Keys to the Subfamilies & Genera of South Korean Asilidae

by Fritz Geller-Grimm (1998) & Artigas & Papavero (1988) 

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The following Subfamily key is provisional and does not include the subfamily Dioctriinae. For best results,

use the key in conjunction with the subfamily diagnostic characters listed under Keys in the main menu.  

1. Abdominal tergite 1 five or more times as long as wide (Fig. 1). Alula and pulvilli  lacking. Abdominal sternite 1 extending approximately halfway back under tergite 2; small, delicate flies . . . Leptogastrinae Shiner, 1862

 

 

 

 

 

 

 

 

 

 

 

 

 

-  Abdominal tergite 1 no more than four times as long as wide. Usually both alula and pulvilli present. Abdominal sternite 1 confined beneath tergite 1 . . . 2

 

 

2. Apical spine on fore tibia, sometimes twisted and sigmoid (Fig. 2). Prosternum dissociated by a membranous area from proepisternum (Fig. 8) . . . Dasypogoninae Macquart, 1838

 

 

 

 

 

 

-  No apical spine on fore tibia . . . 3

 

 

 

3. Apex of R2+3 directed sharply forward, meeting C at an angle of about 90 degrees, ending either at distal end of R1 (cell r1 closed) (Fig. 3) or a short distance from R1 along C (cell r1 open) (Fig. 4). Vein R4 strongly sinuate and arched forward after separation from R5. Cells m3 and cup always closed before the wing margin. Prosternum fused to proepisternum (Fig. 9). Male with only six tergites visible dorsally . . . Laphystiinae Hardy, 1948 [not recorded from South Korea.]

 

 

 

 

 

 

 

 

 

 

- Apex of R2+3 not directed forward before ending in C or R1. R4 not unusually arched or sinuate. Cells m3 and cup open to wing margin, or one of the two closed, or both closed. Prosternum dissociated from  proepisternum or fused to it. Male with six to eight tergites visible dorsally . . . 4

 

 

 

4. R2+3 ending in C  (Fig. 5). Neither a strong bristle present on the supero-posterior angle of anepisternum nor a row of bristles present on the katatergite (Fig. 7) . . . 5

 

 

- R2+3 joining R1 proximal to end of R1, with cell r1 thus separated from wing margin (Fig. 6). Either anepisternum with at least one strong bristle on its supero-posterior angle, or katatergite with a vertical row of bristles or bristly hairs (Fig. 7) . . . 7  

 

 

 

 

 

 

 

 

 

 

5. Prosternum dissociated from proepisternum by a membranous area (Fig. 8) . . . Stenopogoninae Hull, 1962 

 

-Prosternum fused to proepisternum, forming a precoxal bridge (Fig. 9) . . .

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6. Frons narrowed at level of insertion of antennae and then suddenly and widely diverging towards apex, which is extremely shallow (eyes much more distant at vertex than at antennal level). Face without tentorial pits or grooves, flat above and prominent below or very gibbose. Posterodorsal corner of metepimeron bare. Abdomen slender. Female terminalia with characteristic ventral keel and spines . . . Stichopogoninae Hardy, 1930

 

 

 

 

 

 

 

 

 

 

 

- Frons approximately of same width at level of antennal insertion and vertex, the latter excavated (eyes not noticeably more distant at vertex then at antennal level). Face with pronounced tentorial pits or grooves extending well above lower facial margin. Face in profile not produced beyond eye margin. Posterolateral corners of metepimeron with short hairs. Abdomen very short, usually three-quarters or less width of wing. Female terminalia simple, tubular, without spines. Remark: Some genera seem to have spines on acanthophorites and a keel on sternite 8 in females (e.g. Oligopogon) . . . Trigonomiminae Enderlein, 1914

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7. Supero-posterior angle of anepisternum, in front of wing insertion, with at least one strong, long bristle. Katatergite never with vertical row of bristles. Prosternum fused to proepisternum (Fig. 9) . Palpus, one or two segmented. Female terminalia without spines . . . Laphriinae Macquart, 1838 

 

- Supero-posterior angle of anepisternum never with a strong, long bristle. Katatergite with a vertical row of long bristles or bristly hairs (rarely reduced to only one bristle). Prosternum dissociated from proepisternum or fused to it. Palpus always one-segmented. Female terminalia with or without spines . . .

 

 

 

8. Anatergite pilose, the hair situated on top of it (Fig. 7). R4 never with an extra vein . . . Asilinae Leach, 1819 

 
- Anatergite bare, or if some hairs, these placed mostly on latero-internal margin of anatergite and on immediately adjacent area of mediotergite, but never on top of anatergite and R4, in this case , always with a short extra vein present at its junction with R5, the short vein ending in cell r2+3 (Fig. 6) 

 

 

 

9. Antennal style plumose (Fig. 10). Postmetacoxal area heavily sclerotized, forming a complete bridge behind hind coxae (Fig. 11 ) . . . Ommatiinae Hardy, 1927

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- Antennal stylus bare (Fig. 12). Postmetacoxal area membranous (Fig. 13) . . . Apocleinae Lehr, 1969

 

 

 

 

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Fig. 4 Wing (r1 open)

Fig. 3 Wing (r1 closed)

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Fig. 1

Fig. 9 Prosternum

fused

Fig. 8 Prosternum dissociated

Fig. 5 Wing
Fig. 6 Wing
Fig. 7

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Stichopogoninae

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Trigonomiminae

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Fig. 2

Fig. 11

Fig. 10

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Fig. 12

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Fig. 13

Genera Keys & Determination Images listed under Subfamilies on main menu ( top menu bar)