Ischnopsidea coloradensis
Revision of Nearctic Heterischnus Wesmael, 1859 (Hymenoptera, Ichneumonidae, Ichneumoninae, Phaeogenini)
Claridge, Brandon
Journal of Hymenoptera Research
2021
2021-08-31
85
57
79
3L7LP
3B8007E9-3E33-5E32-A230-55EA28C01352
(Cushman)
Cushman
1920
Insecta
Ichneumonidae
Heterischnus
CoL
Animalia
Heterischnus coloradensis
Hymenoptera
0
57
Arthropoda
species
coloradensis
Figs 4 , 5 , 6
Ischnopsidea coloradensisCushman, 1920: 253. Holotype: ♀ [USNM]. Not examined.
Diagnosis. Heterischnus coloradensis(Cushman) is chromatically and morphologically similar to H. huardibut can be distinguished from the latter and other Nearctic species by a combination of the following: 1) male clypeus dark reddish-brown to black; 2) flagellomeres 10/11-12/13 dorsally white in female; 3) supra-antennal area rugulose-punctate; and 4) first lateral area of propodeum rugulose-punctate.
Description. Female(Fig. 4). Body length: 6.8-8.7 mm. Fore wing length: 4.2-5.1 mm. Figure 4. Heterischnus coloradensis(Cushman) female Ahabitus Bmesosoma, lateral view Chead, frontal view Dhead, dorsal view Epropodeum, dorsolateral view. Scale bars: 5.0 mm ( A); 1.0 mm ( B-E). Color.Head black. Mandible yellowish-white with brown apex. Antenna dark brown with flagellomeres 10/11-12/13 dorsally white. Mesosoma black with following areas white: occasionally anterior margin of pronotum (25% of specimens), posterior 0.2 of dorsal margin of pronotum, usually subalar prominence (60% of specimens), and tegula. Fore and middle legs light brownish-red except for tarsomere 5 brown. Hind leg brownish-red except for basal 0.1 of tibia white, apical 0.2 of tibia brown, tarsomeres brown. Metasoma black to dark brown. Wing membrane clear; basal 0.1-0.2 of wing with veins white, remaining sections brown. Head.Clypeus smooth, basally with fine punctures separated by 0.5-1.0 xtheir diameter becoming less dense apically; ventral margin with sublateral apical projections subobsolete to obsolete. Malar space 1.5-2.0 xbasal mandibular width. Supraclypeal area rugulose-punctate. Gena smooth, coarsely punctate with punctures separated by 0.2-1.5 xtheir diameter. Supra-antennal area rugulose-punctate. Vertex smooth, finely punctate with punctures separated by 0.5-2.0 xtheir diameter. Antenna with 32-34 flagellomeres. Mesosoma.Mesonotum smooth, with punctures separated by 0.5-2.0 xtheir diameter. Scutellum smooth, finely punctate with punctures separated by 1.0-2.0 xtheir diameter. Mesopleuron densely, coarsely punctate with punctures confluent to separated by about 0.5 xtheir diameter becoming more sparse dorsally; tendency in some specimens to form lateral rugulae. Speculum coarsely punctate dorsally, smooth ventrally. Ventral division of metapleuron rugulose-punctate. Dorsal division of metapleuron with a few scattered punctures. Propodeum overall rugulose-punctate with areola and posterodorsal face rugulose; carination complete. Tarsal claws simple. Metasoma.Postpetiole rugulose-punctate. T2 length 1.0-1.2 xposterior width. T2-7 granulate with dense, shallow punctures; punctation becoming sparser and indistinct posteriorly. Gastrocoelus rugulose-granulate. Thyridium distant from T2 anterior margin by 0.5-2.0 xthyridial length. Male(Fig. 5). Body length 6.8-9.1 mm. Fore wing length: 4.3-5.6 mm. As in female except for: yellowish-white markings on mesosoma more extensive. Figure 5. Heterischnus coloradensis(Cushman) male Ahabitus Bhead, frontal view. Scale bars: 5.0 mm ( A); 1.0 mm ( B).
Material examined. Paratype: USA• 1♀; Colorado, Larimer Co., Forrester's; 19.vii.1895; C. F. & N. E. Baker; USNM paratype22850. Non-type material: USA• 1♀; California, Modoc Co. 1 mileN of Stough Reservoir; [ 41.5767, -120.2538], 15.vi.1963; UCDC• 1♀; California, Modoc Co., Cedar Pass; [ 41.5623, -120.2688]; 29.vi.1955; D. L. Dahlsten; UCDC• 1♀; California, Nevada Co., Sagehen Cr.near Hobart Mills; [ 39.4342, -120.2048]; 15.vii.1964; M. E. Irwin; UCRCENT529785• 1♀; Colorado, Grand Co., Phantom Valley, Rocky Mountain National Park; 9400 ft; [ 40.2833, -105.8505]; 16.vi.1948; H., M., G.,D. & J. Townes; EMUSENT00000417• 1♀, 3♂♂; Colorado, Routt Co., Steamboat Springs; [ 40.4857, -106.8309]; 6.viii.1948; H., M., G.,D. & J. Townes; EMUSENT00000722, EMUSENT00000132, EMUSENT00000207, EMUSENT00000073• 1♂; same collection data as preceding; 5.viii.1948; EMUSENT00000345• 1♂; Idaho, Oneida Co., 3 mi.S of Roy Summit; [ 42.2635, -112.7653]; 6.vii.1972; G. F. Knowlton; EMUSENT00000137• 1♂; Idaho, Blaine Co., 9 mi.SW Bellevue; [ 43.3353, -114.2901]; 28.viii.1965; J. S. Buckett; UCDC• 1♀; Idaho, Boise Co., Idaho City; [ 43.82813, -115.8341]; 9.vi.1978; H. & M. Townes; EMUSENT00000777• 3♀♀; same collection data as preceding; 13.vi.1978; EMUSENT00000258, EMUSENT00000317, EMUSENT00000225• 1♀♀; same collection data as preceding; 14.vi.1978; EMUSENT00000192• 2♂♂; Idaho, Custer Co., nr. Stanley; [ 44.2161, -114.9353]; 2.viii.1978; H. & M. Townes; EMUSENT00000253, EMUSENT00000206• 1♂; same collection data as preceding; 7.viii.1978; EMUSENT00000288• 2♂♂; same collection data a preceding; 8.viii.1978; EMUSENT00000719, EMUSENT00000297• 1♀; Idaho, Oneida Co., Rock Creek; [ 42.4320, -114.3054]; 17.vii.1972; G. F. Knowlton; EMUSENT00000138• 1♂; same collection data as preceding; 6.vii.1972; EMUSENT00000224• 1♂; Montana, Madison Co., 16 milesS. of Cameron; [ 45.0604, -111.6656]; 18.vii.1971; UCDC• 3♀♀; Montana, Gallatin Co., Bozeman; [ 45.6771, -111.0428]; 30.vi.1978; R., B. & C. Dasch; EMUSENT00000629, EMUSENT00000056, EMUSENT00000194• 4♀♀; same collection data as preceding; 7.vii.1978; EMUSENT00000193, EMUSENT00000077, EMUSENT00000566, EMUSENT00000357• 1♂; Nevada, Elko Co., Elko; [ 40.8385, -115.7628]; 21.viii.1964; F. S. Buckett; UCDC• 1♀; Nevada, Elko Co., Tuscarora; [ 41.3146 -116.2233]; 5.vi.1978; H. & M. Townes; EMUSENT00000393• 1♀; Nevada, Storey Co., Virginia City; [ 39.3093, -119.6499]; 14.vi.1951; W. J. Wall; UCDC• 1♀; Oregon, Union Co., Mt. Emily; [ 45.4379, -118.0913]; 03-11.vi.1987; T. R. Torgersen, EMUSENT00000420• 1♀; Utah, Box Elder Co.Willard Peak.; 9000 ft; [ 41.4210, -112.0561]; 25.vii.1960; G. E. Bohart; EMUSENT00000347• 2♀♀; Utah, Cache Co., Black Smith Fork Canyon; [ 41.6278, -111.8040]; 1-6.vii.1964; W. J. Hanson; EMUSENT00000391, EMUSENT00000108• 1♀; Utah, Cache Co., North Logan; [ 41.7706, -111.8045]; 25-31.v.1983; C. R. Nelson; EMUSENT00000030• 1♂; Utah, Cache Co., Tony Grove; 2290 m; 41.8884, -111.6571; 18.v.-1.vi.2019; B. Claridge; Malaise trap; EMUSENT00000547• 1♀; Utah, Cache Co., Tony Grove Canyon; [ 41.8902, -111.6371]; 25.viii.-2.ix.1976; W. J. Hanson; EMUSENT00000026• 1♂; Wyoming, Albany Co., Pole Mountain; 41.22, -105.45; 13-20.vii.2013; Malaise trap, ungrazed short grass prairie; L. Haimowitz, H, Aguirre; EMUSENT00004739.
Distribution and biology. Collecting dates span mid-May to early September, although the greatest number of records are from July and August. Heterischnus coloradensisoccurs from the Rocky Mountains west to the eastern slopes of the Sierra Nevada Range (Fig. 6). Throughout its range, H. coloradensisis sympatric with H. huardi. No host information is known. Figure 6.Distribution of Heterischnus coloradensis(Cushman).
Comments. In addition to the examined paratype, a specimen that was compared with the holotype by Henry Townes was examined.
1895-07-19
Forrester's, C. F. & N. E. Baker
USA
Larimer Co.
Larimer Co.
1
1
Colorado
Paratype
1963-06-15
USA
Modoc Co.
41.5767
1 mile N of Stough Reservoir
6
-120.2538
1
1
California
1955-06-29
D. L. Dahlsten
United States of America
Modoc Co.
41.5623
Cedar Pass
6
-120.2688
1
1
California
1964-07-15
M. E. Irwin
United States of America
Co.
39.4342
Hobart Mills
6
-120.2048
Sagehen Cr.
1
1
California
1948-06-16
H., M., G., D. & J. Townes
United States of America
Grand Co.
2865
40.2833
Rocky Mountain National Park
6
-105.8505
Phantom Valley
1
1
Colorado
1948-08-06
H., M., G., D. & J. Townes
United States of America
Routt Co.
40.4857
Steamboat Springs
6
-106.8309
4
1
3
Colorado
1948-08-05
H., M., G., D. & J. Townes
United States of America
Routt Co.
40.4857
Steamboat Springs
6
-106.8309
1
1
Colorado
1972-07-06
G. F. Knowlton
United States of America
Oneida Co.
42.2635
3 mi. S of Roy Summit
6
-112.7653
1
1
Idaho
1965-08-28
J. S. Buckett
United States of America
Blaine Co.
43.3353
9 mi. SW Bellevue
6
-114.2901
1
1
Idaho
1978-06-09
H. & M. Townes
United States of America
Boise Co.
43.82813
City
4
-115.8341
1
1
Idaho
1978-06-13
H. & M. Townes
United States of America
Boise Co.
43.82813
City
4
-115.8341
3
3
Idaho
1978-06-14
H. & M. Townes
United States of America
Boise Co.
43.82813
City
4
-115.8341
1
1
Idaho
1978-08-02
H. & M. Townes
United States of America
Custer Co.
44.2161
Stanley
6
-114.9353
2
2
Idaho
1978-08-07
H. & M. Townes
United States of America
Custer Co.
44.2161
Stanley
6
-114.9353
1
1
Idaho
1978-08-08
H. & M. Townes
United States of America
Custer Co.
44.2161
Stanley
6
-114.9353
2
2
Idaho
1972-07-17
G. F. Knowlton
United States of America
Oneida Co.
42.432
Rock Creek
6
-114.3054
1
1
Idaho
1972-07-06
G. F. Knowlton
United States of America
Oneida Co.
42.432
Rock Creek
6
-114.3054
1
1
Idaho
1971-07-18
United States of America
Madison Co.
45.0604
Cameron
6
-111.6656
1
1
Montana
1978-06-30
R., B. & C. Dasch
United States of America
Gallatin Co.
45.6771
Bozeman
6
-111.0428
3
3
Montana
1978-07-07
R., B. & C. Dasch
United States of America
Gallatin Co.
45.6771
Bozeman
6
-111.0428
4
4
Montana
1964-08-21
F. S. Buckett
United States of America
Elko Co.
40.8385
Elko
6
-115.7628
1
1
Nevada
1978-06-05
H. & M. Townes
United States of America
Elko Co.
41.3146
Tuscarora
6
-116.2233
1
1
Nevada
1951-06-14
W. J. Wall
United States of America
Storey Co.
39.3093
City
6
-119.6499
1
1
Nevada
1987-06-03
1987-06-11
1987-06-03
T. R. Torgersen
United States of America
Union Co.
45.4379
Mt. Emily
6
-118.0913
1
1
Oregon
1960-07-25
G. E. Bohart
United States of America
Box Elder Co.
2743
41.421
Box Elder Co.
6
-112.0561
1
1
Utah
1964-07-01
1964-07-06
1964-07-01
W. J. Hanson
United States of America
Cache Co.
41.6278
Black Smith Fork Canyon
6
-111.804
2
2
Utah
1983-05-25
1983-05-31
1983-05-25
C. R. Nelson
United States of America
Cache Co.
41.7706
North Logan
6
-111.8045
1
1
Utah
2019-05-18
2019-06-01
2019-05-18
Malaise trap
B. Claridge
United States of America
Cache Co.
2290
41.8884
Tony Grove
6
-111.6571
1
1
Utah
1976-08-25
1976-09-02
1976-08-25
W. J. Hanson
United States of America
Cache Co.
41.8902
Tony Grove Canyon
6
-111.6371
1
1
Utah
2013-07-13
2013-07-20
2013-07-13
Malaise trap
L. Haimowitz, Aguirre
United States of America
Albany Co.
Pole Mountain
1
1
Wyoming