89; LRII about 0.56; LRIII about 0.70.

 
Fe
Ti
Ta1
Ta2
Ta3
Ta4
Ta5
LR
F/T
Ta4/Ti
PI
1465
1085
1995
1005
890
850
350
1.82-1.89
1.35
0.75
PII
1445
1255
775
410
290
195
155
0.67-0.87
1.15
 
PIII
1590
1485
1120
625
465
260
145
0.75
1.07
 

About 4 setae on GcIX; 6 setae on segment X which is long and narrow, about 2.2 times longer than greatest width.  Cercus small, essentially quadrate, ventral posterior margin rounded and slightly swollen.

Immatures and cytology

Found: California - Stanford, Santa Clara Co.; Near Palo Alto, Riverside (incl. 'Midgeville', UCR Campus), 3.5 mls. Palm Desert, & Corona, Riverside Co.; Arlington.
            Mississippi - Jackson, Hinds Co.(30.50°N; 90.33°W)
            Texas - Brackenridge Exptl. Stn., Austin, Travis Co.(30.27°N, 97.73°W); Fish hatchery Galveston, Galveston Co. Called C. karensisby Laufer et al. (1982)

              Also found in West Indies - St. Vincent Island (Type locality).

Sp. 51 of Frommer.  Egg mass described (as C. sp. 1) by Morrow, Bath & Anderson (1968) and larva by Bath and Anderson (1969).  Morphology and cytology described by Wülker, Sublette, Morath & Martin (1989b), some details of arms A, E and F given by Wülker & Morath (1989) and a photograph of arm G showing the location of the ssp160 gene (BR4) in Phillips et al. (1999).
Biever (1965, 1971) successfully bred this species in the laboratory (under the name C. sp. 51), as did Grimaldi in an unpublished manuscript.
The species seems to show differences in size between areas, but this may depend on whether they were wild collected or reared in the laboratory.
Noted as closely related to C. decorus among North American species, but males can be distinguished by the abdominal markings and the broad anal point.  However, most closely related to C. columbiensis (see below).

[ See also C. calligraphus, C. columbiensis or C. species WOC. ]

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Modified: 20 June 2026
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