Paraindopamphantus, Malipatil & Scudder, 2018

Malipatil, M. B. & Scudder, G. G. E., 2018, ParaindOPaMPHantus bruneiensis gen. nov. et sp. nov., as the first representative of the subfamily Pamphantinae from South East Asia (Hemiptera: Heteroptera: Geocoridae: Pamphantinae: Indopamphantini), Zootaxa 4415 (1) : -

Genus Paraindopamphantus gen. nov.

Type-species: Paraindopamphantus bruneiensis sp. nov.

Description

Body strongly myrmecomorphic ( Figs. 1 & 2 ).

Head: Evenly sloping downward from posterior margin ( Fig. 4 ); bucculae produced near base as flaps ( Fig. 5 ), then gradually diminishing posteriorly to almost to surface of head near base of antenna; head below with gular area broadly conspicuously swollen increasingly from apex to base on either side of narrow median labial groove ( Figs. 4–6 ); eyes not reniform and placed on posteriorly rounded head well away from anterolateral corners of pronotum (e.g., Fig. 3 ). Labium with 3rd segment shortest. Labrum about as long as 1 st labial segment. Antenna with 1 st segment shortest, 2nd slightly longer than 4th ( Fig. 4 ).

Thorax: Pronotum with broad deep median transverse impression separating anterior and posterior lobes with a long stalk at about half length, lateral margins almost rounded and non-carinate ( Fig. 3 ). Thoracic pleura with sparse punctures ( Fig. 7 ), metathoracic scent gland auricle conspicuously projecting above surface of pleuron with spout turning upwards; evaporative area large, dull ( Fig. 7 ). Scutellum with transverse impression on basal ½, coarse deep punctures on sides and on posterior area, apex up curved and projecting above surface as a pointed cone (e.g., Fig. 7 ). Hemelytra extending to posterior margin of tergum VII ( Figs. 1 & 8 ); corium with more or less three rows of thick-set brown punctures; clavus with two rows of coarse punctures, one complete row along claval suture, 2nd row complete on inside apical ½, inner margin impunctate ( Fig. 8 ). Hind wing venation reduced. All femora almost similarly uniformly incrassate, unarmed ( Fig. 1 ).

Abdomen: Vasiform ( Fig. 10 ). First visible (i.e., II) and anterior part of second visible (i.e., III) segment strongly constricted to a parallel sided tube, and strengthened with longitudinal ridges on ventral surface ( Fig. 9 ). Spiracles II dorsal on membrane as connexivum almost absent, III dorsal on connexivum ( Fig. 11 ), IV, V, VI and VII ventral. Sutures between all tergal segments distinct, those between terga III-IV only slightly and those between IV-V and V-VI strongly curved caudad from margin to meson and with distinct scent gland scars which are subequal (the latter fractionally wider) in width, scar between III-IV indistinct (e.g., Fig. 10 ). Inner laterotergites greatly reduced. Sterna II, III and IV with intersegmental sutures faint, sutures reaching abdominal margin ( Figs. 12–14 ). Trichobothria on sternum III in loose triangle and those on IV almost linear to open triangle ( Fig. 14 ), variable in spacing; trichobothria on V, VI and VII typically lygaeoid, posterior to spiracle one above the other, spiracle of V and VI situated almost equidistant between anterior and posterior trichobothria.

In female, seventh sternum cleft with ovipositor.

Female genitalia —Ovipositor with first ramus traversing to almost 4/5 length of first gonapophysis ( Fig. 16 ); second gonapophysis spatulate with sparse minute setae in two rows ( Fig. 17 ).

Notes. Paraindopamphantus is the only second genus described from the Oriental Region, and differs from the first genus Indopamphantus in the characters in the key, as well as by having the pronotum with a long stalk that is about ½ as long as anterior and posterior lobes ( Fig. 3 ) (short stalk, much less than ½ as long as anterior and posterior lobes in Indopamphantus ), and the posterior lobe of the pronotum that is almost impunctate.

Figures

FIGURES 1–2. Paraindopamphantus bruneiensis, holotype female:1, habitus, dorsal view; 2, habitus, lateral view.

FIGURES 3–4. Paraindopamphantus bruneiensis, holotype female: 3, head and pronotum, dorsal view; 4, head and part of pronotum, lateral view. gs, gular swelling.

FIGURES 5–6. Paraindopamphantus bruneiensis, holotype female: 5, head, ventral view; 6, gular swelling, enlarged. gs, gular swelling.

FIGURES 7–8. Paraindopamphantus bruneiensis, holotype female: 7, meso- and metathoracic area, lateral view; 8, posterior part of thorax and abdomen, dorsal view.sgsp, scent gland spout; ssp, scutellar spine.

FIGURES 9–10. Paraindopamphantus bruneiensis, holotype female: 9, part of thorax and abdomen, ventral view; 10, abdominal dorsum. sgs, scent gland scar; sgsp, scent gland spout; II–VII, abdominal tergites.

FIGURES 11–12. Paraindopamphantus bruneiensis, holotype female: 11, abdominal terga; 12, abdomen, lateral view. sgs, scent gland scar; sp, spiracle; II–VII, abdominal tergites.

FIGURES 13–14. Paraindopamphantus bruneiensis, holotype female, abdominal venter. tr, trichobothria; III–V, abdominal sternites.

FIGURES 15–17. Paraindopamphantus bruneiensis, holotype female: 15, spermatheca; 16,17, ovipositor. Abbreviations: ga, gonangulum; 1gpo, 2gpo, first and second gonapophysis; 1gx, 2gx, first and second gonocoxa; 1r, 2r, first and second ramus; sb, spermathecal bulb; spd, spermathecal duct.