The Larvae of European Ascalaphidae (Neuroptera)
Author
Badano, Davide
Author
Pantaleoni, Roberto Antonio
text
Zootaxa
2014
2014-05-19
3796
2
287
319
journal article
5602
10.11646/zootaxa.3796.2.4
e0da9034-33f3-4508-aae5-c5dbeb2ee4c3
1175-5326
4915173
D64A7C50-26ED-4D39-B376-2200CCCB138E
Bubopsis agrionoides
(Rambur, 1838)
(
Figs. 2B
,
3B
,
6
)
Larva of this species is described here for the first time.
FIGURE 6.
Bubopsis agrionoides
(Rambur, 1838)
, 3
rd
instar larva (France: Hérault, Argelliers). Dorsal (above), ventral (middle) and lateral (below) view; a–e: diagnostic characters, see species description.
Examined specimens.
France
.
Hérault
,
Argelliers
,
Les Hauts de Boscorre
, holm oak wood on limestones;
VI.2011
, (
D. Badano
&
B. Michel
) 3 L3 and 2 L2 laboratory-reared to L3; same locality
VII.2011
, (
D. Badano
), 1 L3 and 1 L2 laboratory-reared to L3
.
Description of 3
rd
instar larva.
Size (based on
7 specimens
): BL
13.86 mm
; HL
3.09 mm
(2.90–3.34), HW
3.59 mm
(3.32–3.82), ML
4.07 mm
(3.89–4.25), HW/HL 1.32, ML/HL 1.16. General colouring ochre with extensive grey markings and spots, dorsal side of the head capsule grey with ochre markings, ventral side of the head grey, mandibles black; legs dark grey; body extensively covered by white dolichasters. Head wider than long, slightly dilated posteriorly with a deep dorsal posterior depression; ocular tubercles with an apical bulge (
Fig. 6b
); clypeo-labrum thickly covered by white dolichasters (
Fig. 6c
); mandibles noticeably longer than the head capsule, distal portion bent outward (
Fig. 6a
); teeth small, distance between the base of the mandible and the basal tooth larger than that between the teeth; interdental pseudo-teeth: (4–2)(5–2)(0); base of the mandible covered by white dolichasters; external margin of the mandible covered by short setae. Pronotum thickly covered by white dolichasters; mesothoracic spiracles yellowish; mesothoracic scolus-like processes bent backward; first pair of metathoracic scolus-like processes conspicuous, each process characterized by one anterior and one posterior protrusion (
Fig. 6d
); second pair very short, unnoticeable, cylindrical in shape (
Fig. 6e
). Abdominal spiracles disposed on the lateral sides, the pair on the 1
st
abdominal segment situated slightly above the others; dorsal series of abdominal scolus-like processes conspicuous, each process with one anterior and one posterior protrusions; IX sternite with short rastra, surrounded by black robust setae (
Fig. 2B
).
Bio-ecology.
B. agrionoides
is associated with open, rocky Mediterranean biotopes, such as: scrublands, open woods and grasslands with isolated trees. The studied larvae were collected on the soil under large stones in barren calcareous areas surrounded by holm-oak hedges. The larvae are exclusively ambush predators and they camouflages themselves using the rock dust retained by the dolichasters. The development period of this species probably lasts two years, as suggested by the contemporary presence of L2, L3 and adults in the same period of the year.
Distribution.
Western Mediterranean faunal element reported from southern
France
, Iberian Peninsula,
Morocco
and Lampedusa Island (
Italy
).
Remarks.
Larvae of the genus
Bubopsis
are poorly known. Besides
B. agrionoides
, only the larvae of
B. andromache
have been identified, although the existing description (
Pieper & Willmann 1980
) is not adequate to differentiate the two species.