Crassomicrodus pallens (Cresson, 1873)

Figueroa, Jose Isaac, Sharkey, Michael Joseph, Napoles, Jesus Romero, Garcia, Jose Antonio Sanchez, Martinez, Ana Mabel, Lopez-Martinez, Victor & Pineda, Samuel, 2011, Revision of the new world genus Crassomicrodus Ashmead (Hymenoptera, Braconidae, Agathidinae), with an identification key to species, ZooKeys 142, pp. 27-75 : 60-62

Crassomicrodus pallens (Cresson, 1873) Fig. 14 a–e

Crassomicrodus pallens (Cresson): Muesebeck 1927: 20.

Microdus pallens Cresson 1873: 53.

Holotype female.

Illinois [USA]. Cat. No. 2746 (ANSP).

Description female.

Body. Length. 4.20-6.48 mm. Color (Fig. 14e). Integument yellowish-orange except ocelli translucent yellow; eyes black or silver; mandible apex and apical area of hind tibia and tarsomeres blackish. Sometimes propleuron black with metapleuron and propodeum blackish, rarely head and mesopleuron blackish. Wing veins dark brown; forewing infumate with a hyaline spot on the first submarginal cell that is similar in size to the parastigma. Head (Fig. 14ab). Triangular in frontal view; face without longitudinal ridge dorsomedially; eye height/width = 1.36; eye height 0.55 –0.58× inter-ocular distance; area between antennal sockets with a median pyramidal-shaped elevation and two weakly defined tubercles; frons excavated with a pair of microfoveolate groove that diverge towards the ocellar area; posterior surface of antennal sockets smooth, rarely rugulose; groove between lateral ocelli smooth; median ocellus separated from lateral ocellus by smooth groove; gena not bulging; malar space 0.77 –0.86× as long as eye height; clypeus 1.63 –2.00× wider than high; length of ventrolateral margin of clypeus similar to diameter of tentorial pit; antenna with 29-34 flagellomeres; setae at base of mandible distinctly longer than setae on rest of body surface. Mesosoma (Fig. 14cde). Pronotum strigulose or reticulate rugulose; lateral pronotal margins with weakly crenulate groove; notauli impressed; anterolateral edges of scutellum lacking small acute projection; scutellar disc convex with sparse setae from 0.09 to 0.11 mm in length; scutellar disc sloped posteriorly and rounded; lateral scutellar depression smooth, rarely with punctures on the ventral margins; carinae of central metanotal area almost triangular shaped; propodeum reticulate rugulose; subalar lobe separated from mesopleuron by narrow rugulose groove, width distinctly shorter than the subalar lobe; metapleuron reticulate-rugulose. Legs. Inner spur of middle tibia 0.74 –0.81× length of basitarsus; inner spur of hind tibia 0.61 –0.72× length of basitarsus; metabasitarsus 1.02 –1.12× length of tarsomeres III, IV, and V combined; hind tibia 2.22 –2.39× longer than basitarsus; hind femur length 3.44 –3.85× its maximum width. Wings. Forewing length/width = 2.46-2.55; stigma 3.00 –3.44× longer than maximum width; forewing vein R1 0.47 –0.57× as long as vein RS; vein RS not sinuate; vein r arising slightly before middle of stigma; second submarginal cell triangular, with petiole 0.05-0.09 mm long; vein M+CU distinctly pigmented throughout; hind wing length/width = 3.10-3.39; hind wing vein 1M 1.41 –1.53× longer than 1r-m; hind wing with 4-5 hamuli. Metasoma. Apical width of petiole (tergum 1) 3.60 –3.92× wider than basal width; minimum width of petiole 0.58 –0.63× apical width; length of ovipositor sheath 0.20-0.33 mm.

Male.

Similar to female.

Host.

Unknown.

Distribution.

Mexico and USA.

Diagnosis.

Distinguished from other Crassomicrodus species by the following combination of characters: area between antennal sockets with a median pyramidal-shaped elevation, head triangular in frontal view, malar space 0.77 –0.86× as long as eye height, body length 4.20-6.48 mm, forewing vein R1 0.47 –0.57× as long as vein RS, body usually yellowish-orange.

Remarks.

Crassomicrodus pallens resembles Crassomicrodus divisus in the shape of the head, but differs by the characters in the key. A few specimens of this species have the malar space shorter than eye height (0.77 times), specimens with this variation also have R1 less than 0.57 times as long as vein RS.

Material examined.

Type: 1 ♀: Ill. (ANSP). Homotype: 1 ♀, USA, South Carolina: Hilton Head Island, 17/VII/1965, Howden H. & A. Howden (CNC).

Other specimens examined .- MEXICO, Colima: 21 miles N Manzanillo, 1 ♀ 25/VIII/1970, Wasbauer M.S. & J.S. Wasbauer (CNC). Nayarit: Arroyo Santiago, Nr. Jesus Maria, 2 ♀ 5/VII/1955 (CNC, EMEC). Sinaloa: 2.5 miles N Mazatlán, 1 ♀12/VIII/1970, Wasbauer M., malaise trap (CNC); 35 miles S Es cuinapa, 1 ♂ 24/IV/1961, Howden & Martin (HIC). Sonora: Alamos, 2 ♀, 1 ♂ 5/IX/1970, Bohart R.M (UCDC); La aduana W Alamos, 1 ♀ 18/VIII/1964, Irwin M.E. (USNM); 5 miles E Navojoa, 1 ♀ 9/IX/1970, Bohart R.M. (UCDC). Veracruz: Minatitlán, 1 ♀ 1/II/1992, Osborn H. (USNM). USA,Alabama: Alabama, 2 ♀ 1980; Auburn, Lee Co., 1 ♀ 9/VI/1917; Tuskegee, 1 ♂ 22/VII/1930, Beamer R.H. (USNM). Arkansas: Washington Co. 1 ♀ 11/X/1955, Baker T.A. at light (USNM); Shoal Bay Rec. Area, 1 ♂20/V/1981, Dasch B. & C. Dasch (AEIC). Connecticut: East Hartford, 1 ♀ 13/VI/1947, Evans Howard E.; Riverbank, East Hartford, 1 ♀ 20/IX/1946, Evans Howard E. (CNC). Florida: 1 ♂(CNC). Tarpon Sprs., 1 ♂20/III/1950, Townes H.K.; Cedar Key, 1 ♂ 28/III/1985, Townes H. & M. Townes; Elfes, 1 ♀ 4/IV/1937, Franclemont J.G.; 5 miles NE Bronson, Levy Co., 1 ♂ 29/III/1986, LaSalle John (AEIC); De Funiak Springs, 1 ♂ 17-19/X/1914; Crestview, 1 ♂15-16/X/1914 (AMNH); Pine Hill Estates, Gainesville, 1 ♂4/X/1973, Weems H.V. Jr., malaise trap (CNC); Archbold Biol. Sta., Highlands Co., 1 ♀ 28VII10VIII/1987, Wahl D.B. (HIC); Fleming Key, Monroe Co., 2 ♀14/VIII/1979, Acree John A. & H.V. Weems Jr. insect flight trap; 1 miles W Interlachen, Putnam, 1 ♀, 5 ♂ 16/IV/1984, Stange L.A.; 2 miles N Holt, Okaloosa Co., 1 ♂28/X/1983, Stange L.A; Gainesville, Alachua Co., 1 ♂1/VIII/1977, 1 ♀ 31/VII/1977, Davis L.R. Jr.; Interlachen, Putnam Co., 2 ♂4/V/1986, Stange L.A.; Monteoca, Alachua Co., 1 ♀ 26/IX/1977, 1 ♀ 3/X/1977, Butler F. Jerry; Nokomis, Sarasota Co., 1 ♂9/I/1967; Palmdale, Glades County, 1 ♂25/VI/1972, Pierce W.H.; Pine Hill Estates, Gainesville, 1 ♀ 2/X/1973, 1 ♀ 20/IX/1973, 1 ♀ 29/IX/1973, 1 ♀ 30/IX/1973, Weems H.V. Jr., malaise trap; San Felasco Hammock, Alachua Co., 1 ♀ 17/III/1977, Fairchild G.B. & Weems H.V. Jr.; Suwanne Riv. St. Pk., Suwannee Co., 1 ♀ 13-25/IV/1977, Wiley J.R. (FSCA); San Felasco Hammock, Alachua Co., 1 ♀ 9-14/III/1977, Fairchild G.B. (UCDC); Arcadia, 1 ♂ 2/VII/1962, 1 ♂ 3/VII/1962, Krombein Karl V.; Alachua Co., 1 ♂4/VII/1955, Weems H.V.; Gainesville, 1 ♀ 28/VIII/1960, Stange L.A. (USNM). Georgia: 2 ♀ (USNM); Pine Mtn. Rabun Co., 1 ♂1/VIII/1957, 457 m., Chillcott J.G. (CNC); 10 miles N Waycross, Ware Co., 1 ♂ 27/VIII/1960, Marsh P.M.; Lakeland, 1 ♂ 18/IV/1940, Fattig P.W. (USNM). Illinois: 1 ♂ VIII (USNM); Havana, 1 ♂18/VIII/1912, Devil’s Hole; Meredosia, 1 ♂22/VIII/1917; St. Anne, 1 ♂22/VII/1935, Ross & DeLong (INHS); Carbondale, Jackson Co., 1 ♀ 28/IX/1956, Downey J.C. (USNM). Indiana: Forest Nursery, Jackson Co. 1 ♂ 23/IX/1938, Schnell R.L. (USNM). Iowa: Sioux City, 1 ♂ 15/VII/1927, Ainslie C.N. (USNM). Kansas: Lawrence, 1 ♀ 12/VI/1960, Menke A.S. (UCDC); 1 ♂ Baldwin, V, Bridwell J.C.; Lawrence vicinity, Douglas Co., 1 ♂ 29/VI/1962, Roberts R. (USNM). Maryland: Beltsville, 1 ♂ 23/V, Krombein K.V.; College Park, 1 ♂ 17/VIII/1914 (USNM); Crownsville, 1 ♀ 14/VII/1956, Krombein Karl V. (HIC). Massachusetts 2 ♂ (USNM); Truro 1 ♀, 1 ♂ 4/IX/1904, Morse A.P. (MCZ); Cabo Cod, 1 ♀ 6/IX/1939, Dreisbach R.R. (MSUC); Nantucket, 1 ♂ 7/IX/1909; Nantucket, 1 ♂ 8/IX/1926, Johnson C.W. (USNM). Michigan: Newago Co., 1 ♂ 13 /VI/1940, Dreisbach R.R. (AEIC); Newago Co., 2 ♂ 30/VII/1944, Dreisbach R.R. (MSUC, USNM). Minnesota: Ft. Snelling, 1 ♀ 2/VIII/1923, Hertig A.T.; Ft. Snelling, 2 ♀ 28/VII/1922, Nichol A.A.; John Latsch St. Pk., S Minneiska, 1 ♀ 1/V/1951; Jordan, 1 ♀ 15/IX/1930, Talford H.S.; Jordan, sand area, 1 ♀ 13/VII/1923, Hertig A.T. (UMSP). Missouri: Columbia, 1 ♂ 29/IX/1964, Bayer L.G. (AEIC); Williamsville, 1 ♀ 1-16/VI/1969, Becker J.T., malaise trap (CNC); Columbia, 1 ♀ 20/VII/1967, Parker F.D. (UCDC); Taney Co., 1 ♀, 1 ♂13/IX/1944, Portman R.W. (UMRM); Columbia, 1 ♀ 22/VIII/1967, Parker F.D., malaise trap; Columbia, 1 ♀ 26/X/1931, Craig W.S. (USNM). Nebraska: Valentine Refuge, 1 ♀ 4/VI/1972, 1 ♂ 6/VI/1972, Townes H. & M. Townes (AEIC); Custer Co., 1 ♂ 21/VIII/1951, Dreisbach R.R. (MSUC). New Jersey: Palmyra, 1 ♀ 29/VIII/1933, Cazier M.A. (AMNH); Bergenfield, 1 ♂ VIII/1918?, Schott F.M.; Lucaston, 1 ♂ 12/IX/1902, Daecke E. (USNM). New Mexico: Hatch, 1 ♀ 29/VIII/1974, 1 ♀ 30/VIII/1974, Townes H. & M. Townes (AEIC). Riverton, 2 ♂ 5/IX/1948; Westville, 1 ♀ 12/IX/1897 (USNM). New York: Cold Springs Harb, 1 ♂25/VII, Melander A.L. (AEIC). North Carolina: Clinton, 1 ♂ 24/V/1951, Townes H. & M. Townes; Nags Head, 1 ♂, 1 ♀ 25/V/1948, Krombein K.V.; Smokemont, 1 ♂ 15/VIII/1947, Bullock & Dreisbach (AEIC); Fort Bragg, Cumberland Co., 1 ♀ 27IX/3X/1967, Birchim Jim D. (CAS); Cabo Hatteras mt. Buxton, 1 ♂14/VIII/1961, Howden H.; Highlands, 1 ♂4/VI/1957, 1158 m., Vockeroth J.R. (CNC). Jacksonville, Onslow Co., 1 ♂IX/1963; Kill Devil Hills, 2 ♂ 26/VI/1954, 1 ♀ 2/VII/1954, Krombein Karl V.; (HIC); Kill Devil Hills, 2 ♀, 6 ♂ 1/VII/1954, 1 ♀ 2/VII/1954, 1 ♀ 22/VI/1954, 2 ♂ 23/VI/1954, 1 ♀, 7 ♂ 26/VI/1954, 1 ♂ 28/VI/1954, 1 ♂ 3/VII/1954, 1 ♀, 8 ♂ 30/VI/1954, Krombein Karl V.; Raleigh, 1 ♂ 20/V/1937 (UMSP); Salvo, Dare Co., 1 ♂ 6/VIII/1958, Krombein (USNM); Southern Pines, 1 ♀ 3/V/1951, Howden H. & A. Howden; 1 ♀ 16/IX/1956, Krombein Karl V.; 1 ♂ 16/VIII (AEIC, USNM). North Dakota: 7 miles SE Sheldon, Ransom Co., 1 ♂5/VIII/1973, Powers J.R.; 11 miles W Walcott, Richland Co., 2 ♀ 23/V/1988, Powers J.R. (EMEC). Oklahoma: Lake Texoma 2 miles E Willis, 1 ♂ VI/1965, Bohart R.M. (UCDC); Cimarron River near Freedom, Woods Co. 1 ♀ 11/V/1984, Hevel G.F. & J.F. Hevel (USNM). Pennsylvania: Dauphin, 1 ♂ 6/VI/1909, Daecke E. (USNM); Philadelphia, 1 ♂, 1991?, Fox (USNM). Rhode Island: Providence 1 ♂ (USNM). South Carolina: Greenville, 1 ♂ 2/X/1941, 1 ♂ 8/X/1941, Townes H. & M. Townes (AEIC). Tennessee: Jefferson City, 2 ♀ 7/VII/1947, Valentine B.D. (CNC). Texas: Junction, Kimble Co., 1 ♀ 5/V/1986, Pulawski W.J. (CAS); Seagoville cerca Dallas, 2 ♀ XI/1944, Weyrauch (IMLA); Austin 1 ♂ (MCZ); Huntsville, Chartman 1 ♂; New Boston, 1 ♂ 17/X/1905, Bishopp F.C.; Pierce, 1 ♂ 22/IV/1907, alfalfa, Mitchell J.D. (USNM). Virginia: Ft. Humphreys, 1 ♂ 6/IX/1928, Mickel C.E. (UMSP); Barcroft, 1 ♂ 2/IX/1934, Bridwell J.C.; Falls Church, 1 ♀ 30/VIII/1923, Greene C.T.; Nelson Co., 1 ♀ 17/VIII/1927, Robinson W.; Rosslyn, 1 ♀ V/1929; Tazewell, 1 ♀ 9/VI/1915, Jackson L.O. (USNM). Wisconsin: Griffith St. Nursery, Wood Co., 1 ♂ 8/VI/1948, Shenefelt R.D. (AEIC).