29 



left and on the right side, though pairs can be identified in many cases; those inserting on 

 the left half of the subgenital plate are given odd numbers, those inserting on the right 

 half are given even numbers. (In species having side-reversed phallomeres the reverse is 

 true). Only the "peripheral" muscles p will be designated pairwise. 



4.5. The terminology for the articulations 



Articulations between sclerites are named by A ("Articulation") and an added number (e.g. 

 A5, A98). The numbers 1-79 are reserved for the articulations within the phallomere 

 complex, the numbers 80-99 for the articulations outside the phallomere complex. 

 Numbering is arbitrary. The term articulation is taken in its widest sense: each case of 

 close contact between two sclerites. Even if the contact has become looser by evolutionary 

 changes, the remaining vicinity of the sclerites will in many cases still be designated as 

 an articulation (in order to designate the assumed homology of the respective vicinity). 

 Places where articulations have been lost by a fusion of the sclerites concerned are often 

 given the name of the respective articulation, but * is added (e.g. A99*). 



4.6. Survey of the terminologies used 



Main sclerites / sclerite groups of the phallomere complex: 



L 2 



Capital letter Number 



(side: L, R) (main sclerite) 



Regions of the main sclerites / sclerite groups of the phallomere complex: 



L 2 d 



Capital letter Number Small letter 



(side: L, R) (main sclerite) (specific region) 



Individual sclerites of the main sclerites / sclerite groups of the phallomere complex: 



Capital letter 

 (side: L, R) 



2 



Number 

 (main sclerite) 



D 



Capital letter 

 (individual sclerite) 



Postabdominal sclerites outside the phallomere complex: 



S 9 



Capital letter Number 



(category: S, T, E) (abdominal segment) 



Formaüve elements of the phallomere complex: 



Small letter 

 (specific region) 



Small letter 



(part of individual name) 



Muscles: 

 r 



Small letter 

 (category: 1, r, b, s, p) 



Small letter 



(part of individual name) 

 4 



Number 



(individual muscle) 



Small letter 

 (category: a, e) 



Small letter 



(separate part of the muscle) 



