360 PROCEEDINGS OF THE NATIONAL MUSEUM vol. io9 



distal part of cell M2, the distal one broadly meeting wing margin; the 

 proximal one connected by a pale area extending to base of cell and 

 including the pale spots lying in front of mediocubital fork and behind 

 medial fork ; pale area in cell M4 nearly filling entire cell ; anal cell pale 

 except for a large dark area centering on middle of stem of medio- 

 cubital vein. Macrotrichia very sparse, appearing only on distal 

 fourth of wing in cells R5, Mi and M2; costa extending to 0.61 (0.59- 

 0.62, n=10) of distance to wing tip. Halter pale. 



Abdomen. — Light brown, whitish on basal half above. Spermathecae 

 two, ovoid to slightly pyriform, slightly unequal, measuring 0.057 by 

 0.042 mm. and 0.046 by 0.031 mm., the bases of the ducts sclerotized 

 for a considerable distance. 



Male genitalia: Ninth sternum with very shallow caudomedian 

 excavation; ninth tergum markedly tapering, the large, triangular, 

 apicolateral processes situated relatively close together. Basistyle 

 with ventral root large and foot-shaped, dorsal root slender; dististyle 

 long and slender with bent, pointed tip. Aedeagus with basal arch 

 rounded, extending to two-thirds of total length, the basal arms well 

 sclerotized and curved; the short distal portion broad with truncate 

 apex. Parameres each with large basal knob, stem stout, abruptly 

 bent a short distance from base, the midportion short and bearing 

 a long ventral lobe, distal portion slender and abruptly bent and 

 bearing a lateral fringe of fine spines before the pointed tip. 



Distribution: Panama. 



Panama records: 

 Canal Zone: Barro Colorado Island (January- March 1944, Zetek), Fort Davis, 



Fort Sherman, Gamboa, Huile Sia Clara (?), Loma Boracho, Madden Dam 



(type locality), Mandinga River, Mojinga Swamp. 

 PanamX Province: El Coco, Pedregal. 

 Veraguas Province: Rio Santa Maria. 



Discussion: By wing pattern, general appearance, and structure 

 of the male genitalia, carpenteri appears to be related to camposi Ortiz 

 and Leon, galindoi Wirth and Blanton, and limai Barretto, but the 

 sensorial pattern, with sensoria present on segments iii, xi-xiv, does 

 not resemble that of any of these species, and the true relation of 

 carpenteri thus remains obscure. 



40. Culicoides magnipalpis Wirth and Blanton 



Figure 43 



Culicoides magnipalpis Wirth and Blanton, 1953, Journ. Washington Acad. 

 Sci., vol. 43, p. 76 (male, female; Panama; fig. wing, antenna, spermathecae, 

 male genitalia) . 



Female: Length of wing 1.07 (1.06-1.09, n=2) mm. 

 Head. — Eyes narrowly separated, bare. Antenna with flagellar 

 segments in proportion of 19:17:18:17:18:17:17:18:23:23:23:23:32, 



