J.
Med. Entomol.
10 February
Vol. 14, no. 5: 553-564
1978
NEW SPECIES OF CULICOIDES BITING MIDGES (DIPTERA: CERA TOPOGONIDAE) FROM COLOMBIA By Willis W. Wirthl and Pablo Barreto2 Abstract: Eight new species of Clllicoides biting midges arc described and figured from material collected during a survey of bloodsucking insects on the Rio Raposo, Valle, Colombia: Clllicoides beal'eri, C. dalessandroi, C. eldridgei, C. raposoellsis, C. sall/Ilar/ini, C. tere/ipalpis, C. traPidoi, and C. yowlgi.
From 1962 to 1965 a survey for arboviruses was conducted at a site on the Rio Raposo, Departamento de Valle, Colombia, under the joint auspices of the U niversidad del Valle, the Rockefeller Foundation, and the Tulane University International Center for Medical Research. Lee & Barreto (1969) reported on the ecological aspects of this study. During the course of the project, the Culicoides midges were sorted by Vernon H. Lee and sent to the senior author for determination. The purpose of the present paper is to present descriptions of 8 new species of Culicoides from the Rio Raposo collections to make the names available for more comprehensive reports on the distribution and biology of the Rio Raposo biting midges. The terminology used in our descriptions follows that eXplained in mOre comprehensive revisions by Wirth & Blanton for Panama (1959), the Amazon Basin (1973), and the West Indies (1974). Culicoides sanm.artini Wirth & Barreto, n. sp. FIG. I
)'. Wing length, 0.97 (0.91-1.09, n=12) mm. Head: Eyes (FIG. If) contiguous, bare. Antenna (FIG. Id, e) with lengths of flagdlar segments in proportion of 16-11-12-13-13-13-12-1220-22-22-25-39; AR 1.24 (1.18-1.33, n=9); sensory pattern 3, 11··15. Palpal segments (FIG. Ig) with lengths in proportion of 5-16-20-11-10; PR 2.6 (25-3.0, n= 12); 3rd segment (FIG. Ij) moderately swollen with sensilla borne in an inconspicuous, irregular, sensory pit on distal 1/2. Proboscis moderately long, P/H ratio 0.78; mandible with 16 (14-18, n=24) teeth. Thorax: Unifonnly tawny pale brown. Legs (FIG. Ik) tawny pale brown, slightly paler than thorax, without pale banding; tibial comb (FIG. II) with 5 spines, 2nd from spur longest. Wing (FIG. Ib): Pattern as figured, markings relatively indistinct; 2nd radial cell included in pale spot nearly to its base; rom in large pale area extending from costal margin posteriorly to mediocubital fork; crossvein not infuscated; base of wing pale from costal margin over proximal 1/3 of anal cell; distal pale spot in cell R5 transverse, moderately broad, indistinctly extending to anterior wing margin; cell MI with only I large pale spot distad of large pale area straddling proximal portion of vein M2; cell M2 with a large, indistinct, pale area broadly meeting _._~-_._-
-.-
---
----
-----..
--
~---
'Systematic Entomology Laboratory, IIBIII, Agric. Res. Serv., USDA, clo U. S. National Museum of Natural History, Washington, D. C. 20560, U.S.A. 2Departamento de Microbiologia, Universidad de Valle, Cali, Colombia.
wing margin; cell M4 with a large, rounded, pale ,pot in distal portion and a pale area at base bordering mediocubital fork; anal cell with large pale area in distal portion. Macrotrichia moderately sparse on distal 1/3 of wing; 2nd radial cell with moderately broad lumen; CR 0.67 (0.65-0.67, n=12). Halter moderately infuscated. Abdomen: Pale brown. Spermathecae (FIG. Ic) 2 plus rudimentary 3rd and sc1erotized ring; ovoid with slender necks; ~Iightly unequal, measuring 0.048 X 0.034 mm and 0.043 X 0.032 mm. ~. Similar to C(, with usual sexual differences; antenna with well-developed pale brownish plume; last 3 segments (FIG. la) elongated, segments 12-15 with lengths in proportion of 16-3640-48; sensory pattern 3, 13-15. Palpu3 as in FIG. Ih, i. Geni/alia (FIG. In): 9th sternum with posterior margin transverse, ventral membrane not spiculate; 9th tergum short and rounded, apicolateral processes short, pointed, widely spaced, the caudal margin between them nearly transverse. Basistyle moderately stout, mesal margin with moderately numerous spinules, ventral and dorsal roots poorly developed; dististyle slender, tapering, curving to slender, pointed tip. Aedeagus with low basal arch bordered with a narrow sc1erotized band, moderately narrow at base; distally tapering to a slender tip bearing a terminal papilla and an internal sc1erotized peg. Parameres (FIG. 1m) joined at extreme bases by a sc1erotizedbridge, tapering distally to slender, pointed tips bearing microscopic fringing setae.
Distribution. Types:
Colombia, Ecuador.
Holotype
COLOMBIA,
~,
Rio
111.1964, V.
Raposo,
H.
Lee,
Valle,
light
trap
(type no. 71152, USNM); allotype d', same data except l.VII.1964. Paratypes, 34 d'd', 133 as follows: COLOMBIA: 28 d'd', 93 ~~, Rio Raposo, III-VIII.l963, II-XII.l964, II-IV. 1965. 3 d'd', 7 ~~, Valle, Rio Micay, Puerto Lopez, 23.IX.1965, light trap, V. H. Lee. 23 ~~, Valle, Rio Micay, Casa de Suarez, 23.IX.l965, light trap, V. H. Lee. ECUADOR: 3 d'd', 10 ~~, Cayapas, Esmeraldas Prov., l2.XII.1956, L. A. Leon.
n,
Discussion. This species is named for Dr Carlos Sanmartin, Departamento de Medicina Preventiva de la Universidad del Valle, Colombia, who served as virologist on the Rio Raposo project. Culicoides sanmartini keys out in Wirth & Blanton's (1973) key to Amazon Culicoides to C. lutzi Costa Lima and C. batesi Wirth & Blanton. Both species have the 2nd radial cell included in a pale spot, the base of cell M4 pale bordering veins M3 4, cell Ml with only 1 pale spot distal to the pale spot straddling vein M2, vein R4 5 not blackened where it extends into the pale area over the 2nd radial cell, and the 3rd palpal segment bearing an irregular sensory pit. C. lutzi and C. batesi are both
+
+
J. Med.
554
Entomol.
Vol. 14, no. 5
••
o
G.IIIII"Io
f
.:~
"
A
I:"
i~::::.:.::.
Med. Entomol.
10 February
Vol. 14, no. 5: 553-564
1978
NEW SPECIES OF CULICOIDES BITING MIDGES (DIPTERA: CERA TOPOGONIDAE) FROM COLOMBIA By Willis W. Wirthl and Pablo Barreto2 Abstract: Eight new species of Clllicoides biting midges arc described and figured from material collected during a survey of bloodsucking insects on the Rio Raposo, Valle, Colombia: Clllicoides beal'eri, C. dalessandroi, C. eldridgei, C. raposoellsis, C. sall/Ilar/ini, C. tere/ipalpis, C. traPidoi, and C. yowlgi.
From 1962 to 1965 a survey for arboviruses was conducted at a site on the Rio Raposo, Departamento de Valle, Colombia, under the joint auspices of the U niversidad del Valle, the Rockefeller Foundation, and the Tulane University International Center for Medical Research. Lee & Barreto (1969) reported on the ecological aspects of this study. During the course of the project, the Culicoides midges were sorted by Vernon H. Lee and sent to the senior author for determination. The purpose of the present paper is to present descriptions of 8 new species of Culicoides from the Rio Raposo collections to make the names available for more comprehensive reports on the distribution and biology of the Rio Raposo biting midges. The terminology used in our descriptions follows that eXplained in mOre comprehensive revisions by Wirth & Blanton for Panama (1959), the Amazon Basin (1973), and the West Indies (1974). Culicoides sanm.artini Wirth & Barreto, n. sp. FIG. I
)'. Wing length, 0.97 (0.91-1.09, n=12) mm. Head: Eyes (FIG. If) contiguous, bare. Antenna (FIG. Id, e) with lengths of flagdlar segments in proportion of 16-11-12-13-13-13-12-1220-22-22-25-39; AR 1.24 (1.18-1.33, n=9); sensory pattern 3, 11··15. Palpal segments (FIG. Ig) with lengths in proportion of 5-16-20-11-10; PR 2.6 (25-3.0, n= 12); 3rd segment (FIG. Ij) moderately swollen with sensilla borne in an inconspicuous, irregular, sensory pit on distal 1/2. Proboscis moderately long, P/H ratio 0.78; mandible with 16 (14-18, n=24) teeth. Thorax: Unifonnly tawny pale brown. Legs (FIG. Ik) tawny pale brown, slightly paler than thorax, without pale banding; tibial comb (FIG. II) with 5 spines, 2nd from spur longest. Wing (FIG. Ib): Pattern as figured, markings relatively indistinct; 2nd radial cell included in pale spot nearly to its base; rom in large pale area extending from costal margin posteriorly to mediocubital fork; crossvein not infuscated; base of wing pale from costal margin over proximal 1/3 of anal cell; distal pale spot in cell R5 transverse, moderately broad, indistinctly extending to anterior wing margin; cell MI with only I large pale spot distad of large pale area straddling proximal portion of vein M2; cell M2 with a large, indistinct, pale area broadly meeting _._~-_._-
-.-
---
----
-----..
--
~---
'Systematic Entomology Laboratory, IIBIII, Agric. Res. Serv., USDA, clo U. S. National Museum of Natural History, Washington, D. C. 20560, U.S.A. 2Departamento de Microbiologia, Universidad de Valle, Cali, Colombia.
wing margin; cell M4 with a large, rounded, pale ,pot in distal portion and a pale area at base bordering mediocubital fork; anal cell with large pale area in distal portion. Macrotrichia moderately sparse on distal 1/3 of wing; 2nd radial cell with moderately broad lumen; CR 0.67 (0.65-0.67, n=12). Halter moderately infuscated. Abdomen: Pale brown. Spermathecae (FIG. Ic) 2 plus rudimentary 3rd and sc1erotized ring; ovoid with slender necks; ~Iightly unequal, measuring 0.048 X 0.034 mm and 0.043 X 0.032 mm. ~. Similar to C(, with usual sexual differences; antenna with well-developed pale brownish plume; last 3 segments (FIG. la) elongated, segments 12-15 with lengths in proportion of 16-3640-48; sensory pattern 3, 13-15. Palpu3 as in FIG. Ih, i. Geni/alia (FIG. In): 9th sternum with posterior margin transverse, ventral membrane not spiculate; 9th tergum short and rounded, apicolateral processes short, pointed, widely spaced, the caudal margin between them nearly transverse. Basistyle moderately stout, mesal margin with moderately numerous spinules, ventral and dorsal roots poorly developed; dististyle slender, tapering, curving to slender, pointed tip. Aedeagus with low basal arch bordered with a narrow sc1erotized band, moderately narrow at base; distally tapering to a slender tip bearing a terminal papilla and an internal sc1erotized peg. Parameres (FIG. 1m) joined at extreme bases by a sc1erotizedbridge, tapering distally to slender, pointed tips bearing microscopic fringing setae.
Distribution. Types:
Colombia, Ecuador.
Holotype
COLOMBIA,
~,
Rio
111.1964, V.
Raposo,
H.
Lee,
Valle,
light
trap
(type no. 71152, USNM); allotype d', same data except l.VII.1964. Paratypes, 34 d'd', 133 as follows: COLOMBIA: 28 d'd', 93 ~~, Rio Raposo, III-VIII.l963, II-XII.l964, II-IV. 1965. 3 d'd', 7 ~~, Valle, Rio Micay, Puerto Lopez, 23.IX.1965, light trap, V. H. Lee. 23 ~~, Valle, Rio Micay, Casa de Suarez, 23.IX.l965, light trap, V. H. Lee. ECUADOR: 3 d'd', 10 ~~, Cayapas, Esmeraldas Prov., l2.XII.1956, L. A. Leon.
n,
Discussion. This species is named for Dr Carlos Sanmartin, Departamento de Medicina Preventiva de la Universidad del Valle, Colombia, who served as virologist on the Rio Raposo project. Culicoides sanmartini keys out in Wirth & Blanton's (1973) key to Amazon Culicoides to C. lutzi Costa Lima and C. batesi Wirth & Blanton. Both species have the 2nd radial cell included in a pale spot, the base of cell M4 pale bordering veins M3 4, cell Ml with only 1 pale spot distal to the pale spot straddling vein M2, vein R4 5 not blackened where it extends into the pale area over the 2nd radial cell, and the 3rd palpal segment bearing an irregular sensory pit. C. lutzi and C. batesi are both
+
+
J. Med.
554
Entomol.
Vol. 14, no. 5
••
o
G.IIIII"Io
f
.:~
"
A
I:"
i~::::.:.::.
