Thyreodon

FERNÁNDEZ-TRIANA, JOSÉ L., 2005, The taxonomy and biogeography of Cuban Ophioninae (Hymenoptera: Ichneumonidae), Zootaxa 1007 (1), pp. 1-60 : 17-18

Key to species of Thyreodon occurring in Cuba

(parenthesis after the names in the key refer to the number assigned to each species

through the paper, making easier to find them in the text)

1 Ocelli very large, touching or almost touching the margin of the eye, the lateral ones closer to eye than their minimum diameter ( Fig. 8a ) .................................... 2

1' Ocelli small, separated from the margin of the eye by a distance that is at least equal to maximum ocellar diameter (8b) ............................................................... 3

2 (1) Very large insects; fore wing length> 21 mm (27.5 mm in Cuban specimen) and hyaline with variably extensive brown areas ..................................... atriventris (6)

2' Smaller insects, fore wing length <20 mm (at most 17 mm in Cuban specimens) and faint golden yellow with only dusky tips .................................... fulvescens (8)

3 (1') Mesosoma brown with profuse yellow markings; 1st metasomal segment mostly yellow, but rarely with yellow markings only in basal half of sternite; wings pale golden with much dusky staining apically and also on base of hind wing............... ............................................................................................................... elegans (7)

3' Colour pattern not as above, mostly uniformly black, brown or orange species with dark wings ...................................................................................................... 4

4 (3') Notauli conspicuous, impressed nearly for entire length of mesoscutum; and with front end bordered with crest ................................................................................. 5

4' Notauli rather weak, shallow or absent; and/or without crest on its front end ...... 6

5 (4) Body colour orange­brown with only black marks on the metasoma ...... affinis (4)

5' Body colour shining black ........................................................................ ultor (11)

6 (5') Body colour mostly shining black; metapleuron with strong and sharp rugae transversly on all of metapleuron ................................................................. grandis (10)

6' Body colour mostly dark reddish brown; metapleuron punctate, with few rugae dorsally and posteriorly ......................................................................................... 7

7 (6) Crests between antennal sockets not meeting dorsally; occipital carina reaching the hypostomal carina in a rather acute angle; lateral ocellus separate from eye by more than 1.9 its own diameter ................................................. gabrieli sp. nov. (9)

7' Crest between antennal sockets meeting dorsally; occipital carina not reaching the hypostomal carina; lateral ocellus separate from eye by 1.6 its own diameter ....... .................................................................................................... alayoi sp. nov. (5)

Figures

FIGURE 8: Thyreodon heads showing large (A) and small (B) ocelli.