Grumichella trujilloi, Calor, Adolfo R., Holzenthal, Ralph W. & Froehlich, Claudio G., 2016

Calor, Adolfo R., Holzenthal, Ralph W. & Froehlich, Claudio G., 2016, Phylogeny and revision of the Neotropical genus Grumichella Müller (Trichoptera: Leptoceridae), including nine new species and a key, Zoological Journal of the Linnean Society 176 (1), pp. 137-169 : 158-159

GRUMICHELLA TRUJILLOI CALOR & HOLZENTHAL SP. NOV. ( FIG. 16 )

Diagnosis: Grumichella trujilloi can be diagnosed by the following characters: male forewings with 12 brown spots; male genitalia bearing segment X flattened, lateral view; 1st article of inferior appendage bearing small basomesal protuberance; 2nd article of inferior appendage subequal in length to apicodorsal portion of 1st article; apex of 2nd article acuminated, curved mesad. Grumichella trujilloi is most similar to G. cressae and G. blahniki , but differs in having the 2nd article of inferior appendage shorter than the apicodorsal portion of the 1st article, and in having segment X, in lateral view, not flattened.

Adult: Head and body yellowish brown.

Male: Forewing length: 9–11 mm. Forewing light golden brown, with 12 small brown spots. Male genitalia as in Figure 16 . Abdominal segment IX annular; in dorsal view, with anterior margin nearly straight, posterior margin sinuate; in lateral view, pleural region setose; tergum IX bearing a pair of small probuberances posterodorsally. Preanal appendage setose, at least 4× as long as wide; in lateral view, digitate, apex rounded. Segment X saddle-shaped; in lateral view flattened, dorsal margin slightly concave, apex upcurved, ventral margin convex; segment X in dorsal view, subtriangular, with posterolateral borders not developed, lateral margins sinuate, with apicodorsal shelf, shelf variable, acuminate to rounded, almost as wide as apex of segment X, with ventral sulcus apically. Inferior appendage slightly concave in ventral view, with basal region enlarged; subquadrangular basally, setose, bearing a small basomesal protuberance; 2nd article subequal in length to apicodorsal portion of 1st article, narrow, tapering throughout length, but constricted subapically or broad basally, tapering throughout length, mesal

KEY TO MALES OF GRUMICHELLA MÜLLER

1. Forewing with 2–3 small brown spots... 2

Forewing with 9–12 small brown spots... 9

2(1). Inferior appendage basally bearing a basomesal protuberance ( Fig 2 )... 3

Inferior appendage basally not bearing a basomesal protuberance ( Fig 14 )... 6

3(2). Segment X, in lateral view, not flattened ( Fig 2 )... 4

Segment X, in lateral view, flattened ( Fig 6 )... 5

4(3). 2nd article of inferior appendage with mesal surface not excavate; 2nd article with apex pointed ( Fig 8 )... Grumichella boraceia sp. nov.

2nd article of inferior appendage with mesal surface excavate; 2nd article with apex blunt ( Fig 2 )... Grumichella aequiunguis Flint

5(3). 2nd article of inferior appendage subequal in length to apicodorsal portion of 1st article; segment X without sulcus apically ( Fig 6 )... Grumichella rostrata Thienemann

2nd article of inferior appendage longer than apicodorsal portion of 1st article; segment X with small sulcus apically ( Fig 11 )... Grumichella leccii sp. nov.

6(2). 2nd article of inferior appendage shorter than apicodorsal portion of 1st article... 7

2nd article of inferior appendage subequal in length or longer than apicodorsal portion of 1st article... 8

7(6). Segment X with posterolateral borders developed; apicodorsal shelf on segment X 1/3 to 1/2 as wide as apex of segment X ( Fig 14 )... Grumichella paprockii sp. nov.

Segment X with posterolateral borders not developed; apicodorsal shelf on segment X 2/3 to almost as wide as apex of segment X ( Fig 12 )... Grumichella muelleri sp. nov.

8(6). 2nd article of inferior appendage subequal in length to apicodorsal portion of 1st article; segment X with posterolateral borders not developed ( Fig 10 )... Grumichella jureia sp. nov.

2nd article of inferior appendage longer than apicodorsal portion of 1st article; segment X with posterolateral borders developed ( Fig 15 )... Grumichella parati sp. nov.

9(1). 2nd article of inferior appendage shorter than apicodorsal portion of 1st article; segment X, in lateral view, not flattened... 10

2nd article of inferior appendage subequal in length or longer than apicodorsal portion of 1st article; segment X, in lateral view, flattened ( Fig 11 )... Grumichella trujilloi sp. nov.

10(9). Segment X with posterolateral borders developed; tergum IX bearing 1-2 small protuberances posterodorsally ( Fig 9 )... Grumichella cressae sp. nov.

Segment X with posterolateral borders not developed; tergum IX without protuberances dorsally ( Fig 7 )... 11

11(10). Forewing with 12 small brown spots... Grumichella blahniki sp. nov.

Forewing with 9 small brown spots... 12

12(11). Apicodorsal portion of 1st article of inferior appendage digitate ( Fig 3 )... Grumichella flaveola Ulmer Apicodorsal portion of 1st article of inferior appendage quadrate ( Fig 5 )... Grumichella pulchella Banks

surface excavate, apex pointed, curved mesally; apicordorsal portion of 1st article digitate, setose. Phallic apparatus simple, phallicata slightly down-curved; with pair of subequal, wide, posterodorsally directed lateral flanges, apices not acuminate; phallotremal sclerites relativelly large, U-shaped in dorsal view.

Female: Head and body yellowish. Forewing length: 6–7 mm. Forewing yellowish to brown, without dark setae on posterodorsal region. Genitalia inseparable from congeners. Abdominal segment IX lightly sclerotized, with dorsal plate, bearing pair of setose protuberances above appendages of segment X, appendages of segment X small; valves flat, thin, lightly sclerotized, with very short setae.

Etymology: The name of the species refers to the state of Trujillo, Venezuela, where the species was collected.

Distribution: Venezuela.

Figures

Figure 2. Grumichella aequiunguis, male. A, genitalia, lateral view. B, genitalia, dorsal view. C, phallus, lateral view. D, inferior appendage, ventral view.

Figure 3. Grumichella flaveola, male. A, forewings. B, hind wings. C, head, lateral view. D, head, dorsal view. E, genitalia, lateral view. F, genitalia, dorsal view. G, phallus, lateral view. H, inferior appendage, ventral view.

Figure 5. Grumichella pulchella, male. A, genitalia, lateral view. B, aedeagus, lateral view. C, inferior appendage, ventral view.

Figure 6. Grumichella rostrata, male. A, genitalia, lateral view. B, genitalia, dorsal view. C, inferior appendage, ventral view.

Figure 7. Grumichella blahniki, male. A, forewings. B, hind wings. C, genitalia, lateral view. D, genitalia, dorsal view. E, phallus, lateral view. F, inferior appendage, ventral view.

Figure 8. Grumichella boraceia, male. A, genitalia, lateral view (apex of 2nd article of inferior appendage, medial view). B, genitalia, dorsal view. C, phallus, lateral view. D, inferior appendage, ventral view.

Figure 9. Grumichella cressae, male. A, genitalia, lateral view. B, genitalia, dorsal view. C, phallus, lateral view. D, in- ferior appendage, ventral view.

Figure 10. Grumichella jureia, male. A, genitalia, lateral view. B, genitalia, dorsal view. C, phallus, lateral view. D, in- ferior appendage, ventral view.

Figure 11. Grumichella leccii, male. A, genitalia, lateral view. B, genitalia, dorsal view. C, phallus, lateral view. D, inferior appendage, ventral view.

Figure 12. Grumichella muelleri, male. A, genitalia, lateral view. B, genitalia, dorsal view. C, phallus, lateral view. D, inferior appendage, ventral view.

Figure 14. Grumichella paprockii, male. A, genitalia, lateral view. B, genitalia, dorsal view. C, phallus, lateral view. D, inferior appendage, ventral view.

Figure 15. Grumichella parati, male. A, genitalia, lateral view. B, genitalia, dorsal view. C, phallus, lateral view. D, inferior appendage, ventral view.

Figure 16. Grumichella trujilloi, male. A, genitalia, lateral view. B, genitalia, dorsal view. C, phallus, lateral view. D, inferior appendage, ventral view.